Prototype X Rule Set
#27794 from Club Racing Board · Recommended to the Board · Minutes (2019-12 Fastrack)
In Sports Racing, GCR section 9.1.8., create new Prototype X Rule Set and re-letter as follows:
“E. PROTOTYPE X (PX) CLASSIFICATION
A. Purpose and Philosophy
The intent of the PX category is to allow competition of prototype vehicles that compete in road
racing in the United States.
The PX class may be subject to periodic balance of performance (BOP) changes. Weights may be
adjusted, or cars may be subject to changes in intake restrictors and other areas to meet
professional series changes. Cars may be required to carry data acquisition equipment for review
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of performance. Participants shall make available to SCCA all collected data as may be requested
from time to time.
B. Eligibility
Vehicles meeting one of the following criteria may compete in the PX category:
• Daytona Prototype Gen #1 (2003-2007):
• Daytona Prototype Gen #2 (2008-2011):
• Daytona Prototype Gen #3 (2012-2016):
• Daytona Prototype International (2017-Present):
• IMSA GTP (1981-1995)
• IMSA Camel Light (1985-1993)
• Le Mans Prototype 1 (1999-2013)
• Le Mans Prototype 2 (1999-Present)
• Le Mans Prototype 3 (2017-Present)
• Le Mans Prototype Challenge (2009-2018)
• World Sports Car (1994-1998)
• Other like vehicles as submitted to the CRB for classification on a case by case basis
C. Bodywork
1. Standard bodywork must comply with their associated specifications,
D. Aerodynamic Devices
1. Aerodynamic devices must comply with their associated specifications.
E. Interiors
1. Interiors must comply with their associated specifications.
F. Chassis
1. All chassis must comply with their associated specifications.
G. Engine
1. Engines specifications are open.
H. Fueling, Piping and Fuel Tanks
1. Fueling, piping and fuel tanks must comply with their associated specifications.
I. Exhaust System
1. Exhaust systems must comply with their associated specifications.
J. Electrical
1. Electrical systems specifications are open.
K. Drivetrain
1. Drivetrains specifications are open.
N. Suspension and Steering
1. Suspension and steering must comply with their associated specifications.
O. Brakes
1. Brakes specifications are open.
P. Tires and Wheels
1. Tires must conform to 9.3. Tires.
2. Wheels must comply with their associated specifications.”