P2 at Road America

2020-12-01 P2 Balance of Performance adjustments effective 01-01-2021

#29822 from Formula/Sports Racing Committee · Rule change · TB 20-12 (2020-12 Fastrack)

In P2 Engine Table, Spec Line B.1, effective 01-01-2021 change restrictors as follows:
In P2 Engine Table, Spec Line E, effective 01-01-2021 change notes as follows:
"Group CN non-composite chassis with stock Honda K20A-FD2 must use stock Honda intake manifold with 64mm single throttle
body with 55 50mm flat plate intake restrictor at 1500 lbs. minimum weight."
In P2 Table 1, FIA Group CN non-composite chassis spec line, effective 01-01-2021 change restrictor as follows:
P2 Engine Table
Spec
Line Engine Series Max. Displ. (cc)

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

2021-03-01 P2 Add a new spec line for a 2-cycle, 3-cylinder engine up to 820cc

#30272 from Formula/Sports Racing Committee · Rule change · TB 21-03 (2021-03 Fastrack)

In P2 Engine Table, add a new spec line as follows:

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

2021-05-01 P2 E&O tonneau cover provision in cockpit opening section

#30459 from Formula/Sports Racing Committee · Rule change · TB 21-05 (2021-05 Fastrack)

In P2, GCR section 9.1.8.D.D.7.c, make changes as follows:
"Allowed equipment would include batteries, ballast, fire bottles, data recording devices, and cool suit
equipment, providing provided such equipment is securely attached to the car. Tonneau covers are allowed in order to meet
minimum dimensions."

2021-05-01 P2 Remove effective dates in Table 1

#30468 from Formula/Sports Racing Committee · Rule change · TB 21-05 (2021-05 Fastrack)

In P2 Table 1, AMAC, Asteck, Cheetah, Decker, Fox, LeGrand, Converted F5 spec line, change as follows:
"Effective 01/01/2021"
In P2 Table 1, AMAC-AM5, Fox-2-Seater, Zephyrus, Decker 1/2 spec line, change as follows:
"Effective 01/01/2021"
In P2 Table 1, FIA Group CN non-composite chassis spec line, change as follows:
"Effective 01/01/2021"

2021-05-01 P2 E&O Maximum Valves Per Cylinder

#30560 from Formula/Sports Racing Committee · Rule change · TB 21-05 (2021-05 Fastrack)

In P2 Engine Table, Spec Line B.1, add the maximum valves per cylinder as follows:
"4"
In P2 Engine Table, Spec Line B.2, add the maximum valves per cylinder as follows:
"4"
In P2 Engine Table, Spec Line B.3, add the maximum valves per cylinder as follows:
"4"

2021-08-01 P2 F5 P2 Conversion

#30856 from Club Racing Board · Rule change · TB 21-08 (2021-08 Fastrack)

In P2 Table 1, AMAC, Asteck, Cheetah, Decker, Fox, LeGrand, Converted F5 cars spec line, change the notes as follows:
"Converted F5 cars must retain suspension compliant with F5 requirements and meet all P2 non-spec line requirements except
minimum width is 55 inches."

2021-08-01 P2 Clarify minimum body width requirement

#30859 from Formula/Sports Racing Committee · Rule change · TB 21-08 (2021-08 Fastrack)

In P2, GCR section 9.1.8.D.D.3, add the following:
"The minimum body width between the front and rear wheels as viewed from above shall not extend inwards beyond a vertical
plane connecting the centerlines of the front and rear tires."
Ralt RT40, Ralt RT41, Swift 008, and Swift 014

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

2021-09-01 P2 P2 CN Engine Rebuild Clarification

#31000 from Jeff Shafer · Rule change · TB 21-09 (2021-09 Fastrack)

In P2 Engine Table, Spec Line E, change the notes as follows:
"Must use stock Honda OEM parts as listed in CN Honda K20A-FD2 Parts List found here:
https://www.scca.com/pages/technical-forms-anddownloads. No machining allowed. Balancing, porting, and polishing are
prohibited. Engine rebuilds that include valve jobs and/or cylinder honing must strictly adhere to published factory service
procedures."

