NASCAR Sprint Cup Series 2015 Testing News

Covers and reports on known/reported Team Testing and Organized NASCAR Testing

Tire Testing: for news on tire testing, see my Tire Sponsor News and Testing page

Testing Page Links (by Year)
Test Links | 2014 | 2013 | 2012 | 2011 | 2010 | 2009
2008 | 2009 | 2008 | 2007 | 2006 | 2005
2004 | 2003 | 2002 | 2001 | 2000 | 1999

  • Planned NASCAR testing for the 2015 season:
    Feb. 26: Atlanta (extra day added to race schedule)
    March 11: Charlotte
    April 8: Richmond
    April 15: Kentucky
    April 29: Indianapolis
    May 13: Dover
    June 11: Darlington
    June 17: Richmond
    July 15: Chicago
    July 29: Bristol
    Aug. 26: Homestead
    Sept. 16: Kansas
    Oct. 14: Phoenix
    Oct 20: Michigan (2016 rules)
    Oct. 29: Atlanta
    All but Atlanta is an extra day of open testing added to Goodyear tire tests

Testing News

  • Goodyear Tire test at Homestead: Goodyear will hold a one day tire test Monday at Homestead-Miami Speedway. Drivers scheduled to participate are: #4-Harvick (Stewart-Haas Racing), #24-Elliott (Hendrick Motorsports), #9-Scott (Richard Petty Motorsports), and #78-Truex, Jr. (Furniture Row Racing). Testing is not open to the public.(12-14-2015)

  • Drivers complete test at Atlanta: NASCAR Sprint Cup Series drivers were on track at Atlanta Motor Speedway participating in test sessions for the second straight week on Tuesday and Wednesday this week, ahead of the 2016 Folds of Honor QuikTrip 500 Weekend. #1-Jamie McMurray, #17-Ricky Stenhouse Jr., Bobby Labonte and David Ragan, again subbing in for Carl Edwards in the #19 car, were all on hand for a closed Goodyear tire test. The Goodyear test followed a Sprint Cup Series open team test last Thursday in which teams were testing the low-downforce aero package that will be used full time next season and for the first time at Atlanta. Inclement weather shortened the sessions on both days, but cars were eventually able to log laps after jet dryers worked overtime to prepare the track for safe driving. Tuesday, drivers worked predominantly on short runs, while longer runs were the name of the game on Wednesday. Often, Goodyear will invite a handful of teams to participate in a tire test as they prepare a new tire customized for optimal performance at specific tracks. Atlanta Motor Speedway's aged, rough surface popular with many drivers, combined with the new aero package in 2016 prompted the track to host the test in preparation for the unique racing anticipated in next season's Sprint Cup Series event.(AMS)(11-7-2015)

  • Drivers complete Atlanta test: NASCAR fans had a rare opportunity to watch an open team test at Atlanta Motor Speedway, as Sprint Cup Series drivers turned laps while evaluating NASCAR's new, low-downforce aero package that will be utilized full time in 2016. Joey Logano, winner of three straight races, Dawsonville native Chase Elliott, Kurt Busch, Ryan Blaney, David Ragan, Ricky Stenhouse Jr. and Aric Almirola all participated in the test, which was open to one driver and car from each Sprint Cup Series team. The new rules package, which will be run for the first time in 2016 at Atlanta Motor Speedway, includes a 3.5-inch rear spoiler, a .25-inch front splitter leading edge and a 33-inch-wide radiator pan. It is designed for drivers to play a larger role in handling and maneuvering and allow for easier conditions to pass on the race track. Early on in the morning session, Aric Almirola clocked a lap time of 30.544 seconds, hitting 185.198 miles per hour, while Ricky Stenhouse Jr. touched just under 185 miles per hour and a lap time of 30.698. Later in the afternoon, Kurt Busch hit a speed of 176.518 miles per hour, and Joey Logano broke 177 miles per hour with a lap time of 31.004 in the warmer afternoon air.(Atlanta Motor Speedway)(10-30-2015)

  • Teams testing 2016 rules package at Michigan UPDATE: NASCAR and Goodyear officials, along with three Sprint Cup Series teams, return to Michigan International Speedway Tuesday to test a low downforce aerodynamic package scheduled for use at most venues where the series will compete in 2016. Teams and drivers scheduled to participate are: #11-Denny Hamlin, #25-Chase Elliott, and Chris Buescher in the #17. "The real key at Michigan is to see ... what the top speeds are and understand that," Greg Stucker, Director of Race Tire Sales for Goodyear, said Saturday at Kansas Speedway. We (tested) low downforce at Michigan in 2014; had a test up there and had a number of different (aero) packages and low downforce was one of them. We were pretty conservative at that point. So we've got some data to go off of and we'll go back in the spring (of '16) to confirm." NASCAR officials announced last week that a low downforce package, similar to the one used at Kentucky Speedway and Darlington Raceway earlier this season, would be put into play for the bulk of the races in 2016. Decreasing the area of the leading edge of the spoiler and radiator pan will lessen the amount of downforce on the front of the cars while a shorter spoiler will similarly impact rear downforce. No major changes are expected for the sanctioning body's superspeedway rules package, which will be used at Talladega Superspeedway this weekend. Tuesday's test is expected to consist of individual 10- and 25-lap runs in morning and afternoon sessions. According to Michigan officials, the Turn 1 grandstand seats will be open for fans with no admission charge.(
    UPDATE: NASCAR tested its 2016 base package that will be used during the 2016 NASCAR Sprint Cup Series season at Michigan International Speedway on Tuesday, enlisting the help of three future superstars. Drivers Chase Elliott, Chris Buescher and Erik Jones tested the super-fast, two-mile racetrack, helping engineers look at max speeds and corner speeds to determine the best tire combination for when the NASCAR Sprint Cup Series returns to the racetrack in June. Characteristics of the lower downforce rules package means more off-throttle time for drivers and decreasing corner speeds. This generates more passing zones over the entire track, and allows for multiple tire combinations to be levered.(MIS)(10-21-2015)

  • Cup teams to test at Atlanta: With the 2016 Folds of Honor QuikTrip 500 weekend at Atlanta Motor Speedway just over four months away, fans will have an opportunity to get an early NASCAR fix when the track hosts an open team test for Sprint Cup Series teams on its 1.54-mile track Thursday, Oct. 29. The test, open to one driver from each NASCAR team participating in the Sprint Cup Series, will be a preview of NASCAR's new, low-downforce aero package, which will be used for the first time in 2016 in the Folds of Honor QuikTrip 500. General admission in the Champions Grandstand will be free and open to the public for fans interested in watching the test session. Fans who have purchased a ticket to any 2016 NASCAR Weekend event will also be invited to visit the infield, where they will have special access to viewing zones in the garage and pit areas. Drivers will be on track from 9:00am-5:00pm, breaking for one hour from around noon to 1:00pm. AMS ticket agents will be on hand for fans interested in purchasing their 2016 NASCAR Weekend tickets on the day of the test.(AMS)(10-16-2015)

