scottjohnson wrote:
Oh yeah, classing doesn't have much rhyme or reason, but that's just the way it is.
Scott
I disagree. The SCCA seems to do a pretty good job, IMO.
Mike's guide to understanding the classes
See which category best describes a car, then check the detailed rules to see if you fit or not.
OPEN CLASSES
Stock - only typical replacement parts allowed. Some performance parts are considered replacement parts.
SS - stupid fast sports cars
AS - fast sports cars
BS - quick sports cars
CS - newer small sports cars
DS - high performance coupes and sedans
ES - older small sports cars
FS - pony cars
GS - performance coupes and sedans
HS - slow stuff
Sure, there are a bunch of exceptions, but for the most part those exceptions are cars which don't fit into the "descriptions".
ASP, BSP, CSP, DSP, ESP, FSP - Classic "street" modifications and run on race rubber. Rules consistent.
(STS, STT), STX, STU - Modern "street" modifications and run on street tires. Different prep levels for X and U.
SM, SM2 - Essentially "run what ya brung" street cars on race tires. But there are rules.
Prepared and Mod - purpose built AX cars. Or people who cluelessly tore the interior out of their cars who get destroyed by the purpose built AX cars.
THSCC SPECIFIC CLASSES
TIR - Street Tire class - Any open class above can be run within TIR (except for ST* for reasons which will become apparent to you). But please just find a ST* class you can run in!
NOV - Novice class - Any Open class above can be run within NOV.
X - Old Pro / new "saving you from myself" class - Any Open class above can be run within X.
IMO, YMMV, etc, etc. I'm not even an autocross VP any more

_________________
Mike Whitney
whit32@gmail.com, 919-454-5445
V10, V8, V8t, I6, I6, V6, F4t, I4, I4, I4, I4, I2, 1, 1