GT1 at Virginia International Raceway

2020-01-01 GT1 Request Factory Five Daytona coupe classification

#26308 from Andrew Wickline · Rule change · TB 20-01 (2020-01 Fastrack)

In GTX - MISC., Classify and add as follows:
GTX – MISC.
Make Model Engine Restrictor
mm Weight (lbs) Notes
Factory Five Type 65
Coupe R
Ford
302/351

A specification table follows in the original; it is not shown here.

2020-01-01 GT1 Request to classify the Ford Coyote 3rd Gen OEM

#27146 from Cheyne Daggett · Rule change · TB 19-09 (2019-09 Fastrack)

Effective 01/01/2020, In GT2/ST, Ford 5.0L “Coyote” engine, add to the notes as follows:
““Boss” intake manifold permitted. Ford Coyote 3rd Gen OEM (2018-2019) Part # M-6007-M-50C
@3200lbs."

2020-01-01 GT1 Request to Adjust Transmission Penalty

#27750 from J Richard Grant · Rule change · TB 20-01 (2020-01 Fastrack)

In GT1 Specifications, section 9.1.2.D.4.b.2., make change as follows:
"Sequential shifting transmissions are permitted with a 75 50 lb. weight penalty."

2020-01-01 GT1 Request to Reduce Additional Weight for 18

#27751 from Matthew Miller · Rule change · TB 20-01 (2020-01 Fastrack)

In GT1 Specifications, section 9.1.2.D.7.a.5., make change as follows:
"For cars not specified to allow 18 inch wheels, 18 inch wheels permitted with a 100 50 pound weight
penalty."

2020-01-01 GT1 Request for Five Star Nascar Compliant Bodywork

#27756 from Tim Adolphson · Rule change · TB 20-01 (2020-01 Fastrack)

In GT1 Spec Lines, 9.1.2.c, General Motors Corporation, add the following:
"5 Star NASCAR Camaro (2018-) body allowed"

2020-02-01 GT1 Windshield Clips

#27323 from Todd Oppermann · Rule change · TB 20-02 (2020-02 Fastrack)

In GCR section 9.1.2.F.6.c.1, add as follows:
Alternatively, the bottom may be captured in a channel.
"No clips or straps are required if bonded-glass factory windshields and/or rear windows are attached to
chassis per original specifications (i.e., glass-bonding adhesive).”

2020-07-01 GT1 TA2 Gurney flap wicker clarification

#28874 from SCCA Staff · Rule change · TB 20-07 (2020-07 Fastrack)

In Appendix L TA2 Rules, clarify wording as follows:
“4.8.4.1.10.1.1: The maximum height of the wing, including end plates and wicker Gurney flap, can be
no greater than the highest point on the roof. The roof may not be altered or pushed up to increase its
height.”
“4.8.4.1.10.1.5: The wing end plates must fit within a rectangle measuring 11.00 inches long by 4.00
inches tall. All wing elements, including the wicker bill Gurney flap, must be kept within the profile of the
end plates. The endplates must be mounted parallel to the vehicle centerline, and must be
perpendicular to the ground. Endplates must be flat, with no curvature or Gurney tabs flap. “

2020-07-01 GT1 STO Gurney flap wicker clarification

#28883 from SCCA Staff · Rule change · TB 20-07 (2020-07 Fastrack)

In Appendix K, STO, clarify wording as follows:
B.2.a.: "Wings shall be a single element with a maximum chord length of 12.00 inches, including any
wicker Gurney flap."
B.2.c.: "The entire rear wing assembly, including the end plates and any wicker Gurney flap, shall be
mounted level with, or below, the peak of the roof."

2020-07-01 GT1 GT1 Gurney flap wicker clarification

#28886 from SCCA Staff · Rule change · TB 20-07 (2020-07 Fastrack)

In GT1 Specifications, section D, clarify wording as follows:
"The use of fences, end rails, Gurney lips flaps, wickerbills, or other forward facing lips or aerodynamic
devices is prohibited."
In GT1 Specifications, section E, clarify wording as follows:
"A maximum 0.50 inch Gurney tab flap is allowed at the trailing edge of the wing element."
"Endplates must be flat, with no curvature or Gurney tabs flaps. The maximum width of the entire wing
assembly (wing element, endplates, Gurney tab flap, and mounting hardware) is 72.00 inches. In
keeping in line with ˜Trans Am body work is legal in GT1”, An alternate rear wing of 12” average chord

2020-07-01 GT1 GT Gurney flap wicker clarification

#28909 from SCCA Staff · Rule change · TB 20-07 (2020-07 Fastrack)

In GT, GCR section 9.1.2.F.7.b.12., clarify Gurney flap as follows:
"D. The use of fences, end rails, Gurney flaps, wickerbills,or other forward facing lips or aerodynamic
devices is prohibited."
"E. A maximum 0.50 inch Gurney tab flap is allowed at the trailing edge of the wing element. The tab
must be mounted 90 degrees to the upper wing surface. No air may pass between the tab and the wing.
The endplates must be mounted parallel to the vehicle centerline, and must be perpendicular to the
ground. Endplates must be flat, with no curvature or Gurney tabs flaps."
"GT3: The maximum width of the entire wing assembly (wing element, endplates, Gurney tab flap and

2020-08-01 GT1 Request to Allow New Trans Am Legal Engines in GT1

#29002 from Tony Ave · Rule change · TB 20-08 (2020-08 Fastrack)

In GT1, Weight Chart for GT-1, add to chart as follows:
"Trans Am spec:
Chevrolet/GM - R07 + 50 lbs.
Ford - FR9 + 50 lbs.
Dodge - R7 + 50 lbs."