  • Teams complete open test at Phoenix: NASCAR held an open testing session at Phoenix International Raceway Wednesday, and nearly 1,000 race fans were in attendance to watch some of the NASCAR Sprint Cup Series' best on the track. Drivers who participated in the testing session included Chase for the Sprint Cup Contenders #41-Kurt Busch, #24-Jeff Gordon, #20-Matt Kenseth, #2-Brad Keselowski, #31-Ryan Newman and #78-Martin Truex Jr. NASCAR Sprint Cup Series competitors #1-Jamie McMurray and #17-Ricky Stenhouse Jr. also took part in the session.
    With the new testing format, drivers like Kenseth understand the importance of time on the track. "I don't know that your exact setup that worked out today will work when you come back in November, but you still learn a lot," Kenseth said. "We don't get much track time anymore so this gives us a few days out here to gather some data and see what the track is like and try to work through some things."
    The testing session is the last chance for teams to gather data on track before the Quicken Loans Race for Heroes 500 on Nov. 15. The Quicken Loans Race for Heroes 500 is the final race in the Eliminator round of the Chase for the NASCAR Sprint Cup. After the race, the field of championship contenders will be trimmed from eight hopefuls to the final four drivers that will race for the championship the next week. Fans were asked by PIR to make a $5 donation to Phoenix Raceway Charities for admission to the testing session. Phoenix Raceway Charities is a Donor Advised Fund under The NASCAR Foundation, and its mission is to accelerate the development of children in Arizona by supporting education, children and families of our military and military veterans, and life enrichment programs for children and families in our community.(PIR)(10-15-2015)

  • NASCAR will conduct a 2016 rules test at Michigan: NASCAR is scheduled to conduct a test at Michigan International Speedway on Tuesday, October. 20 in preparation for the 2016 racing season. Denny Hamlin from Joe Gibbs Racing, Chase Elliott from Hendrick Motorsports and Chris Buescher from Roush Fenway Racing are expected to participate. The Turn 1 grandstand seats will be open for fans free of charge on Oct. 20.(MIS)(10-8-2015)

  • Testing at Kansas UPDATE: #48-Jimmie Johnson, #78-Martin Truex Jr., #43-Aric Almirola and #23-J.J. Yeley are scheduled to take part in a Goodyear tire test beginning today at Kansas Speedway. The session concludes Tuesday. There is an open test for NASCAR Sprint Cup organizations Wednesday. Only one tire test remains this season after the Kansas test. Stewart-Haas Racing, Team Penske, JTG Daugherty and Joe Gibbs Racing will take part in a tire test Oct. 12-13 at Phoenix International Raceway. Each Cup organization is allowed to have one team at Wednesday's open test. Scheduled to test that day are Kevin Harvick, Kyle Busch, Brad Keselowski, Jamie McMurray, Paul Menard, Clint Bowyer, Greg Biffle, Alex Bowman, Ryan Blaney, Johnson, Truex, Almirola, Yeley.(NBC Sports)(9-14-2015)
    UPDATE: In anticipation of a new aerodynamic package for 2016, Goodyear is conducting a two-day tire test at Kansas Speedway starting on Monday. "We're actually going to be doing a lot of work on low downforce," Greg Stucker, Goodyear's director of race tire sales told "Obviously, we had two good races with that setup and we just want to get a leg up on that package at that race track, make sure our race setup (for 2015) is still good. "But the main focus is 2016 and low downforce and looking at the variations with the current package as well as going softer. We're just going to shake it down. We think we're fine with the current package, but the majority of the test will be low downforce." During last year's Chase for the Sprint Cup, NASCAR was insistent about not allowing Chase participants to test tracks in the final 10 races. But Stucker says with open testing and the end of the tire test it makes the process "equitable for everybody".
    Goodyear's next test will be at Phoenix International Raceway on Oct. 12-13 and with an open date on the 14th. Teams currently scheduled to participate include the Nos. 41, 2, 47 and one of the Joe Gibbs Racing Toyotas. "Phoenix is an early race in 2016," Stucker said. "We're not sure which way we'll go, but if you look at the Kentucky and Darlington races - and the discussions that we've had - we want to be prepared to go in (a low downforce) direction if that's what NASCAR wants to do."
    One thing Stucker cautioned about was the level of tire fall off. Although Goodyear selected a softer compound for Darlington, the track has gained character since it was repaved in 2007. He believes the overall goal will not be simply choosing a softer tire but trying "to optimize the package for individual racetracks."
    "A lot of people talked a lot about tire fall off," Stucker said. "I know a lot of people say that's one of things we're trying to accomplish but Darlington is starting to be the Darlington of old. There's a lot of fall off on that surface. We saw a lot of fall off in the Xfinity race the night before and they were running the package we intended to run on the standard 2015 (Sprint Cup) package.
    After last month's tire test at Homestead-Miami Speedway, Goodyear will bring the same tire package to the season finale as it will run this weekend at Chicagoland Speedway and at Texas Motor Speedway on Nov. 8. Goodyear is also looking at scheduling additional tire tests for Atlanta Motor Speedway and Las Vegas Motor Speedway depending on the direction NASCAR takes with the aero package.(Motorsport)(9-15-2015)
    UPDATE2: Part of what Goodyear officials, along with four NASCAR Sprint Cup Series teams, did here at Kansas Speedway Monday and Tuesday was verify the tire combination to be used in next month's Chase for the Sprint Cup race at the 1.5-mile track. On Wednesday, 12 teams did a little verifying of their own, taking part in an open team test before heading to Chicago for this weekend's opening race in the Chase for the Sprint Cup. "It seems like at this point in the year with the (rules) package and program that we're under with the car, you're kind of just verifying things," Michael Waltrip Racing driver #15-Clint Bowyer said during a break in testing. "There are a very specific, few items that we're making sure that we have verified to when we go to Chicago starting the Chase this weekend that we know that's going to be the right way to go." In addition to Bowyer, other Chase drivers testing Wednesday were #48-Jimmie Johnson (Hendrick Motorsports), #2-Brad Keselowski (Team Penske), #1-Jamie McMurray (Chip Ganassi Racing with Felix Sabates), #4-Kevin Harvick (Stewart-Haas Racing), #18-Kyle Busch (Joe Gibbs Racing) and #27-Paul Menard (Richard Childress Racing). Also testing but not in the Chase were #43-Aric Almirola (Richard Petty Motorsports), #16-Greg Biffle (Roush Fenway Racing), #7-Alex Bowman (Tommy Baldwin Racing), #26-J.J. Yeley (BK Racing) and #21-Ryan Blaney (Wood Brothers Racing). Johnson was one of four drivers taking part in the 2-day Goodyear test, and the six-time series champion said he was ready for a change of scenery. "I've run almost two races now," he said during a break. Much time during the Goodyear test, he said was working with the potential 2016 rules package, a platform that features less downforce and was used twice this year -- at Kentucky and Darlington. "I found myself behind a few cars and felt like the car drove really well in traffic," he said. "I think we found and identified a few sets of tires worked really well, started off fast and had a lot of falloff. So I feel like the last two days of the tire test were very productive. Today ... we worked through a busy morning trying some things off our list. We've got a long list of stuff to try; we don't test all that often. Really just working through this systematically, seeing what might be faster and just collecting data."(

