RESTRICTOR PLATE HISTORY CHART


Date

Track

Plate Size

Pole Winner

Pole Speed

Winner

Notes

Feb-87

Daytona

none

Bill Elliott

210.364

Bill Elliott

no restrictions

May-87

Talladega

none

Bill Elliott

212.809

Davey Allison

no restrictions

Jul-87

Daytona

none

Davey Allison

198.085

Bobby Allison

A 390 CFM carburetor was used

Jul-87

Talladega

none

Bill Elliott

203.827

Bill Elliott

A 390 CFM carburetor was used

Feb-88

Daytona

1 inch

Ken Schrader

193.823

Bobby Allison

First Use of a restrictor plate

Apr-88

Talladega

1 inch

Davey Allison

198.969

Phil Parsons

 

Jul-88

Daytona

1 inch

Darrell Waltrip

193.819

Bill Elliott

 

Jul-88

Talladega

1 inch

Darrell Waltrip

196.274

Ken Schrader

 

Feb-89

Daytona

1 inch

Ken Schrader

196.996

Darrell Waltrip

 

May-89

Talladega

15/16 inches

Mark Martin

193.061

Davey Allison

 

Jul-89

Daytona

15/16 inches

Mark Martin

191.861

Davey Allison

 

Jul-89

Talladega

15/16 inches

Mark Martin

194.800

Terry Labonte

 

Feb-90

Daytona

15/16 inches

Ken Schrader

196.515

Derrike Cope

 

May-90

Talladega

15/16 inches

Bill Elliott

199.388

Dale Earnhardt

 

Jul-90

Daytona

15/16 inches

Greg Sacks

195.533

Dale Earnhardt

 

Jul-90

Talladega

29/32 inches

Dale Earnhardt

192.513

Dale Earnhardt

 

Feb-91

Daytona

29/32 inches

Davey Allison

195.955

Ernie Irvan

 

May-91

Talladega

7/8 inches

Ernie Irvan

195.186

Harry Gant

 

Jul-91

Daytona

7/8 inches

Sterling Marlin

190.331

Bill Elliott

 

Jul-91

Talladega

7/8 inches

Sterling Marlin

192.085

Dale Earnhardt

 

Feb-92

Daytona

7/8 inches

Sterling Marlin

192.213

Davey Allison

35 degree spoiler was used

May-92

Talladega

7/8 inches

Ernie Irvan

192.831

Davey Allison

 

Jul-92

Daytona

7/8 inches

Sterling Marlin

189.366

Ernie Irvan

45 degree spoiler was used

Jul-92

Talladega

7/8 inches

Sterling Marlin

190.586

Ernie Irvan

 

Feb-93

Daytona

7/8 inches

Kyle Petty

189.426

Dale Jarrett

 

May-93

Talladega

7/8 inches

Dale Earnhardt

192.355

Ernie Irvan

 

Jul-93

Daytona

7/8 inches

Ernie Irvan

190.327

Dale Earnhardt

 

Jul-93

Talladega

7/8 inches

Bill Elliott

192.397

Dale Earnhardt

 

Feb-94

Daytona

7/8 inches

Loy Allen

190.158

Sterling Marlin

 

May-94

Talladega

7/8 inches

Ernie Irvan

193.298

Dale Earnhardt

 

Jul-94

Daytona

7/8 inches

Dale Earnhardt

191.339

Jimmy Spencer

 

Jul-94

Talladega

7/8 inches

Dale Earnhardt

193.470

Jimmy Spencer

 

Feb-95

Daytona

7/8 inches

Dale Jarrett

196.498

Sterling Marlin

 

Apr-95

Talladega

7/8 inches

Terry Labonte

196.532

Mark Martin

 

Jul-95

Daytona

7/8 inches

Dale Earnhardt

191.355

Jeff Gordon

 

Jul-95

Talladega

7/8 inches

Sterling Marlin

194.212

Sterling Marlin

 

Feb-96

Daytona

29/32 inches

Dale Earnhardt

189.510

Dale Jarrett

14:1 compression ratio

Apr-96

Talladega

29/32 inches

Ernie Irvan

192.855

Sterling Marlin

 

Jul-96

Daytona

29/32 inches

Jeff Gordon

188.869

Sterling Marlin

 

Jul-96

Talladega

29/32 inches

Jeremy Mayfield

192.370

Jeff Gordon

 

Feb-97

Daytona

29/32 inches

Mike Skinner

189.813

Jeff Gordon

 

May-97

Talladega(a)

29/32 inches

John Andretti

193.627

Mark Martin

 

Jul-97

Daytona

29/32 inches

Mike Skinner

189.777

John Andretti

 