2020-09-01 GT1 GT Category Wording

#29193 from Randall Smart · Rule change · TB 20-09 (2020-09 Fastrack)

In GCR, Section 9.1.2.F.3.5., Specifications, change as follows:
"Turbocharging/supercharging is not permitted. unless listed on the spec line."

2021-08-01 GT1 Request to Update GTA Obsolete Part Numbers

#30615 from Butch Kummer · Rule change · TB 21-08 (2021-08 Fastrack)

In GCR, Section 9.1.2.G.16., change as follows:
"0-80541-1 0-80541-2"
In GCR, Section 9.1.2.G., Appendix Z 5.a. change as follows:
"0-80541-1 0-80541-2"
In GCR, TA2 Appendix B.3.4, change as follows:
"#6010 6014X"

2021-10-01 GT1 Request car classification

#31032 from Bryan Scheible · Rule change · TB 21-10 (2021-10 Fastrack)

In GT3 Engines - VOLKSWAGEN, classify Fun Cup Beetle EVO3 as follows:
GT3 Engines - VOLKSWAGON

A specification table follows in the original; it is not shown here.

2022-02-01 GT1 Wheel Widths

#31844 from Richard Grant · Rule change · TB 22-02 (2022-02 Fastrack)

In GCR, Section 9.1.2.D.7.a., change as follows:
"2. Wheels may be thirteen (13), fourteen (14), fifteen (15), or sixteen (16), seventeen (17) or eighteen (18) inches in diameter,
but all four (4) wheels shall be the same diameter. Use of eighteen (18) inches wheels must add 50 lb. weight penalty.
3. Wheels shall have a maximum width of twelve (12) inches in the front and thirteen (13) inches in the rear. 18" tires shall have
thirteen (13) in the front and fourteen (14) inches in the rear ."
SP - Tony A to consolidate response.

2022-03-01 GT1 Mercedes Benz AMG GT3 in GT1

#31883 from THOMAS HERB · Rule change · TB 22-03 (2022-03 Fastrack)

In GT1 Cars - Mercedes Benz, classify Mercedes Benz AMG GT3 as follows:
GT1 Cars – MERCEDES BENZ
Model Years Body Style Drive-

A specification table follows in the original; it is not shown here.

2022-03-01 GT1 Wheel Widths

#32205 from Club Racing Board · Rule change · TB 22-03 (2022-03 Fastrack)

In GT1, GCR section 9.1.2.D.7.a., change as follows and renumber:
"1. Wheels shall be made of steel, aluminum, magnesium, or a combination thereof. Multi-piece wheels shall utilize mechanical
fasteners (bolts, rivets, etc.) for assembly.
2. Wheels may be thirteen (13), fourteen (14), fifteen (15), sixteen (16), seventeen (17), or eighteen (18) inches in diameter, but
all four (4) wheels shall be of the same diameter. Use of eighteen (18) inches wheels must add 50 lb. weight penalty.
3. 1.Wheels shall have a maximum width of twelve (12) inches in the front and thirteen (13) inches in the rear. 18” tires shall
have thirteen (13) MAX inches in the front and fourteen (14) MAX inches in the rear."

2022-08-01 GT1 GT-1/TransAm rules simplification/modernizing

#32763 from Tony Ave · Rule change · TB 22-08 (2022-08 Fastrack)

In GT1 Category Specifications, GCR Section 9.1.2.D.8.a. add the following:
"7. Current Trans Am bodywork is allowed with a 100lb. weight penalty."

2022-09-01 GT1 Tail lights on all GT category race cars.

#32799 from John Mills · Rule change · TB 22-09 (2022-09 Fastrack)

In GT, GCR Section 9.1.2.F.7.a.6:
"Glass and/or plastic headlights, front parking lights, front signal lights, lenses, and bulbs shall be removed. Headlight openings
shall be covered with a wire mesh screen or panel having the same contour as the original lens, mounted so that the headlight
bezel/rim remains in place, maintaining the standard appearance of the Production automobile. Side marker light assemblies
shall be removed and the resulting openings covered with a plate whose dimensions do not exceed those of the original parts;
side marker lights that are an integral part of the taillight assembly cannot be removed. Other lighting parts and operating
mechanisms may be removed. In the case of pop-up headlights, the entire assembly may be removed and the opening covered
with a screen or plate (as above, without the headlight bezel/rim requirement) which provides a stock appearance. It is not