  • Test at Auto Club cancelled: NASCAR has cancelled a Goodyear tire test and open team test scheduled for Oct. 27-29 at Auto Club Speedway in Fontana, CA. Goodyear determined it wasn't necessary to return to the 2-mile track based on tire wear results from this past season's race. And with Goodyear canceling the two-day portion of the test, teams opted not to make the cross-country trek a day before having to be in Martinsville, Virginia, for the opening race of the Eliminator Round in this year's Chase. Only two open tests remain on this year's National Series Unified Testing schedule -- next week (Sept. 14-16) at Kansas Speedway and Oct. 12-14 at Phoenix International Raceway.(

  • Teams to test at Homestead UPDATE: NASCAR has scheduled a Sprint Cup Series test for Homestead-Miami Speedway on Wednesday, August 26. One team from each organization will be eligible to take part in the test, which will run from 9:00am-5:00pm. Teams will test at Homestead-Miami Speedway in preparation for the season-ending Ford EcoBoost 400 on Sunday, November 22, where the Championship 4 drivers will battle for the 2015 NASCAR Sprint Cup Series championship. Testing will be open to the public from 9:00am-5:00pm in the infield Pit Road Cabanas, as well as from the chair-back seats in the Speedway Club on the fourth floor of the tower building. Fans may enter and park in the parking lot on SW 336thStreet and SW 137th Avenue and take a tram into the infield to watch testing. Snacks and drinks will be available for purchase in the infield.(Homestead-Miami Speedway)(8-18-2016)
    UPDATE: Four drivers will participate in a Goodyear tire test at the 1.5-mile South Florida track Monday and Tuesday with an open test scheduled for Wednesday -- NASCAR allowing each Sprint Cup Series team to be represented by one car. Trevor Bayne (Roush Fenway Racing), Clint Bowyer ( Michael Waltrip Racing), Ryan Newman (Richard Childress Racing) and Kyle Larson (Chip Ganassi Racing with Felix Sabates) are scheduled for the Goodyear test.
    AND One team from each organization in the NASCAR Sprint Cup Series is slated to test at Homestead-Miami Speedway on Wednesday, August 26. Testing will run from 9:00 to 5:00pm/et.
    NASCAR Sprint Cup Series teams / drivers scheduled to participate:
    #6-Trevor Bayne, Ford, (Roush Fenway Racing)
    #21-Ryan Blaney, Ford, (Wood Brothers Racing)
    #15-Clint Bowyer, Toyota, (Michael Waltrip Racing)
    #31-Ty Dillon, Chevy, (Richard Childress Racing)
    #88-Dale Earnhardt Jr., Chevy, (Hendrick Motorsports)
    #11-Denny Hamlin, Toyota, (Joe Gibbs Racing)
    #4-Kevin Harvick, Chevy, (Stewart-Haas Racing)
    #42-Kyle Larson, Chevy, (Chip Ganassi Racing with Felix Sabates)
    #22-Joey Logano, Ford, (Team Penske)
    #78-Martin Truex Jr., Chevy, (Furniture Row Racing)
    UPDATE 2: Rain interrupted much of Wednesday's testing at Homestead-Miami Speedway. NASCAR extended the test until 10:00pm. Teams ended up with approximately 3 hours of on-track time. Fastest was #11-Hamlin at 176.696mph, then #21-Blaney 176.206 & #4-Harvick 176.062mph.(8-27-2015)

  • Bristol to hold fan day during test session July 29 UPDATE: Up to 12 NASCAR Sprint Cup Series teams are expected to test at Bristol Motor Speedway Wednesday, July 29, an event that the Speedway is making free to the public as part of the "It's MY Bristol Baby!" campaign to express the Speedway's appreciation to local fans and supporters. Bristol Motor Speedway Fan Day activities run 9:00am-5:00pm/et. Beginning at Noon, the Speedway will offer interactive displays and kids' activities including show cars, mascot appearances, photo sharing, inflatables and face painting. Participating Sprint Cup drivers will be announced the week of July 27. Guests can enter the Speedway through the North or South entrances off Volunteer Parkway, and the stands via Gate 7.(BMS)(7-11-2015)
    UPDATE: NASCAR Sprint Cup Series teams will be looking to get a jump on the competition for next month's annual night race at Bristol Motor Speedway as several teams are scheduled to take part in an open test this Wednesday at the 0.533-mile track. Team Penske driver #22-Joey Logano, the defending winner of the Irwin Tools Night Race, heads up a list that includes #17-Ricky Stenhouse Jr. (Roush Fenway Racing), #1-Jamie McMurray (Chip Ganassi Racing with Felix Sabates), #55-David Ragan (Michael Waltrip Racing), #27-Paul Menard (Richard Childress Racing), #19-Carl Edwards (Joe Gibbs Racing), #10-Danica Patrick (Stewart-Haas Racing), #21-Ryan Blaney (Wood Brothers Racing), #5-Kasey Kahne (Hendrick Motorsports) and #43-Aric Almirola (Richard Petty Motorsports). A two-day Goodyear tire test previously scheduled for Monday and Tuesday has been canceled.(

