SCCA classes

"Scary__goongala!" (corymagee) 10/27/2016 at 09:28 • Filed to: None

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I’m trying to determine mine. I know my NA would be in the E Street class if it was stock. But I’m sure the modifications I’ve done and will do have changed that. I don’ have any aspirations about winning the Solo championship, but I want to know where my car rightfully belongs. I haven’t found the info I’m looking for in the rule book yet.

S65 > Scary__goongala! 10/27/2016 at 09:35

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Which SCCA class would the TVR Cerbera Speed 12 fit in?

Chris_K_F drives an FR-Slow > Scary__goongala! 10/27/2016 at 09:38

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Everything you need to know about Street Class is right here: http://cdn.growassets.net/user_files/scca/downloads/000/013/600/2016-3-24_section_13_street_category_b.pdf?1458856378

What mods have you done? Most people who mod before going end up putting themselves into a Street Touring class.

Scary__goongala! > S65 10/27/2016 at 09:41

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If you can survive the drive there, I assume you automatically win.

Scary__goongala! > Chris_K_F drives an FR-Slow 10/27/2016 at 09:43

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Thanks.shorter stiffer springs, koni shocks, aftermarket rear shock mounts, +1 inch diameter wheels from stock.

jasmits > Chris_K_F drives an FR-Slow 10/27/2016 at 09:54

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My chip and catback throw me out of the street class even though my car has no business being out of street class. I get what they’re going for but an old BMW 4-cylinder with some bolt ons is still way slower than say a new, unmodified GTI. My local chapter has a non-competitive open class(called Challenge) so that’s what I usually run.  

Future next gen S2000 owner > Scary__goongala! 10/27/2016 at 09:56

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The shock mounts are going to be the tricky part. It might bump you to SM or possibly SSM.

Chris_K_F drives an FR-Slow > jasmits 10/27/2016 at 10:03

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Yeah. If you aren’t trophying, a lot of local guys won’t care if you run in a lower class if you’re open about what you’ve done.

Scary__goongala! > Future next gen S2000 owner 10/27/2016 at 10:05

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The way I read the info Chris K F linked it seems like they wont. But I swear I’ve read before that they will. My +1 inch wider tires are not allowed and I think my stainless steel brake lines may not fly either.

Justin Hughes > Chris_K_F drives an FR-Slow 10/27/2016 at 10:09

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It depends. Often that’s true, but some people say you should always follow the rules to the letter even if that makes you hopelessly noncompetitive.

When I first started autocrossing I brought a friend along with a 95 Civic DX. He bought it from a guy who buys trashed Hondas and makes good cars out of the parts, so it came with a motor from a low end Del Sol - one that never came in a Civic DX. It was nothing special, no VTEC or anything, but it wasn’t a DX motor. There was no Street Mod class at the time, so this punted him directly to D-Modified, despite absolutely no other mods and 14" all-season tires!

Chris_K_F drives an FR-Slow > Scary__goongala! 10/27/2016 at 10:10

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Yep, definitely not street. The springs kick you into Street Touring alone, unless of course they were a port installed option (which I don’t think the NA had).

Konis, assuming sport/yellows, will be Street Class legal if you swap the stock springs back on. And like Something-Clever-Here, President said, the mounts could bump you into SM.

Talk to the guys in your local chapter, and they likely won’t care about the rear shock mounts as long as you aren’t killing the competition. Swap the stock springs back on and you can probably run in ES

Chris_K_F drives an FR-Slow > Justin Hughes 10/27/2016 at 10:12

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Lol that sucks.

I will agree with that sentiment though. For the OP I’d recommend swapping the stock springs, and possibly stock rear mounts, back on if he really wants to run in ES. I’m going back to a full CS prep, but that thankfully means I can still run TRD springs! ;)

Future next gen S2000 owner > Scary__goongala! 10/27/2016 at 10:13

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Wider or diameter? You reference both. An exception can be made for larger diameter, but I’m not sure about wider.

IIRC, the determining factor will be whether or not the shock mounts changed your mounting points.

Chris_K_F drives an FR-Slow > Future next gen S2000 owner 10/27/2016 at 10:16

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+/- 1" in diameter is allowed, wider is not.

And yeah, if the rear mounts were an OE replacement he’ll probably be fine. If they changed anything from OE specs, it’s not allowed.

uofime-2 > Scary__goongala! 10/27/2016 at 10:24

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Eh, who really cares anyway. Whenever I go its just to have fun and try to beat my friends, the less serious you are about it the better in my opinion. Despite what some of the pedantic autox weenies seem to think, there really is no glory to be had from driving around in a parking lot, just a whole lot of fun.

Justin Hughes > Chris_K_F drives an FR-Slow 10/27/2016 at 10:34

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Yeah, no TRD springs for my BRZ!

On the flip side, sometimes getting punted to a higher class doesn’t matter. One of my Miatas was a demodified Street Touring car, with stuck suspension and wheels swapped back on when I bought it as a daily driver. The urethane bushings stayed, though. When I went to rallycross this car I found that urethane bushings are illegal in stock class, so I’d have to run in prepared instead, which allows lots of suspension mods, true rally gravel tires (I used my street snow tires), and a whole bunch of other mods I didn’t have.

Whatever - I was just going there to have fun. I ended up not only winning the class, but being the fastest driver in the entire RWD division!

jasmits > Chris_K_F drives an FR-Slow 10/27/2016 at 10:35

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No like it’s designed to be an open class just for people who aren’t trying to trophy and either only show up a few times a year or are just getting started. You can run whatever you want. Like one week some muscle car club was doing an autocross day so I was running against everything highly modified (for drag racing) American iron to an early 90s Accord wagon.  I like it, it’s a lot of fun and because of college I can only make the summer part of the season anyway.