Oct-97

Talladega

29/32 inches

Ernie Irvan

193.271

Terry Labonte

 

Feb-98

Daytona

29/32 inches

Bobby Labonte

192.415

Dale Earnhardt

12:5 to 1 compression ratio

Apr-98

Talladega

29/32 inches

Bobby Labonte

195.728

Bobby Labonte

 

Oct-98

Talladega

29/32 inches

Ken Schrader

196.153

Dale Jarrett

 

Oct-98

Daytona(b)

29/32 inches

Bobby Labonte

193.611

Jeff Gordon

 

Feb-99

Daytona

29/32 inches

Jeff Gordon

195.067

Jeff Gordon

 

Apr-99

Talladega

29/32 inches

Ken Schrader

197.765

Dale Earnhardt

 

Jul-99

Daytona

29/32 inches

Joe Nemechek

194.860

Dale Jarrett

 

Oct-99

Talladega

29/32 inches

Joe Nemechek

193.331

Dale Earnhardt

 

Feb-00

Daytona

29/32 inches

Dale Jarrett

191.091

Dale Jarrett

NASCAR issued front and rear shocks required; minimum rear spring rate of 345 pounds

Apr-00

Talladega

7/8 inches

Jeremy Mayfield

186.969

Jeff Gordon

Restrictions on front shocks removed

Jul-00

Daytona

7/8 inches

Dale Jarrett

187.547

Jeff Burton

 

Sep-00

New Hampshire

1 inch

Bobby Labonte

127.632

Jeff Burton

Used to slow cars down, in response to deaths of Irwin and Petty. Track Record is 132.089mph

Oct-00

Talladega

15/16 inches

Joe Nemechek

190.279

Dale Earnhardt

To give some power back to the drivers, aerodynamics used to slow down the cars. aero changes: 1) rear spoiler angle from 45deg to 70deg, with a 1in, forward-facing flange at top of spoiler; 2) front air dam of 4in up from 3.5in; 3) addition of a roof spoiler, 1 3/8in high by 40in wide, 10 inches behind the top of the windshield. 4) Fords and Pontiacs rear spoilers 59in wide, up from 57, Chevy stays at 57in.  On Sat Oct 14th before Happy Hour Practice, NASCAR changed the plates to a 15/16th inch plate as practice speeds were too high

Feb-01

Daytona

15/16 inches

Bill Elliott

183.565

Michael Waltrip

Same package as Talladega in Oct 2000, Dale Earnhardt killed in accident during race

Apr-01

Talladega

15/16 inches

Stacy Compton

184.621

Bobby Hamilton

Same Package as Daytona 01 and Talladega last July.  Ford was allowed 2 less inches of spoiler width.  Race had NO cautions.

July-01

Daytona

15/16 inches

Sterling Marlin

183.778

Dale Earnhardt Jr

Same package as Talladega, no changes

Oct-01

Talladega

15/16 inches

Stacy Compton

185.240

Dale Earnhardt Jr

Ford teams rear spoilers reduced from 57 inches to 55½ inches.  Pontiac reduction on the size of the roof blade, trimmed one-eighth of an inch to 1¼ inches. Ford, Chevy and Dodge will continue to use 1 3/8-inch blades

Feb-02

Daytona

7/8 inches

Jimmie Johnson

185.831

Ward Burton

Spoiler package 55-degree spoiler angle rather than the 70-degree spoiler angle  used at Talladega in 2001.  Spoiler maximum width of 57”. Spoiler heights as follow: Chevy and Dodge 6 1/4”, Ford 5 3/4”, and Pontiac 6 1/2“. The size of the restrictor-plate is 7/8". The roof air deflectors and forward-facing flange on top of the spoiler used during restrictor plate races since last October will be removed.

Apr-02

Talladega

7/8 inches

Jimmie Johnson

186.532

Dale Earnhardt Jr

NASCAR announced a ¼-inch increase for the rear spoiler height on the Ford Taurus to be used in the Talladega 500 at Talladega Superspeedway.  Measurements for the rear spoilers on the Ford Taurus will now read at 6 inches tall by 57 inches wide.  The Chevrolet and Dodge teams rear spoiler will remain at 6 ¼ inches tall, while the Pontiac teams will measure at 6 ½ inches tall by 57 inches wide. ALSO: the one engine rule in effect.