  • Open test at Chicago UPDATE: On Wednesday, July 15, select drivers will participate in a NASCAR open test at Chicagoland Speedway. Drivers scheduled to participate include: #88-Dale Earnhardt Jr., #42-Kyle Larson, #16-Greg Biffle, #9-Sam Hornish Jr., #11-Denny Hamlin, #21-Ryan Blaney, #23-JJ Yeley, #3-Austin Dillon, #78-Martin Truex Jr., #41-Kurt Busch, #15-Clint Bowyer, #51-Justin Allgaier and #2-TBD. The test will be open to all fans who have a September Chicagoland Sprint Cup race ticket. Gate 4 opesn at 1:30pm/ct for parking. The CLS Legends Club Suites will be open 2:00-5:00pm local time. The test is subject to change due to weather or other circumstances.(Chicagoland Speedway)(7-9-2015)
    UPDATE: A number of NASCAR Sprint Cup Series teams completed a one-day open test session at Chicagoland Speedway on Wednesday. The test followed-up a two-day Goodyear tire test that featured #88-Dale Earnhardt Jr., #78-Martin Truex Jr., #9-Sam Hornish Jr. and #23-JJ Yeley. "We spent most of Monday working in our regular 2015 configuration," Hornish Jr. said. "Yesterday was spent mostly in the Kentucky setup. I did two runs with the Michigan-Indy option, but that was with the wheel force car." Today's test session gave teams an option to run different configurations like in the tire test. But Earnhardt Jr. doesn't think the low-downforce rules package that was used at Kentucky will make an appearance at Chicagoland Speedway when NASCAR kicks off the Chase for the Sprint least for this season.
    "I don't think they'll run here," Earnhardt said. "We may run it here soon down the road. Coming here for a three-day test, we went through tires for Goodyear. They mandated that all the cars put that little spoiler on the second day. That told me they were thinking about running that low downforce here. And then we saw the tires tearing up, we tore up some right front tires. Martin (Truex Jr.) tore up one, I tore up one, the '9' tore up one, and when Goodyear sees that, the red flag comes out and you have to slow down and there's just not enough time to really prepare for the right tire and get it on the car and get it ready for the Chase. I think we'll run the 2015 current package that we've run all year here and who knows if we'll have it next year."
    While teams were on different agendas in the garage, Austin Dillon ran all three packages and paced the afternoon session with a lap time of 29.497 seconds (183.069 mph). Dillon tested the higher-drag package that will be used at both Indianapolis (July 26) and Michigan (Aug. 16), which includes a nine-inch spoiler and one-inch wicker bill, to gather data. Denny Hamlin was second fastest in the afternoon (180.923 mph) with Earnhardt Jr. in third (180.626 mph). Brad Keselowski, who is the defending winner at Chicagoland, was fourth quick in the afternoon with a lap time of 29.906 seconds (180.566 mph). Overall, 12 drivers participated in the open test. Truex Jr. did not return today following the tire test. Kurt Busch completed the most laps in the afternoon session, at 86. The only incident on the day came in the garage area when the battery in Kyle Larson's car caught fire and was quickly extinguished.(Motor Racing Network)(7-15-2015)

  • Teams to test new rules package at Kentucky Wednesday: NASCAR will take a reduced downforce package to Kentucky Speedway this week, and it appears many in the industry have high hopes. They have high hopes for the potential of the package. They're just not sure that they'll see the results at Kentucky. Finding the right rules to encourage side-by-side racing and lead changes -- in other words, reducing the dreaded "aero push" -- has resulted in NASCAR taking the unconventional step of experimenting with a different aerodynamic package this week at the 1.5-mile Kentucky oval. Drivers are unsure what to expect this weekend. They'll start to find out Wednesday as the testing at Kentucky begins. Three days after the test, NASCAR will have its first real test -- a race that counts just as any of the others on the calendar. The teams will have four hours of practice Wednesday afternoon and evening. Teams can use either their primary or backup cars for the race weekend -- which begins Friday -- during the test and they can have data acquisition systems on the car. They will be allowed to change engines prior to practice Friday morning. Teams have been told to have all the regular 2014 rules package components with them for the race weekend in case NASCAR opts to revert to the package used previously. But after all the hype about the reduced downforce package, the test would have to go horribly wrong Wednesday. Teams will use a 3.5-inch spoiler instead of a 6-inch spoiler. The splitter will have 1.75 inches less overhang. The radiator pan has been reduced from 38 inches to 25 inches. The entire package could reduce downforce by 25 percent in the cars, which currently produce approximately 3,200 pounds of downforce.( The test sessions are scheduled for 3:00-5:00pm/et and 6:00-8:00pm/et. Any reported speeds will be posted. Fans can watch for free by entering the track at gate 15.(7-8-2015)

  • Testing drivers comment on rules change: Because his team was among several testing tires at Richmond International Raceway on Wednesday, #55-David Ragan is hoping NASCAR doesn't have any plans to alter its short-track rules before the Sprint Cup circuit returns here in September for the Federated Auto Parts 400. "I think they've got a pretty good package when it comes to short-track tracing," said Ragan, who drives for Michael Waltrip Racing. "I don't think your aero package is as important as the fast 1˝-mile racetracks. When you're at Martinsville and Bristol and even here in Richmond - it's a little faster - it's important to have your tires working together, your mechanical grip right. Aero is certainly important, but it's not as important as those big tracks."
    "It doesn't matter who dominates the race," said #22-Joey Logano, who was testing with his Penske Racing team on Wednesday. "A rules package isn't going to change that. ... I'm not hoping for a rules-package change just to slow somebody down. That's our job to figure out how to make our car go faster and make sure we can beat them. If they change it, good. If they don't, I'm good either way. It's the same for everyone."
    NASCAR originally aimed to have the rules changes in place for next season but sped up the process after talking to teams and racing industry officials. To reduce downforce for the Kentucky race, the height of the spoiler will be lowered, the splitter extension panel will be decreased and the splitter will have less overhang. To improve grip, O'Donnell said a softer tire will be used, although it's not specifically made for the new package. "I applaud NASCAR," said #19-Carl Edwards, who was testing at RIR for Joe Gibbs Racing. "NASCAR wants to make this the best sport they can for the fans. They want to make it the most fun for the drivers. Taking downforce off and making the cars hard to drive, in my opinion they're a third of the way where they need to go. They need to keep taking it off and keep making it better."(Richmond Times Dispatch)(6-19-2015)

  • Testing at Richmond: A week after testing at Darlington Raceway, it's off to Richmond International Raceway for Goodyear officials and a handful of NASCAR Sprint Cup Series teams. The official tire supplier for NASCAR will test with four teams Tuesday at the 0.75-mile track in preparation for this year's Chase for the NASCAR Sprint Cup cutoff race. #42-Kyle Larson (Chip Ganassi Racing with Felix Sabates), #6-Trevor Bayne (Roush Fenway Racing) and #55-David Ragan (Michael Waltrip Racing) are scheduled to take part in the Goodyear tire test. NASCAR XFINITY Series driver Brian Scott (Richard Childress Racing) will also take part, stepping into the #27 for driver Paul Menard. The four will join several others on Wednesday for an open team test. According to officials, those scheduled to be on hand are #24-Jeff Gordon (Hendrick Motorsports), #19Carl Edwards (Joe Gibbs Racing), #22-Joey Logano (Team Penske), #9-Sam Hornish Jr. (Richard Petty Motorsports), #30-Jeff Green (The Motorsports Group) and #75-Clay Rogers (Beard Motorsports). Stu Grant, Goodyear's general manager for global race tires, said several options would be considered. "We've got a pretty good baseline at Richmond," he said. "I don't want to move too far off of that. We're not going to test a whole lot of different things. We ran a (multi-) zone tread at Richmond; we'll try a couple of zone treads, we'll try a couple of non-zone treads to see what happens ... we don't have a real big program (scheduled) so we can get that done in a day." Wednesday's test will be open to fans, with access to the grandstands through Gate 70 only.(