Chris_K_F drives an FR-Slow > Justin Hughes 10/27/2016 at 10:37

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Nice! haha

Honestly, with the recent Street Class changes for the Twins, going to STX is the smart (albeit more expensive) move. They’re still the car in STX, but definitely won’t be the car in CS or DS. A new 86 with TRD kit (especially since it looks like the TRD 7.5" wide wheels might also be a port option) is going to be the “best” Toyobaru for Street Class.

Scary__goongala! > Future next gen S2000 owner 10/27/2016 at 10:37

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Wheels are an inch wider and bigger in diameter. The rules state larger diameter is fine but they must be the same width as standard. The shock mounts given me more suspension travel without raising the car. So I’m not exactly sure if the mounting points are higher or lower.

Chris_K_F drives an FR-Slow > jasmits 10/27/2016 at 10:39

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Ah okay, that sounds pretty cool. I can see where it’d encourage participation too, because it’s more of a come out and have fun class. While that mantra is put forth for whatever class you run in, it’s still slightly discouraging getting into one of the regular classes and seeing the top guys who’re pretty serious and killing the competition haha

Scary__goongala! > Chris_K_F drives an FR-Slow 10/27/2016 at 10:41

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Word. Though I don’t think I’ll be putting the stock springs back on haha. I don’t think I’ll be destroying the competition, I just want to be on a fair playing ground. I think it would be kinda entertaining to be in a class where I am hopelessly outgunned.

Chris_K_F drives an FR-Slow > Scary__goongala! 10/27/2016 at 10:45

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Ah okay, you’ll likely be in STR or STS, depending on the year of your car and if you have an LSD or open diff.

You might do okay in there, but you’ll definitely be running an underprepped car. Doesn’t always mean anything though. Have the right wheels/tires is almost always the most important part for being fast.

Scary__goongala! > Chris_K_F drives an FR-Slow 10/27/2016 at 10:51

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Its a 94 with a LSD. Haven’t decided on tires yet. I’d like to have a better tire, but I don’t want something with a 200 tread wear that won’t last very long.

TheTurbochargedSquirrel > Scary__goongala! 10/27/2016 at 10:56

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Clarification for wheels on my car: My car was equipped from the factory with 15x5.5 wheels. My summer tires are mounted on factory Mini 16x6.5 wheels which were a factory option but they were not equipped on my car. Does this change my class? Other than that the only mods to my car is a cheapo aftermarket intake (which looking at it now pulls me into a different class because it pulls air from the engine bay instead of the factory inlet). The car is a 2004 justaCooper. How do I tell what class I would end up in? EDIT: 2000-2013 Coopers are listed in STF. Do my mods bump me out?

Chris_K_F drives an FR-Slow > Scary__goongala! 10/27/2016 at 11:00

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It’ll be STR then. And without the “right” tires (RE71-Rs, or maybe RivalSs) you definitely won’t be in the top of the competition. I’d say don’t worry too much about being competitive in class, just go out and have fun for now. :)

Scary__goongala! > TheTurbochargedSquirrel 10/27/2016 at 11:01

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hmm I don’t think I can answer that for you. I’d say yes since they are factory wheels. But I don’t know how the rule book deals with that.

TheTurbochargedSquirrel > Scary__goongala! 10/27/2016 at 11:03

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Looking at the rules the change from 15" to 16" is fine but the 5.5" to 6.5" is not. Anyway my intake bumps me into a different class.

Scary__goongala! > Chris_K_F drives an FR-Slow 10/27/2016 at 11:10

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Gotcha. Thanks for the info.

derf > TheTurbochargedSquirrel 10/27/2016 at 11:11

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If the wheels were a factory option they’re ok for street class, but the intake will put you in street touring.

TheTurbochargedSquirrel > derf 10/27/2016 at 11:27

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So if the stock car is in STF do I stay in STF? EDIT: looks like I am good to stay in STF.

jasmits > Chris_K_F drives an FR-Slow 10/27/2016 at 11:34

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I would get my ass handed to me in Prepared where I think my car technically belongs or even Stock, mostly because of skill but also the car. No power under 3k RPM but not enough shifting skill to utilize first once I’m in second. I can’t be competitive without a lot more practice and $$, I just want to drive fast in a parking lot a few weekends a year haha.

Chris_K_F drives an FR-Slow > jasmits 10/27/2016 at 11:40

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Sounds like you found the perfect class then. haha

jasmits > Chris_K_F drives an FR-Slow 10/27/2016 at 11:49

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One day I want to throw more time into it and maybe be at least semi-competitive, just can’t happen until I’m not splitting time between home and college.

I’ve been bitten by the V8 bug lately and I have this image of a 4th-gen F body autoX/roadcourse toy. Best tool for the money? Probably not. Fun tool for the money? Totally.

derf > TheTurbochargedSquirrel 10/28/2016 at 02:22

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Correct. If you had the stock intake you’d be in Street, and the fact that the car is an ‘04 Mini would put you in HS. The intake you have puts you in Street Touring (specifically STF because Mini).

If you care about being competitive later, the Mini could actually be pretty good in HS with the intake back to stock, good rubber, and one upgraded sway bar (doing both front and rear bars would bump you out of Street). To give you an idea of the difference in handicap, if an HS car did a run in 60 sec, an STF car would need to be just over eight tenths faster to beat it.

For your first few events, it won’t be with worrying about anyway though (and if you do want to see how you would have done in street you can always take your raw time and apply the HS multiplier). Have fun dodging cones!