2021-12-01 P2 BoP adjustment effective 1-1-22

#31538 from Formula/Sports Racing Committee · Rule change · TB 21-12 (2021-12 Fastrack)

In P2 Engine Table, Spec Line B.1, change as follows:

2021-12-01 P2 E&O clarification of "Control Area" definition

#31539 from Formula/Sports Racing Committee · Rule change · TB 21-12 (2021-12 Fastrack)

In GCR section 9.1.8.D.E, change as follows:
"This "Control Area" is located within the plan view rectangular area defined by the rear edge of the front tires, and the front
edge of the rear tires, and the entire width of the body of the car’s lower surface facing the ground, which includes but is not
limited to the floor and any extensions of the floor or aerodynamic attachments to the floor, whether fastened to the bottom or
top side of the floor. Vertical structures such as "turning vanes" or "fins" that are attached to the car anywhere within the
"Control Area" to enhance aerodynamics are prohibited."

2022-01-01 P2 E&O letter #31539 – Control Area definition

#31783 from Formula/Sports Racing Committee · Rule change · TB 22-01 (2022-01 Fastrack)

In P2, GCR section 9.1.8.D.E, change as follows:
"This "Control Area" is located within the plan view rectangular area defined by the rear edge of the front tires, the front edge of
the rear tires, and the entire width of the car's lower surface facing the ground, which includes but is not limited to the floor and
any extensions of the floor or aerodynamic attachments to the floor, whether fastened to the bottom or top side of the
floor. Vertical structures such as "turning vanes" or "fins" that are attached to the car anywhere within the "Control Area" to
enhance aerodynamics are prohibited."

2022-02-01 P2 E&O Engine section

#31969 from Formula/Sports Racing Committee · Rule change · TB 22-02 (2022-02 Fastrack)

In P2, GCR section 9.1.8.D.L.c.1, change as follows:
"SCCA approved production based motorcycle engines with a maximum of 4 cylinders and with a maximum displacement
of 1500 1505cc."
In P2, GCR section 9.1.8.D.L.d, change as follows:
"Two Stroke Engine: 2 stroke engines with a maximum displacement of 1200 1205cc and a maximum of 4 cylinders."
In P2, GCR section 9.1.8.D.L.h.1, change as follows:
"Automotive engine based cars use a minimum weight of 1300 1350 lbs. unless otherwise stated in the tables."

2022-03-01 P2 Add spec line for Beasley B2

#32147 from Formula/Sports Racing Committee · Rule change · TB 22-03 (2022-03 Fastrack)

In P2 Table 1, add a spec line as follows:
P2 Table 1 (Spec Line Cars)

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

2022-03-01 P2 E&O Table 1 spec line wing terminology

#32148 from Formula/Sports Racing Committee · Rule change · TB 22-03 (2022-03 Fastrack)

In P2 Table 1, AMAC, Asteck, Cheetah, Decker, Fox, LeGrand, Converted F5 spec line, change the notes as follows:
"Wings up to 16.5in cord chord of single or dual element;"
In P2 Table 1, AMAC-AM5, Fox-2-Seater, Zephyrus, Decker 1/2 spec line, change the notes as follows:
"Wings up to 16.5in cord chord of single or dual element;"
In P2 Table 1, Bobsy spec line, change the notes as follows:
"Wings up to 16.5in cord chord of single or dual element only;"
In P2 Table 1, Jondal spec line, change the notes as follows:
"Wings up to 16.5in cord chord of single or dual element only;"

2022-03-01 P2 E&O class name

#32196 from Formula/Sports Racing Committee · Rule change · TB 22-03 (2022-03 Fastrack)

In P2 Table 1, AMAC, Asteck, Cheetah, Decker, Fox, LeGrand, Converted F5 cars spec line, change the marque as follows:
"AMAC, Asteck, Cheetah, Decker, Fox, LeGrand, Converted F500 cars see notes"
In P2 Table 1, AMAC, Asteck, Cheetah, Decker, Fox, LeGrand, Converted F5 cars spec line, change the notes as follows:
"Converted F500 cars must retain suspension compliant with F500 requirements and meet all P2 non-spec line requirements
except minimum width is 55 inches."

