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Autocross classification help

Old 02-27-05, 07:49 AM
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Autocross classification help

I had a blast at the test and tune sessions last spring and I'm thinking about running this season in my beater. I looked at SCCA's class chart, but it brought up a few questions.

The car is a n/a fc, all stock except for the rear steer eliminator bushings, polyurethane front control arm bushings, and larger wheel/tire combo. The wheels are 16x7 which is the factory TII size and the tires are 225s vs the TII's 205s. I thought I had read that any factory availible size wheel could be run, even if it did not come on your paticular trim line/model. And any tire that fits on the rim is legal also, but I'm not sure on most of that.

So can I run E stock, if not what is it legal for? Thanks for any help you all can give.
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Old 02-27-05, 08:59 PM
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I will just give you my opinion. Take it or leave it.

The wheels need to be the same size as factory in stock classes. Update and backdate rules don't apply between a TII and an N/A because they are not in the same class to begin with.

Tires don't matter at all as long as they fit the wheel and wheel well without modification.

Poly bushings anywhere and the rear steer eliminator are not legal in stock.

To me you have two options. CSP and STS2

STS2 is not a full national class so you may not have much competition.

CSP will be hard. Especially in the area you live. The CenDiv and the regions in the division have a very good competitors in CSP. Many consistently in the top 10 at nationals.

I would try STS2. I don't know of all the rules off the top of my head but it seems that it would work.
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Old 02-28-05, 01:02 AM
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Here is a very brief over view of STS and STS-2 (which is based on STS).

Street Touring - S

If your car is a normally aspirated sedan (four seats, four factory seatbelts, not sports-car derived) of 3.1 Liters or less, or one of a few small turbocharged cars specified in the rules, and perhaps prepared further than allowed in Stock Category, it may be eligible for one of the Street Touring Classes. Street Touring - S is an SCCA National class, but Street Touring-R is an optional Regional only class. Street Touring allows anything allowed in Stock, plus (roughly) these modifications:

Any shocks, struts, and springs, using original attachment points
Any sway bars
Any wheels up to 7.5" in width that fit over stock brakes
Tires up to and including a width of 225, with a treadwear rating of 140 or greater.
Strut bars/braces as allowed in Street Prepared.
Exhaust system downstream of catalytic converter(s)
Short throw shift kits
Spoilers, body kits, rear wings, etc.
Pedal kits and other interior cosmetic accessories
Alternate brakes pads and linings
Any fully padded and upholstered front seats with reclining seat backs
Removal of factory trim (rub strips, emblems)
Alternate steering wheels of any diameter, otherwise meeting Stock rules
Cross drilled and/or slotted brake rotors
Alternate air cleaner enclosures
No limited slip differentials except factory viscous coupler type units
Stock brake calipers/drums
Fenders may not be cut or flared (but specific modifications for tires OK)
Emission-legal headers
Emission legal modifications to Engine management system, either electronic or mehanical, but not both.
Engine and transmission must remain unmodified, including emissions equipment

Street Touring - 2

This is a regional class, not a National class. Same limitations as Street Touring - S, but generally allows 2-seater sports cars cars and 2 + 2 sports-car derivatives.
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Old 02-28-05, 05:15 PM
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Thank you very much for the info guys. It looks like I'll just run for fun in this car, to much work to return to stock and to rusted out to invest in making it competitive in the other classes.

I guess it's true what they say "Choose the class you want to run in and purchase a car for that class. Don't try to choose a class for your car."
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Old 03-01-05, 02:12 AM
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Originally Posted by tinner
Thank you very much for the info guys. It looks like I'll just run for fun in this car, to much work to return to stock and to rusted out to invest in making it competitive in the other classes.

I guess it's true what they say "Choose the class you want to run in and purchase a car for that class. Don't try to choose a class for your car."
Or you can do what I did....I just purchase a prep car for E-Prepared.....then find out in 2005 you get dropped into F-Prepared. Who would've thunk....

I another option you might have in your local region is the Generic Street tire class (if they offer it), classed as CSP.

Have fun....
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