July-02

Daytona

7/8 inches

Kevin Harvick

185.041

Michael Waltrip

Officials also reduced the spoiler size on the Ford Taurus from 6 inches to 5-7/8 inches for the 2002 Pepsi 400 at Daytona.  During the Daytona 500 in February, the Ford's rear spoiler was 5 ¾ inches tall and in April at Talladega, Ford's measurements were 6 inches tall. The Chevrolet and Dodge teams rear spoiler will remain at 6 ¼ inches tall, while the Pontiac teams will measure at 6 ½ inches tall by 57 inches wide

Oct-02

Talladega

7/8 inches

Jimmie Johnson

Points/rain

Dale Earnhardt Jr

Same as Daytona 7/2002 and smaller fuel-box size will be reduced to 20 by 17 by 9.75, giving a capacity of 12.5gal.

Feb-03

Daytona

7/8 inches

Jeff Green

186.606

Michael Waltrip

Using smaller fuel-box.  All manufacturers will have the same 1.5-inch nose "kickout," or the extension of the front air dam below the bumper.  All four makes, which have to mount their bodies on the same reference point, will also use the identical rear spoiler package -- 6.25” high by 57” wide at a 55-degree angle.  Have heard nothing about changes in the restrictor plate size.  Also total rear weight of the right rear and the left rear to not exceed 50-percent of a car's minimum weight.

Apr-03

Talladega

7/8 inches

Jeremy Mayfield

186.489

Dale Earnhardt Jr

Rules same as Daytona: Those rules (for 2003 model cars): rear spoilers must by 6¼ inches tall and 57 inches wide; rear spoiler angles must be minimum of 55 degrees and maximum of 65 degrees; restrictor plate openings must be 7/8 inch. There is one slight modification: rear spoilers must have a minimum thickness of 3/16 inch. Also, the approximate 13.5-gallon fuel cell will again be used

July-03

Daytona

7/8 inches

Steve Park

184.752

Greg Biffle

Same rules as Daytona 500 and Talladega AND added a rear roof air deflector to the left side of the rear window

Sept-03

Talladega

29/32

Elliott Sadler

189.943

Michael Waltrip

Increase the height of the rear spoilers from 6 1/4” to 6 3/4”, 57 inches wide; open the restrictor plate from 7/8” to  29/32”

Feb-04

Daytona 500

29/32

Greg Biffle

188.387

Dale Earnhardt Jr.

Same as Talladega in Sept 2003

Apr-04

Talladega

29/32

Ricky Rudd

191.180

Jeff Gordon

Same as Talladega in Sept 2003

July-04

Daytona

29/32

Jeff Gordon

188.660

Jeff Gordon

Same as Talladega in Sept 2003

Oct-04

Talladega

29/32

Joe Nemechek

190.749

Dale Earnhardt Jr.

NASCAR hands out 375lb rear springs that are mandatory

Feb-05

Daytona 500

57/64

Dale Jarrett

188.312

Jeff Gordon

Restrictor plate down 1/64”, spoilers at 55 degrees, same spring rule.

Apr-05

Talladega

57/64

Kevin Harvick

189.804

Jeff Gordon

Same as Daytona

July-05

Daytona

57/64

Tony Stewart

185.582

Tony Stewart

Same as Talladega in April

Oct-05

Talladega

57/64

Elliott Sadler

189.260

Dale Jarrett

Same as Daytona in July

Feb-06

Daytona 500

57/64

Jeff Burton

189.151

Jimme Johnson

Same as Talladega in Oct

May-06

Talladega

57/64

Elliott Sadler

188.511

Jimmie Johnson

Same as Daytona in Feb

July-06

Daytona

57/64

Boris Said

186.143

Tony Stewart

Same as Talladega in May

Oct-06

Talladega

7/8

David Gilliland 

191.712 

Brian Vickers 

After practice speeds on the new surface were over 198mph, NASCAR dropped the plate size from 57/64 to 7/8

Feb-07

Daytona 500

7/8

David Gilliland

186.320

Kevin Harvick

Same as Talladega

Apr-07

Talladega

7/8

Jeff Gordon

192.069

Jeff Gordon

Same as Daytona

July-07

Daytona

7/8

Jeff Gordon

Points/rain

Jamie McMurray

Same as Talladega

Oct-07

Talladega

31/32

Michael Waltrip

189.070

Jeff Gordon

First for the COT car, plate size opened a tad

Feb-08

Daytona 500

31/32

Jimmie Johnson

187.075

Ryan Newman

Same as Talladega in Oct 2007

Apr-08

Talladega

15/16

 

 

 

Plate size dropped to 15/16ths of an inch

July-08

Daytona

 

 

 

 

 

Oct-08

Talladega

 

 

 

 

 

 

 

 

 

 

 

 

(a) rain delayed 2 weeks

 

 

 

(b) wildfires postponed race from July 1998

 

 

 

 

 

 

 

 

 

 


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