  • Truex, Jr fastest at Darlington test: Twelve drivers took part in an open NASCAR test Wednesday at Darlington Raceway including the most recent Sprint Cup Series winner, #78-Martin Truex Jr. He finished atop the speed chart with a lap of 175.535 mph just three days after driving to victory at Pocono Raceway. #18-Kyle Busch ran a session-high 108 laps, finishing fifth on the speed chart at 174.036 mph. #1-Jamie McMurray (174.646 mph) was second, #41-Kurt Busch (174.196 mph) third and #31-Ryan Newman fourth (174.110 mph). The hot, slick track lived up to its slogan "Too Tough to Tame" during Wednesday's test, with both Busch and Joey Logano making contact with the outside wall. #15-Clint Bowyer approved of the track conditions, saying "This is the fastest repave wear-out ever." The track was resurfaced in 2008. The temperature during the test peaked into the low 90s. Teams can expect it to be similar come race weekend in early September, when the average temperature in Darlington is 85 degrees.(Motor Racing Network)(6-11-2015)

  • Testing at Darlington; fans welcome: Fans who want to experience the sights and sounds of the NASCAR Sprint Cup Series roaring around Darlington Raceway before the Bojangles' Southern 500 on Labor Day weekend might want to pay a visit to the famed South Carolina track on Wednesday, June 10. On that day, Darlington Raceway is hosting an open NASCAR test session from 9:00am-5:00pm. The test is free and open to the public, giving fans the opportunity to see NASCAR's stars race around the high banks of the track Too Tough To Tame. Ten NASCAR Sprint Cup Series race teams are scheduled to participate in the test session. Drivers currently scheduled to take part are #43-Aric Almirola, #16-Greg Biffle, #15-Clint Bowyer, #41-Kurt Busch, #18-Kyle Busch, #48-Jimmie Johnson, #22-Joey Logano, #1-Jamie McMurray, #31-Ryan Newman and #78-Martin Truex Jr. Darlington Raceway will open two sections of the Colvin Grandstands, on the backstretch of the track, for fans to watch the test throughout the day. Fans need to use the Gate 3 entrance to the track off of Highway 151. The parking lot is located next to the track's administration building.(Darlington Raceway)(6-2-2015)

  • Testing at Dover UPDATE2: 12 NASCAR Sprint Cup Series drivers will visit Dover International Speedway on Wednesday, May 13, 2015 for an open test session next week, just weeks before NASCAR makes its return to Dover for the May 29-31 race weekend. Fans that want to attent the test session may watch from the enclosed, climate-controlled seating located on the third floor of the Dover Downs Hotel & Casino. Fans can access this area by following signs to the Dover International Speedway ticket office and proceeding to the third floor. Drivers scheduled to participate include: #47-AJ Allmendinger, #43-Aric Almirola, #16-Greg Biffle, #26-Jeb Burton, #3-Austin Dillon, #11-Denny Hamlin, #48-Jimmie Johnson, #22-Joey Logano, #1-Jamie McMurray, #13-Casey Mears, #10-Danica Patrick and #55-David Ragan.(Dover International Speedway)(5-9-2015)
    UPDATE: Testing Monday at Dover International Speedway were: #47-Allmendinger, #11-Hamlin, #22-Logano, and #10-Patrick.(Goodyear Racing)(5-11-2015)
    UPDATE: Matt DiBenedetto flew up to Dover to test the #26 Toyota in place of Jeb Burton (DiBenedetto's Twitter), supposedly Burton was injured and couldn't test.(5-13-2015)

  • Thirteen teams to test at Indianapolis: Thirteen NASCAR Sprint Cup Series teams are scheduled to participate in an open test April 29 at Indianapolis Motor Speedway. Slated to take part in the one-day event are #24-Jeff Gordon (Hendrick Motorsports), #4-Kevin Harvick (Stewart-Haas Racing), #15-Clint Bowyer (Michael Waltrip Racing), #19-Carl Edwards (Joe Gibbs Racing), #9-Sam Hornish Jr. (Richard Petty Motorsports), #2-Brad Keselowski (Team Penske), #42-Kyle Larson (Chip Ganassi Racing with Felix Sabates), #13-Casey Mears (Germain Racing), #27-Paul Menard (Richard Childress Racing), #17-Ricky Stenhouse Jr. (Roush Fenway Racing), #78-Martin Truex Jr. (Furniture Row Racing), #21-Ryan Blaney (Wood Brothers Racing) and #23-J.J. Yeley (BK Racing). Gordon, Truex Jr., Hornish Jr. and Yeley are on tap to take part in a two-day Goodyear tire test at IMS Monday and Tuesday preceding the open test. According to IMS track officials, the Turn 2 viewing mounds (infield) and South Terrace grandstands will be open to fans. The Pit Stop Café next to the IMS Hall of Fame Museum will also be open during the test session.(