2022-04-01 P2 After Market to Aftermarket

#32373 from Club Racing Board · Rule change · TB 22-04 (2022-04 Fastrack)

In F500, GCR Section 9.1.1.D.15.D., change as follows:
"Stand-alone after market aftermarket ECUs are not permitted."
In P2, GCR Section 9.1.8.F.3.a., change as follows:
"As manufactured and ground by Oldsmobile or by an after after market aftermarket cam manufacturer to Oldsmobile factory
specifications for Vin.A (W41) or Mantapart #OP 1149."
In P2, GCR Section 9.1.8.F.3.b., change as follows:
"As manufactured and ground by Oldsmobile or by an after market aftermarket cam manufacturer to Oldsmobile factory profile
Vin. D or Mantapart #OP 1148."

2022-05-01 P2 E&O Clarification of Chassis Construction Requirements

#32469 from Club Racing Board · Rule change · TB 22-05 (2022-04 Fastrack)

In P2, GCR section 9.1.8.C.A.1, add the following:
"Chassis fully composed of composite structural materials or chassis partially composed of composite materials that is not
capable of rolling on its wheels without the composite materials being installed."
In P2, GCR section 9.1.8.C.C.1, add the following:
"Allow for any form of chassis construction except fully composite chassis. A chassis partially composed of composite materials
must satisfy the requirements of section 9.4.5.A, B, C, E, F and be capable of rolling on its wheels without the composite materials
being installed."

2022-05-01 P2 Clean up P2 wording

#32525 from Formula/Sports Racing Committee · Rule change · TB 22-05 (2022-04 Fastrack)

In P2, GCR section 9.1.8.C, change as follows:
"PROTOTYPE 2 (P2) CLASSIFICATION"
In GCR CONTENTS, change as follows:
"PROTOTYPE 2 (P2) CLASSIFICATION"

2023-01-01 P2 Request to Classify Sebeco NP01

#33378 from Benjamin Cooper · Rule change · TB 23-01 (2023-01 Fastrack)

In P2 Table 1, change as follows:
P2 Table 1 (Spec Line Cars)
Marque
Wheelbase inches
max/ Track Max
inches
Weight Displacement Engine Restrictor Notes

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

2023-01-01 P2 Radical spec line clarifications

#33485 from Jeff Barrow · Rule change · TB 23-01 (2023-01 Fastrack)

In P2 Table 1, Radical SR3/SR4 spec line, make the following change:
P2 Table 1 (Spec Line Cars)

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

2023-01-01 P2 E&O original class intent

#33519 from Club Racing Board · Rule change · TB 23-01 (2023-01 Fastrack)

In P2, GCR section 9.1.8.A.1, change as follows:
"Chassis fully composed of composite structural materials or chassis partially composed of composite materials that is not
capable of rolling on its wheels without the composite materials being installed."
In P2, GCR section 9.1.8.C.C.1, change as follows:
"Allow for any form of chassis construction except fully composite chassis incorporating composite structural materials. A chassis
partially composed of composite materials must satisfy the requirements of section 9.4.5.A, B, C, E, F, and be capable of rolling
on its wheels without the composite materials being installed. Both tube frame and aluminum or steel monocoque chassis
construction are allowed.”

