classing a SHO?

[HoustinoJillian]

i attended an autox in my SHO this past season, and since we weren't really sure, just stuck me in SM. i'm wondering if there's any other classes i'd fit into.

my car:
3.2 swap w/ 3.0 heads/cams
Quaife LSD installed
SHO Shop 17lb steel billet flywheel
SHO NUT 9puck fibertuff clutch with HD Pressure Plate and ceramic TOB
Godan dual core radiator, ATX coolant bottle/battery tray
SHO Shop Underdrive Pulleys
Performance Plus Y-pipe
Borla cat back
190lph Fuel pump
Pro-M 80mm MAF
Powdercoated intake manifold/valve covers
Kirked motor mounts/tranny mount
Koni adjustable struts
SHO Shop Linear springs (powdercoated blue)
Police front strut mounts
Full length subframe connectors
Aluminum "cup style" subframe bushings
26mm rear sway bar
Front and rear strut tower bars
Moog lower control arms/ball joints
Moog outter tie rod ends
96 front brake upgrade
stock brand new 95 rears
Brake bias plugs
Earl's SS brake lines
Jose's SHOrt Throw Shifter (#15 of first run)
SVT 17x&'s with Kumho ecsta SPTs

sooooo.... is there any chance i'm NOT in SM?

 

[shomesomesho]

Street Modified is it for you.

Only SM and higher classes (Prepared, Modified) allow the use of subframe connectors.

And only SM and higher allows the use of metal (aluminum) subframe bushings.

Which makes absolutely no sense at all since roll bars and roll cages are allowed even in Stock category.

I know, I know. . life isn't fair.

I suppose if you ditched the SFC's and put in a roll cage instead, and replaced the aluminum SFB's with non-metal delrane units you could take a step down to Street Prepared.

 

[HoustinoJillian]

ah ok. i though it would be something like that. Its no big deal cause i dont go that much, its more making the class fir the car than vice versa for me.

 

[PaulTAutoX]

i attended an autox in my SHO this past season, and since we weren't really sure, just stuck me in SM. i'm wondering if there's any other classes i'd fit into.

my car:
3.2 swap w/ 3.0 heads/cams

Godan dual core radiator, ATX coolant bottle/battery tray

Kirked motor mounts/tranny mount

Full length subframe connectors
Aluminum "cup style" subframe bushings

SVT 17x&'s with Kumho ecsta SPTs

sooooo.... is there any chance i'm NOT in SM?

OK, here's specifics for Street Prepared. Any mod not specifically allowed is disallowed. (I wrote an article for the SHOClub magazine on autocrossing classing, though I admit not being as familiar with the SP class rules....) ANY of these changes are not allowed in SP:
15.2.d - no additional metal in subframe bushings
15.1.c - engines/transmissions must be swapped as a unit, therefore if you want a 3.2 in a MTX car you're out of luck.
15.8.c, 15.10.e, others - other bushings such as motor mounts and suspension bushings may not have the amount of metal increased as compared to a stock bushing (same phrasing as SFB's).
Cams would have to be stock, so the 3.0 cams in the 3.2 are not a legal mod, though the engine is the problem
Hmmm, I am not sure about radiators, I think those are only unrestricted when you get to the full Prepared class, I think that an OEM type radiator is still required for SP. But that's a moot point here.
And the previously mentioned subframe connectors, those are right out in SP, Street Modified only.
Good luck - it's fun no matter what class you're in!

Oh, and this is based on the 2006 rules but I don't think there were changes in this area for 2007. The new rules are available online at:
http://www.scca.org/_FileLibrary/File/2007SoloRules.pdf

And just a comment - if you're going to get serious in either SP or SM, you gotta go for some R-type tires. I use the SPT's as my street tire and love them, but they're not going to be competitive with the very best Street Touring tires, much less the Kumho 710 or Hoosier autocross gumballs that everyone else in SP and SM are using. Some groups have a street tire class however; last time I looked Houston area autocross wasn't exactly to the SCCA classes, they had some extra categories that you'd have to ask locally about.

 

[HoustinoJillian]

yeah, i got them because they're a good tire and right now i can't afford track rims'tires. i bought the car to be my daily driver, and i like it as is, so its more of me just getting my butt whooped in SM whenever i autocross, nothing i'm too worried about (i did beat a kid in an evo the first time out, that was fun, it was his first time as well) but that time i was on slicers/ allseasons.

 

[Motoman991]

How would they know if you have a 3.2 swap in your car or 3.0 cams in a 3.2?

 

[HoustinoJillian]

well i'm not really one for keeping secrets. also if you concealed it, and someone found out you could be protested and then all your results are moot.