  • Testing at Kentucky UPDATES: Eight NASCAR Sprint Cup drivers and teams are scheduled to participate in the April 15 open test at Kentucky Speedway ahead of the track's Quaker State 400 in July. The open test will be preceded by a closed Goodyear tire test on April 13 and 14 with one team each from the following organizations: Chip Ganassi Racing, Michael Waltrip Racing, Richard Childress Racing and Roush Fenway Racing. On April 15, #16-Greg Biffle, #88-Dale Earnhardt Jr., #20-Matt Kenseth, #22-Joey Logano, #1-Jamie McMurray, #10-Danica Patrick, #31-Ryan Newman and #9-Sam Hornish Jr. are scheduled to participate in the open test with April 16 serving as a rain date before the Sprint Cup Series heads to Bristol Motor Speedway next weekend.(
    UPDATE: #16-Greg Biffle, #1-Jamie McMurray, #55-Brett Moffitt and #31-Ryan Newman are taking part in a Goodyear tire test Monday and Tuesday at Kentucky Speedway. There will be an open test there Wednesday. Each Sprint Cup organization can have one car test there. This is the second of three Goodyear tire tests this month. Teams were at Richmond International Raceway last week. The month's third tire test is scheduled for April 27-29 at Indianapolis Motor Speedway. Teams that will have one car at that tire test will be Hendrick Motorsports, Furniture Row Racing, Richard Petty Motorsports and BK Racing.(NBC Sports)
    AND Jamie McMurray provided a glimpse of NASCAR's new high tech dashboard during a test at Kentucky Speedway. The Chip Ganassi Racing driver sent out a series of Tweets on Monday while taking part in a Goodyear tire test that gave a couple views of what the new dashboard might look like when it's implemented. The dashboard has the ability to monitor a variety of data including lap times and tire pressure as well as keeping drivers informed on other items during pit stops. NASCAR has stated at some point the information gathered through the new system would be available to fans and offer an interactive way to monitor a car's performance. In fact NASCAR rule book states the a digital dash display "may be used at all Events after August 5, 2015. Digital dash display use will not be permitted before August 5, 1015. Effective January 1, 2016, a digital dash display must be used at all Events."(Motor Racing Network)(4-14-2015)
    UPDATE 2: Brad Keselowski was testing with the #22 team of teammate Joey Logano instead of his own #2 squad at Kentucky. Logano was originally scheduled to participate but was unable to attend. Also taking part in the open test were #16-Greg Biffle (Roush Fenway Racing), #31-Ryan Newman (Richard Childress Racing), #1-Jamie McMurray (Chip Ganassi Racing with Felix Sabates), #55-Brett Moffitt (Michael Waltrip Racing), #21-Ryan Blaney (Wood Brothers Racing), #20-Matt Kenseth (Joe Gibbs Racing), #88-Dale Earnhardt Jr. (Hendrick Motorsports), #10-Danica Patrick (Stewart-Haas Racing) and #9-Sam Hornish Jr. (Richard Petty Motorsports). Wednesday's test was the fourth for teams in 2015 under the NASCAR National Series Unified Test Schedule. Open tests have been held at Atlanta, Charlotte and Richmond. The next scheduled test is set for April 29 at Indianapolis Motor Speedway. In the day's only mishap, Moffitt sustained damage to his #55 Toyota during the morning session after contact with the wall, requiring the team to bring out a backup entry for the remainder of the day.(

  • Testing at Richmond on Tuesday & Wednesday UPDATE: Ever seen a movie preview that made you want to go see the main feature? Are you staying in town and wondering what to do during Spring Break? Richmond International Raceway has just the thing. We want you to join us as we preview some of the NASCAR Sprint Cup Series' biggest names on Wednesday, April 8 when they take to the track to prepare for the main feature, the Saturday, April 25 TOYOTA OWNERS 400. Check the full guest list: #24-Jeff Gordon, #14-Tony Stewart, #2-Brad Keselowski, #15-Clint Bowyer, #42-Kyle Larson, #11-Denny Hamlin, #3-Austin Dillon, #6-Trevor Bayne, #43-Aric Almirola, #13-Casey Mears, #78-Martin Truex Jr, and #47-AJ Allmendinger. Fans are invited to attend testing on Wednesday, April 8 from 10:00am-5:00pm. Sit in the grandstands and enjoy a sneak peek of what's to come in a few short weeks. To access the grandstands, enter through the Main Gate on the corner of Laburnum Avenue and Richmond-Henrico Turnpike. Once in the gate, park near the Virginia is For Lovers Frontstretch Gate and Gate 70, located in Turn 4. Fans can enter the grandstands through Gate 70 only.(RIR) Teams will also test on Tuesday, but the track is close to the public then.(4-7-2014)
    UPDATE: The engineers and mechanics who hunched over an array of computers plied their trade with typical high-tech flair during Wednesday's open NASCAR test at Richmond International Raceway, analyzing data feeds and crunching numbers while their drivers made the rounds. The seven-hour session, which started 2 1/2 hours late because of early morning rain, came on the heels of Tuesday's rain-delayed Goodyear tire test here, where teams confirmed the rubber that will be used in the springtime 400-lapper. But in addition to making tires work, teams used the extra time to try different setups that may pay dividends in a little over two weeks. Thirteen drivers added the Richmond detour before heading to this weekend's racing at Texas Motor Speedway, driving cars equipped with ride-height sensors and pitot tubes to measure wind velocity. Additionally, three "wheel-force" cars -- one for each manufacturer and marked with a "W" beside their number on the scoring sheet -- also made the trip, each outfitted with a complex sensor attached to each wheel to measure load on the tires. The information from those three cars -- with Team Penske representing Ford, JTG-Daugherty Racing for Chevrolet, and Joe Gibbs Racing for Toyota -- would be shared within each manufacturer network. Tuesday at Richmond, teams tested tires for nearly four hours after steady showers pushed back the on-track schedule. Goodyear will employ zone-tread technology -- using two different rubber compounds, one for improved endurance and one for enhanced traction, in a single tread -- on its right-side tires. The left-side tire compound will remain the same as the one teams raced on last September.(

  • Teams testing this week at Charlotte UPDATES: Four teams are scheduled to take part in a Goodyear tire test test Tuesday at Charlotte Motor Speedway. Those teams are Hendrick Motorsports (#5-Kasey Kahne), Furniture Row Racing (#78-Martin Truex Jr.), Richard Petty Motorsports (#43-Aric Almirola) and BK Racing (#23-JJ Yeley). Tuesday's session is closed to the public. There will be an open test Wednesday at the track. Charlotte Motor Speedway officials state that teams expected to test that day include Kahne, Truex, Kevin Harvick, Joey Logano, Jamie McMurray and about half a dozen other teams. Wednesday's session is open to the public. Gates open at 9:00am. Testing is scheduled to run from 9:00am-12:00pm and from 1:00-5:00pm/et. The next scheduled test is April 7-8 at Richmond International Raceway. Four teams will test there. Each will have one car. Those teams testing will be Stewart-Haas Racing, JTG Daugherty, Team Penske and Joe Gibbs Racing. That begins a busy test period. Tire tests are scheduled April 13-15 at Kentucky Speedway and April 27-29 at Indianapolis Motor Speedway.(NBC Sports)(3-10-2015
    UPDATE: There are 11 drivers (and teams) scheduled to drive in the Charlotte test [Wednesday]: #11-Denny Hamlin (Joe Gibbs Racing), #43-Aric Almirola (Richard Petty Motorsports), #17-Ricky Stenhouse Jr. (Roush Fenway Racing), #4-Kevin Harvick (Stewart-Haas Racing), #22-Joey Logano (Team Penske), #5-Kasey Kahne (Hendrick Motorsports), #1-Jamie McMurray (Chip Ganassi Racing), #78-Martin Truex Jr. (Furniture Row Racing), #15-Clint Bowyer (Michael Waltrip Racing), Brian Scott (Richard Childress Racing), #95-Michael McDowell (Leavine Family Racing)(NBC Sports)(3-11-2015)
    UPDATE 2: More than one dozen NASCAR Sprint Cup Series teams spent Wednesday at Charlotte Motor Speedway, validating information gleaned from simulation programs while testing on a track and a tire that they will see approximately two months from now. The open test, part of NASCAR National Series Unified Testing Program for 2015, provides one team from each Sprint Cup organization the opportunity to participate. It is the second open test conducted this season, following NASCAR's elimination of private team testing at the conclusion of 2014.
    "Just being able to try things and look at the data acquisition and see exactly what it did," Keith Rodden, crew chief for Hendrick Motorsports driver Kasey Kahne said of the advantages of the test. "Because on a race weekend we don't get to run those sensors so you always have some questions. When I run tests, I try to make big changes, I don't try to 'Happy Hour' it and try to run fast. I don't really care what (speeds) we're running today ... we're trying to make big picture changes, do things to the car to make it act differently. Being able to look at that data that comes right off the car when we come in is really valuable.
    Gene Stefanyshyn, NASCAR's Vice President for Innovation and Racing Development, said such open team tests were helpful to the sanctioning body, but primarily for the teams' benefit. Three elements, he said, stand out. Unlike previous tests conducted prior to the '15 testing program, teams did not test at tracks where Sprint Cup races were held, and they tested on tires that likely wouldn't be used. That combination limited the amount of knowledge that could be gained. Stefanyshyn also said such tests are able to be conducted in a more cost-efficient manner for teams "and we provide them with a higher level of service as they do all this."(

