ztrips

I've tried to make sense of the rules, but I can't seem to find where my car fits.

1992 Corvette
383 cu in LT1 (forged internals, head work, cam)
Aluminum single mass flywheel
Custom ECM tune
long tube headers, side exhaust
Vortech blower
water injection system

stock saw blades and stock size street tires. brakes and suspension are stock for now. Possible sway bar/bushing upgrade in the future.

Can someone help?? Thanks...

UberR32

IIRC, blower and motor work put you in the most prepared class available. Just look for the largest PAX number and boom, there you go.

cendres

SM2 is my guess.

Red5

Blower and over displacement puts you in EM.

cendres

Ouch. Time for someone to start looking at suspension and tires...

BrianCunningham

I thought they switched the rules in SM2 to allow that.

XPC5R

The engine mods are eligible for Street Modified 2. There is no upper displacement limit in 2007, just a 1.4 litre adder to your displacement for minimum weight calculations.

1600+ ( (displacement +1.4 for the blower) x 200 lbs/litre)

My quick math shows around 3120lbs, using 6.2L for the displacement. You should easily be over (and not a big deal at a local event)

Other things you can do in this class:

Any wheels and DOT (R) tires
Custom flares and fascias
Any bolt on suspension changes
Wings and splitters
Race seats

cendres

From the 2007 SCCA rulebook, page 178:

"Regardless of the weight formulas above, no car will be required to weigh more than 2900 lbs"

JCD

wow, I just poured over the 2007 rulebook and the FI requirements for SM2 are gone!

Now all I need is a blower, suspension, to learn how to drive, and Red5 is going down!!!

UberR32

Interesting thread. I checked the rulebook a year or two ago and decided that FI was not an option . . . will have to read the new rules.

ztrips

Well, this is very encouraging...