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

2023-01-01 P2 Update Engine Table Spec Line B.1

#33608 from Club Racing Board · Rule change · TB 23-01 (2023-01 Fastrack)

In P2 Engine Table, Spec Line B.1, change as follows:

2023-04-01 P2 Remove redundant effective date language and update engine table

#34012 from Club Racing Board · Rule change · TB 23-04 (2023-04 Fastrack)

In P2 Engine Table, Spec Line B.1, change as follows:

2023-04-01 P2 E&O - Correct dimensional equivalents

#34038 from Club Racing Board · Rule change · TB 23-04 (2023-04 Fastrack)

In P2, GCR section 9.1.8.C.D.2, change as follows:
"Height: No part of the vehicle having special or significant aerodynamic function shall exceed a height of 115cm (45.275 inches)
above the ground with the car in normal racing trim, driver aboard."
In P2, GCR section 9.1.8.C.D.3, change as follows:
"However, no portion shall extend more than 10cm (3.937 inches) beyond a plane tangent to the outer face of the front and rear
wheels with tires."
P2 Engine Table
Spec

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

2023-05-01 P2 Clarify minimum side body height requirement

#34143 from Club Racing Board · Rule change · TB 23-05 (2023-05 Fastrack)

In P2, GCR section 9.1.8.C.D.6, change as follows:
"As viewed from the side, T the outermost surface of side pods body between the front and rear wheel openings and above the
floor must have a minimum height equal to the height of the front axle centerline."

2023-05-01 P2 Clarify closed cockpit single seat car allowance

#34144 from Club Racing Board · Rule change · TB 23-05 (2023-05 Fastrack)

In P2, GCR section 9.1.8.C.C, add a section as follows:
"4. Closed cockpit single seat cars are not permitted unless specifically allowed by a spec line in Table 1."

2023-12-01 P2 Correct Table 1 for Engine Date Range Specifications

#35182 from Formula/Sports Racing Committee · Rule change · TB 23-12 (2023-09 Fastrack)

In P2 Table 1, change as follows:
P2 Table 1 (Spec Line Cars)

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

2024-01-01 P2 E&O - Clarify B.1 modified engine range in AMAC spec lines

#35225 from Club Racing Board · Rule change · TB 24-01 (2024-01 Fastrack)

In P2 Table 1, change as follows:
P2 Table 1 (Spec Line Cars)

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

2024-01-01 P2 Replacement Engine Crankcase for 07/08 Suzuki GSX-R1000 Engines

#35340 from Michael A Reupert · Rule change · TB 24-01 (2024-01 Fastrack)

In P2 Engine Table, Spec Line B.1, add to notes as follows:
"No modifications allowed on engines manufactured after 2008 model year. 2007-2008 Suzuki GSX-R1000 crankcase part
#11300-21860 may be replaced with 2016-2019 Suzuki GSX-S1000 crankcase part #11301-04840."

2024-05-01 P2 CN Spec ECU

#35835 from Bart Wolf · Rule change · TB 24-05 (2024-05 Fastrack)

In P2 Engine Table, Spec Line E, change the notes as follows:
"No engine modifications except for dry sump oil system, ECU mapping, and exhaust system the following: oil system, ECU, and
exhaust are unrestricted."

2024-05-01 P2 E&O - Correct FIA Group CN spec line notes

#35900 from Club Racing Board · Rule change · TB 24-05 (2024-05 Fastrack)

In P2 Table 1, FIA Group CN spec line, change the notes as follows:
"FIA Group CN homologated chassis, brake calipers and discs, hub carriers, and suspension components are required. V de
V European Proto Endurance Series Challenge permitted bodywork, rear diffuser, wing, wheels, and assisted
shifting are allowed. Car M must comply with all other P2 requirements. Competitors must have copies of FIA Group CN
Technical Regulations and V de V European Proto Endurance Series Challenge Sporting and Technical Regulations in their
possession and present them upon request are available here: https://www.scca.com/pages/technical-forms-and-downloads."

2024-12-01 P2 2000 cc Pinto Engine Car Weight

#37187 from Marvin Hodges · Rule change · TB 24-12 (2024-12 Fastrack)

In P2 Engine Table, Line E Note 2, add the following:
"8. Minimum weight 1335 lbs."