  • NASCAR Test Fest to Rev Up Fans at Charlotte Motor Speedway on Wednesday: Fans will have the chance to see some of NASCAR's biggest names take to the track Wednesday, March 11, as well as get special ticket offers and an autograph from NASCAR Hall of Famer Junior Johnson as part of NASCAR Test Fest at Charlotte Motor Speedway. Grandstand admission is free for fans to watch more than a dozen NASCAR Sprint Cup Series teams participate in this crucial one-day open test at the legendary 1.5-mile superspeedway. Teams will be trying different set-ups to prepare for the 10 Days of Thunder May race events including the May 16 NASCAR Sprint All-Star Race and the May 24 Coca-Cola 600.
    Among the drivers expected to participate in the on-track test session are 2014 NASCAR Sprint Cup Series champion #4-Kevin Harvick, current Daytona 500 champion #22-Joey Logano, 2014 NASCAR Sprint All-Star Race winner #1-Jamie McMurray, 2012 Coca-Cola 600 winner #5-Kasey Kahne and more. The driver lineup is subject to change. In addition to watching the test, fans will be able to get an autograph from Johnson from 11:00am/et to 12:00noon/et and try their luck with spin-to-win, one-day ticket offers in the ticket office, including big discounts on camping and half-price Hisense 300 NASCAR XFINITY Series race tickets.
    While at the track, families can also enjoy interactive games at the Charlotte Motor Speedway Fan Van and appearances by Lug Nut, the world's fastest mascot, as well as test drive the members-only Speedway Club for lunch. Testing will run from 9:00am to 5:00pm/et, with a break for lunch at noon. The frontstretch grandstands will open at 9:00am for the public to enjoy the test session. Fans should enter through gate 5A, by the main ticket office. For ticket information for the 10 Days of Thunder in May, contact the ticket office at 1-800-455-FANS (3267) or visit

  • Atlanta tire test canceled: The March 2-3 NASCAR tire test at Atlanta has been canceled. That was to have been held Monday and Tuesday after the Atlanta race and just before the Cup series begins its three-week West Coast swing. Teams that were to have taken part in that test: Richard Childress Racing, Chip Ganassi Racing, Roush Fenway Racing and Michael Waltrip Racing.(NBC Sports)(2-3-2015)

  • Proposed 2015 NASCAR testing dates for Sprint Cup Series UPDATE: When NASCAR announced in September it was banning all private team testing, the perception was teams would not likely see the opportunity to do much on-track testing. NASCAR at the time said it hoped to incorporate more teams into the 12 to 15 tire tests done each season by Goodyear but that plan seemed to hit logistical roadblocks in recent months. The finished product, outlined in the 2015 NASCAR Sprint Cup Series Rulebook, actually provides teams many opportunities to test on series tracks in the coming season. At Atlanta, an extra testing day has been added to the regular weekend schedule. In addition, an extra day of open testing as been added to Goodyear tire tests at Charlotte; Richmond; Kentucky; Indianapolis; Dover; Darlington; Chicago Bristol; Homestead; Kansas; Phoenix; and Auto Club Speedway:
    Proposed 2015 NASCAR testing dates for Sprint Cup Series
    Date: Type of test
    Jan. 19: Goodyear tire test, Las Vegas
    Feb. 26: Open team test, Atlanta
    March 2-3: Goodyear tire test, Atlanta
    March 10: Goodyear tire test, Charlotte
    March 11: Open team test, Charlotte
    April 7: Goodyear tire test, Richmond
    April 8: Open team test, Richmond
    April 13-14: Goodyear tire test, Kentucky
    April 15: Open team test, Kentucky
    April 27-28: Goodyear tire test, Indianapolis
    April 29: Open team test, Indianapolis
    May 11-12: Goodyear tire test, Dover
    May 13: Open team test, Dover
    June 9-10: Goodyear tire test, Darlington
    June 11: Open team test, Darlington
    July 13-14: Goodyear tire test, Chicago
    July 15: Open team test, Chicago
    July 28-29: Goodyear tire test, Bristol
    July 30: Open team test, Bristol
    Aug. 24-25: Goodyear tire test, Homestead
    Aug. 26: Open team test, Homestead
    Sept. 14-15: Goodyear tire test, Kansas
    Sept. 16: Open team test, Kansas
    Oct. 12-13: Goodyear tire test, Phoenix
    Oct. 14: Open team test, Phoenix
    Oct. 27-28: Goodyear tire test, Auto Club Speedway
    Oct. 29: Open team test, Auto Club Speedway
    (Charlotte Observer)(12-11-2014)
    UPDATE: While teams will be prohibited from testing independently, there will be 12 Goodyear tire tests (with four teams apiece) that will be followed by a one-day open test that will allow one car per organization. Attendance isn't mandatory, and teams must indicate their attendance at least three weeks ahead. If a multicar organization has participated in the preceding tire test, it must use the same driver and team in the open test. The Goodyear tests will be held with a rotating set of three groups of four full-time teams. The first group comprises Stewart-Haas Racing, JTG Daugherty Racing, Joe Gibbs Racing and Team Penske. The second group: Richard Childress Racing, Chip Ganassi Racing, Roush Fenway Racing and Michael Waltrip Racing. The third group: Hendrick Motorsports, Furniture Row Racing, Richard Petty Motorsports and BK Racing.
    NASCAR also will hold "Rule Change Open Tests" in which all teams are allowed to "familiarize themselves with any rule changes from previous race seasons." The sessions will be limited to one "per racetrack grouping" (i.e. short tracks, road courses, speedways). A four-hour session Feb. 26 at Atlanta Motor Speedway (a 1.5-mile superspeedway) is the only Rule Change Open Test scheduled so far for the 2015 season.
    While any other tests are banned for existing teams, the 2015 rulebook allows "New Organization Testing" for those "new to NASCAR to establish themselves." Those teams will be allowed five two-day tests at any track and must be approved by NASCAR. The rulebook defines a "New Organization" as a team that hasn't competed in more than 20 races or two seasons, whichever is first. Teams absent from a circuit for five years also can qualify for new organization status. The Goodyear tests are closed to the public and the news media. The news media will be allowed at open tests, and the public will be permitted access at each track's discretion.(USA Today)(12-12-2014)

