About this event
The annual Porsche-Corvette Challenge combines a traditional autocross event with an exciting shootout style challenge.
This event is open to all Porsches and Corvettes only.
We run rain or shine.
Schedule of the event:
6:30: Early arrival – setup begins.
7:30: Normal arrival time.
8:00 – 9:00 Registration and Tech
8:00 – 9:15 Course open for walking
9:15 Driver’s meeting. Course closed for walking.
9:30: First car off
~12:00 pm – Qualifying finishes. Qualifiers for Challenge round determined
~12:30 - Challenge round begins
~1:00 - Challenge completed, cleanup and trophy presentations.
$35 for both Porsches and Corvettes*
*Only Porsches and Corvettes can be registered for this event. All other marques will have to wait for another day.
Event requirements
REQUIRED EQUIPMENT: Helmet (Snell M or SA 2000 or newer)(a limited quantity of loaner helmets are available). Seat belts. Battery tied down. Car empty of loose articles. No major leaks.
You must be 16 or older, present a valid drivers license and a current PCA membership card (to receive the PCA registration price). If you have not prepaid you do not get to preselect your run heat. Drivers under 18 must have parent or legal guardian present.
Porsche-Corvette Challenge - Official rules
CPA-PCA Car Classing 2011
Class A: Carrera GT, GT2, GT3, 991 Turbo |
Class B: 996 Turbo, 997 Turbo, 991 S, 981S |
Class C: 991, 996, 997, 993 Turbo, Boxster S, Cayman S, 981, 981C, Panamera Turbo |
Class D: 993, Boxster, Cayman, 964 Turbo, Panamera S, Cayenne Turbo |
Class E: 930 Turbo, 911 (‘78-’94) , 968, Panamera, Cayenne S |
Class F: 914, 924, 944, 928, Cayenne |
Class G: 911 (‘63-‘77), 912, Vintage Porsches |
Class N: Novice (Porsche only) |
Class O: (Other) Non-Porsches |
Class L: Ladies (Porsche only) |
For classes A-G - Classing assumes cars are completely stock. Deviations from stock will follow the upclassing rules to determine final class. Each modification to your car from stock will receive a certain number of points. If your car accrues 20 or more points you will be bumped up in class. There is no limit - a car with a high level of modifications might move up several classes.
20 thru 39 points - Up 1 Class |
60 thru 79 points - Up 3 Classes |
100 thru 119 points - Up 5 |
40 thru 59 points - Up 2 Classes |
80 thru 99 points - Up 4 Classes |
120 or more points - Up 6 |
Tires |
DOT approved tires with a treadwear rating below 140 (except as below) +10 points |
DOT approved R tires (Hoosier, Kumho v710, Kumho v700, Hankook z214) +20 |
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Non-DOT approved tires +25 |
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Wheels |
Wider than stock wheel size - any wheel 1"-2" +5 |
Wider than stock wheel size - any wheel > 2" +10 |
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Light body |
+5 points each for front fenders or rear fenders or front hood or rear hood or doors |
Engine |
Engine swap +20 |
Additional turbo or supercharger / larger than stock turbo or supercharger +20 |
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Internal engine modifications +20 |
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Intake modifications +10 |
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Exhaust modifications +10 |
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Transmission |
Non-stock axle or gear ratios +10 |
Suspension |
Non-stock springs/torsion bars +8 |
Adjustable shocks w/ shortened ride height or coilovers +8 |
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Adjustable shocks(stock spring perch height) +5 |
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Non-stock rear sway bar +5 |
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Non-stock front sway bar +5 |
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Interior |
Welded roll cage +15 |
Bolt-in roll cage or welded roll bar +10 |
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Bolt-in roll bar +5 |
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Non-stock seat(s) +5 |
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Smaller than stock diameter steering wheel +5 |
Our autocrosses are designed to be friendly competition, not an all-out assault. Competitors should be sportsmanlike in self-classing. While it is possible to prepare a car to the limits of these rules that will soundly trounce more casually prepared cars that is non-sportsmanlike behavior and those competitors who insist on stretching the spirit to win will be asked to reevaluate their self-classing. Likewise, competitors who have modified their cars extensively but without regard to autocross competitiveness, should not be surprised to be bumped into a class with faster cars.