 

[nc89sho]

CP as long as you don't have a supa chaga... That's what i'm classed. and the 3.2 should fall under the "pre-date post-date" clause so you should still be prepared class approved. the other option is E-Mod. you probably don't want to be in that class.

 

[HoustinoJillian]

CP as long as you don't have a supa chaga... That's what i'm classed. and the 3.2 should fall under the "pre-date post-date" clause so you should still be prepared class approved. the other option is E-Mod. you probably don't want to be in that class.

even with the quaife/ alsfb's?

 

[nc89sho]

lsd's are allowed in prepared. and so are aluminum bushings (pretty sure) that's what i'm classed and i have asfbs too.

 

[somedude_001]

I am wondering this myself as far as my car class as well.

i've been racing in SM because of my ALSFB's and CF hood. but i'm concerned that i'm still in the wrong class because of my turbo.

3.2 + turbo
SFC's
ALSFB's
intrax/tokico
upgraded bars

I imagine in SM i won't have a problem with 13" brakes and 17" rims with 245 rubber on them.

I jsut want to make sure i'm in the right class. I don't like it when people walk up to me and accuse me of being in the wrong class. + it makes me feal bad.

 

[nc89sho]

I am wondering this myself as far as my car class as well.

i've been racing in SM because of my ALSFB's and CF hood. but i'm concerned that i'm still in the wrong class because of my turbo.

3.2 + turbo
SFC's
ALSFB's
intrax/tokico
upgraded bars

I imagine in SM i won't have a problem with 13" brakes and 17" rims with 245 rubber on them.

I jsut want to make sure i'm in the right class. I don't like it when people walk up to me and accuse me of being in the wrong class. + it makes me feal bad.

aftermarket turbo = SM or EM sorry. not added forced induction in prepared or streetprepared.

 

[somedude_001]

it doesn't bother me I don't run to be competitive I run because I can't afford roadcourses and I need a adrenalyn fix hahaha. street racing doesn't do anything for me anymore so now its autoX and roadcourses.

so which is it SM or EM. what would be the thing that would nudge me into EM. my car seems pretty much in accordance with SM rules. i'm not giving you a hard time I just want to be fair to other racers in my class.

 

[shomesomesho]

so which is it SM or EM. what would be the thing that would nudge me into EM. my car seems pretty much in accordance with SM rules. i'm not giving you a hard time I just want to be fair to other racers in my class.

I pretty certain you are OK in SM. I was looking at the SCCA Solo rulebook here:

2007 Solo Rulebook

In Appendix A, SM section, it says "supercharged or turbocharged versions . . . will be classified on a basis of adding 1.4 liters to the actual piston displacement."

Also look at the quick reference sheet "solo categories" on the same page. It says turbocharger and supercharger kits are welcome in SM.

So don't feel bad when the whiners complain about your turbo. Just smoke 'em on the course!

 

[nc89sho]

SM is basically "unlimited street car" so things like interiers are needed.
EM is pretty much totally unlimited and can be a fully porpose built race car. you could be in either one if you wanted. i would just look up previous races and see what the compitition looks like in both classes.

 

[somedude_001]

i'll stick with SM then because comparitively my car doesnt do very good. ok it's not the car it is the driver. the turbo doesn't help much I spin on every exit all the way to the next brakeing point. even if i lift to catch traction when i hammer down it will spin. need to lower boost for races i think.

 

[93rev2sev]

You can add class to your SHO with gold spinners and hanging some nice smelling trees from the mirror.

Sorry, I'm bored.

 

[shomesomesho]

i'll stick with SM then because comparitively my car doesnt do very good. ok it's not the car it is the driver. the turbo doesn't help much I spin on every exit all the way to the next brakeing point. even if i lift to catch traction when i hammer down it will spin. need to lower boost for races i think.

Get some R compounds. Then hold on for dear life. LOL.

Seriously, I bet your turbo car is pure sex with some good rubbers.

No pun intended. LOL.

 

[nc89sho]

yeah, and also. you may have the same problem i did. try to train yourself to "squeeze" the throttle gradually as you exit a turn. being smoother with the throttle will net you some extra traction by letting the tires reach the 100% traction mark slower. two things that would help you the most would probably be "really" good rubber and some seat time with an instructor schooled in overpowered cars.

 

[Techpriest]

Do they have a Street Touring Unlimited or Street Touring Other class?

We have a class that any car with street tires can run it. It's a great class for modified daily drivers that don't want to change their car, and don't want to buy race tires. Naturally some cars are more competitive then others, but at least tires is not as much of a factor.

Our STO class winner last year was a 74 Plymouth Volare with over 500hp. Second was a Turbo RX7. Both ran run-of-the-mill street tires.