  • NASCAR Test Ban May Not Be Cast In Stone: NASCAR's Senior Vice President for Innovation and Racing Development Gene Stefanyshyn commented today on a statement by Roush Fenway Racing co-owner Jack Roush that the sanctioning body's ban on independent testing in 2015 may not be cast in stone. "I think the final word on testing for next year has not been uttered yet by NASCAR," said Roush on Sirius XM NASCAR Radio's Dialed In yesterday (Wed, Oct 29th). "My understanding is there is substantial resistance from Goodyear on what's... on the table right now in terms of their being able to supply the tires for the number of teams that NASCAR anticipates going to the Goodyear tire tests. I will be less surprised if it changes than if it stays the way it is"
    Stefanyshyn appeared to lend credence to those comments today (Thurs, Oct 30th), saying in a written release, "When we announced on Sept. 23 the rules package for the 2015 season, we stated that we were eliminating all team testing and would be working with Goodyear to build a unified testing plan in which the teams could participate. We currently are working through that process and have had on-going discussions with Goodyear to develop a proposal that we will share with the teams in the near future."(Godfather Motorsports)(10-31-2014)

  • Vickers tests 2015 Camry at Auto Club: Brian Vickers and the #55 Aaron's Dream Machine team at Michael Waltrip Racing got a jump on the 2015 season testing the newly unveiled 2015 Toyota Camry this week at Auto Club Speedway in Fontana, CA. Vickers on testing the 2015 Camry: "It was good to get some time behind the wheel of the 2015 Camry (on Tuesday.) We brought a lot of engineers from MWR and Toyota Racing Development to Fontana to work on the car. I don't know if you have ever been to a test, but it isn't very exciting for a race car driver. I drive for a couple of laps, tell them what I feel, then the engineers will pour over the data, make some changes and back I go out on the track. We just repeat that throughout the day. It might not be as fun as racing but testing is where we learn what the Goodyear tires, our car and engine like and don't like. I enjoy the science behind testing. The more you learn in testing the better you will be in the race. With the reduction in testing planned for next season, days like this are very valuable. So far I love what I see with the new Camry. It looks good, and drives good."(MWR)(10-30-2014)

  • NASCAR bans private testing in 2015: NASCAR announced a new rules package Tuesday that will ban all private testing in 2015, including the annual Daytona 500 test, and levy the stiffest penalty possible on any team caught conducting its own sessions. The only testing allowed next season will be sessions conducted by NASCAR or Goodyear. Any team caught testing on its own will receive a P6 penalty, the highest on NASCAR's new punishment scale. It carries a loss of 150 points, a minimum $150,000 fine and a six-week suspension for the crew chief and other crew members. "It will be a huge penalty if anyone is caught," said Steve O'Donnell, NASCAR's executive vice president and chief racing development officer.
    The three-day annual Daytona 500 test each January was as much about promoting the season-opening race as it was for teams to shake off any cobwebs from the offseason. O'Donnell said that time will now be used to send drivers on a cross-country promotional tour similar to the "Chase Across North America" that NASCAR held this month with its 16 Chase championship drivers assigned to visit various race markets.(Associated Press)(9-24-2014)

  • Teams test 2015 rules changes at Michigan UPDATE: Nine NASCAR Sprint Cup Series teams will remain at Michigan International Speedway one additional day on Monday to test aerodynamic and engine combinations for the 2015 racing season. According to NASCAR officials, the test is designed to validate extensive work done by the sanctioning body's racing development team. Gene Stefanyshyn, vice president Innovation and Racing Development for NASCAR, said two different packages featuring various changes would be tested on the 2-mile track at MIS.
    "We have a prime rules package and also will be doing a low downforce package, because some of the drivers have been very vocal," Stefanyshyn said. "They think (low downforce) is a solution ... so we're going to try one of those." The prime rules package will include the use of dive planes, a 9-inch spoiler, six-percent rear differential gear ratio, three different power levels (engine horsepower) as well as a driver adjustable track bar. Dive planes are small strips on the left and right side of the front bumper areas about halfway between the splitter and hood.
    The engine changes will vary from the current 850 horsepower to 800 and 750 hp. Stefanyshyn said those changes would be made during Monday's test through the use of different sized restrictor plates in order to gauge the effects. If it is determined that less horsepower works best with the aerodynamic changes being considered, how best to accomplish that for next season would still have to be decided.
    The test is slated to get underway at 9:00am/et with six different sessions scheduled throughout the day. Teams are expected to make single-file 15-lap runs in every other session, with double-file runs making up the remaining 15-lap sessions. Drivers scheduled to participate are: #1-Jamie McMurray, #5-Kasey Kahne, #10-Danica Patrick, #27-Paul Menard #2-Brad Keselowski, #17-Ricky Stenhouse Jr., #43-Aric Almirola, #11-Denny Hamlin, and either #15-Clint Bowyer or #55-Brian Vickers.(
    UPDATE: Just one day after Jeff Gordon grabbed the checkered flag in the Pure Michigan 400, NASCAR and teams were back testing on the two-mile Michigan International Speedway, gathering crucial data for the development of the 2015 NASCAR Sprint Cup Series rules package. Six different configurations were evaluated throughout the test. Throughout today's test, focus was on aerodynamics and power optimization. Ten teams were onsite throughout the day running through all six configurations. More than 160 laps were turned at Michigan by each team. Data will be taken back to the Research and Development Center in Concord, North Carolina to be analyzed and modeled as NASCAR finalizes its 2015 rules package for the NASCAR Sprint Cup Series.(NASCAR)(8-18-2014)

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