<VV> CORSA Autocross Rules questions

Bryan Blackwell bryan at skiblack.com
Fri Jul 21 15:42:41 EDT 2006

Comments in line:
On Jul 21, 2006, at 12:06 PM, P.H. Raker wrote:

>      In the section on Improved Stock cars, there is a list of
> modifications each with a "point penalty".  There is no indication of a
> correlation to these "penalty" points and track time.  It seems to be
> only a system of saying what type of modifications are allowed in the
> class.  If this is true, does a car with a full 100 points worth of
> modifications compete even-up with a car that would qualify for Street
> Stock class except that it has 65 series tires?

Correct.  You're either in the class or you're not.  You're allowed up 
to 125 points, above that and you go into SM.

>      Speaking of tires, the rules say that an IS car can use "any DOT
> approved tire".  How is this interpreted in light of the many new
> DOT-approved competition tires that have become available in the last
> few years?
There is a lower limit of 140 for tread wear rating, along with some 
points based on size.  So, if you manage to find a 185/80-13 stickum go 
fast tire with a tread wear at or above 140, you're ok.  If you get 
205/60-13 tires on stock wheels, that'll cost you 20 points.  If you 
get the same size in an R compound, that's 30 more.  14 inch wheels?  
25 more for the wheels.  Steering wheel stock?  Ignition? Non-stock 
seats?  All cost points.  It doesn't take much to modify the car out of 
the class.


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