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What SCCA category do I fit in?

Old 07-28-09, 01:51 PM
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What SCCA category do I fit in?

I need some help trying to figure out what class my car will fit in. Have a look at this brief description and let me know where I would fit in...

'89 Nissan 240sx coupe with an '88 13b TII. installed (much) bigger turbo, and engine is dry sumped.

Engine is further back in the bay than the stock firewall would allow, so a hole was cut in the firewall and an aluminum dog house was fabricated to separate the motor from the cabin. I have not modified the internals of the engine and the ports are stock (for now).

The car will have at least a roll bar that meets appendix C of the SCCA rule book, if not a more thorough cage. Engine and trans are Mazda, diff is Nissan w/ custom driveshaft connecting the two. Car has a fuel safe racing cell with bladder and foam. Car will be water injected (I would use water+alky, but not allowed in SCCA apparently!).

I don't know if I can get into "Prepared X" because the bell housing to engine block mating surface is not anywhere close to the same plane as a stock 240sx.
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Old 07-28-09, 04:05 PM
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Unless they hae changed some rules very recently there is no class to road race this car(as interesting as it sounds). I suppose if you're looking to autox they will 'create' a class for you to run in at regional events but that's about it.
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Old 07-28-09, 04:56 PM
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NASA or SCCA time trials

NASA also has the performance touring series which is just wheel to wheel racing for time trial cars.
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Old 07-28-09, 05:40 PM
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I think that since the poster is not talking about a full cage, they are not interested in wheel-to-wheel. There is probably a modified class where they could run auto-x or timetrial.

The best bet is NASA. They'll run anything .

Bottom line is to talk to your regional folks who run the auto-x you are interested in. They will have to class you.

-b
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Old 07-29-09, 02:42 PM
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Bring it to the race in Lansing August 8th & 9th. We'll figure out where to put you. I'd love to see this car in person...



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Old 07-30-09, 06:22 AM
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Thanks for all the quick feedback guys…
Kentetsu,
Unfortunately there is no way the car will be road worthy by August 8th.

We designed and built our own ECU, and while the fuel control circuit seems just fine, we have not programmed in a spark advance table yet. Also, the car has no plates yet.

We did drive it around my block with advance locked in around 15*BDC and raced my go-kart down the street. We also have a variable geometry turbo which we locked at minimum expansion so we wouldn’t make any boost. At this time the passenger had to manually control injector pulse with using a potentiometer near the passenger seat!!! We fouled the back plug by the time the race came around, so we were also running on one rotor.

With all the odds against us, the car triumphed over the 5hp go-kart…We got up to around 15mph and were quite happy!

I will come back to this thread once the car is street legal, and I will take you up on that offer.

Thanks,
Max
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Old 08-10-09, 01:17 AM
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For autocross you would run in EM.
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