1 2 3
CarKid1989
CarKid1989 HalfDork
7/16/10 11:55 p.m.

What are all allowable classes a Miata can run in according to SCCA rulling. Im tryin to see what crazy shenanigans i can get my 1994 Miata into.

Isn't one class with no windshield needed?

But what can they run in? photo examples are helpful too. (im currenty looking at the SCCA book)

Looks like:

  • E-Stock (ES) -Street Touring Class S (STS)
  • Street Touring R (STR)
  • Street Prepared Class C (CSP)
  • Street prepared Class D (DSP) [spec miata clones]
  • Class Street Modified (SM)
  • Class Super Street Modified (SSM)
  • Prepared Class X (XP) Prepared Class D (DP)
Tom Heath
Tom Heath Webmaster
7/17/10 1:05 a.m.

I think you've covered the high points. E modified (or is it d mod?) would cover V8 swaps as well.

I'll post some pics when I'm not using my iPhone. SSM is my favorite, but I'm biased.

z31maniac
z31maniac Dork
7/17/10 1:56 a.m.

I think XP allows windshield removal. But it's late, I've had a few adult beverages so I'm not sure.

Platinum90
Platinum90 SuperDork
7/17/10 6:36 a.m.

all prepared classes allow removal of windshields. If the car in question is a convertible, you may remove the windshield AND the windshield frame, provided there is adequate rollover protection in the form of a 4 point roll bar.

Platinum90
Platinum90 SuperDork
7/17/10 6:38 a.m.
Tom Heath wrote: I think you've covered the high points. E modified (or is it d mod?) would cover V8 swaps as well. I'll post some pics when I'm not using my iPhone. SSM is my favorite, but I'm biased.

A V8 swap would probably be better served in XP. As long as it fits in the engine bay without modifying the firewall, you can swap it!

P71
P71 GRM+ Memberand SuperDork
7/17/10 10:07 a.m.

Not legal for SM, just SSM.

CarKid1989
CarKid1989 HalfDork
7/17/10 12:20 p.m.

im eying up CSP.

I hate reading the technical writing of the SCCA rulebook. if there a watered down easier to read do/ dont list for what you can cant do with CSP?

XP is still in the back of my mind though

Tom Heath
Tom Heath Webmaster
7/17/10 12:24 p.m.

The issue of GRM that we're working on now will contain perhaps the ultimate formula for building a CSP car.

Seriously, it's pretty incredible. The term "no stone left unturned" comes to mind.

CarKid1989
CarKid1989 HalfDork
7/17/10 1:00 p.m.
Tom Heath wrote: The issue of GRM that we're working on now will contain perhaps the ultimate formula for building a CSP car. Seriously, it's pretty incredible. The term "no stone left unturned" comes to mind.

You guys might just be the coolest people in the world, partially because your mind readers and partially because the content and extent of your work.

Amazing

wbjones
wbjones Dork
7/17/10 1:39 p.m.

I haven't researched it, but I think some of the earlier models run in some other Stock class...

CarKid1989
CarKid1989 HalfDork
7/17/10 4:10 p.m.

also

what class does a stripped out miata run in? (with suspension wheel/tire mods, minor engine mods but no FI)

P71
P71 GRM+ Memberand SuperDork
7/18/10 12:07 a.m.

Pull the interior, and you are in Prepared, period.

CarKid1989
CarKid1989 HalfDork
7/18/10 1:06 a.m.
P71 wrote: Pull the interior, and you are in Prepared, period.

CSP prepared?

If so sa-weet!

P71
P71 GRM+ Memberand SuperDork
7/18/10 1:07 a.m.

SP = Street Prepared, which is NOT Prepared.

Miata + Gutted interior = DP

grafmiata
grafmiata Dork
7/18/10 3:49 a.m.

So what about Miata + gutted interior + turbo? X-Prepared?

Just wondering where The Atomic Hairball will end up when it's done.

P71
P71 GRM+ Memberand SuperDork
7/18/10 10:11 a.m.

XP is the catch-all. You can only add forced induction for Modified (SSM). If you keep the interior you can run SSM and have a chance. In XP you will have your doors kicked in. Our local XP cars include an 11-second LS1-swapped widebody FC and a Nationals-trophying 914-6 race car. No Miata, boosted or not, has gotten remotely close to the times those two cars put down.

Keith
Keith GRM+ Memberand SuperDork
7/18/10 1:37 p.m.
Tom Heath wrote: The issue of GRM that we're working on now will contain perhaps the ultimate formula for building a CSP car. Seriously, it's pretty incredible. The term "no stone left unturned" comes to mind.

He's not kidding. We've worked on the car and I've had the chance to talk to the owner fairly extensively about what he's done. The brakes alone are worth an article.

CarKid1989
CarKid1989 HalfDork
7/20/10 10:31 p.m.

ok. i need major help here haha.

Looking at CSP and DP or was it DSP.

I dunno and have read the book so much im getting myself confused now.

My plan was stripped interior, wheels/ tires (R-comps most likely) leave the engine alone mostly (intake, timing mods) throw in a kirkey and harness.

Where does that fit?

Platinum90
Platinum90 SuperDork
7/20/10 10:49 p.m.

if you are going to prepared class, it may be beneficial to run full slicks. they are worth a couple tenths over DOT R's in most situations, but the R's are gaining on the slicks.

oldsaw
oldsaw Dork
7/20/10 11:13 p.m.
CarKid1989 wrote: ok. i need major help here haha. Looking at CSP and DP or was it DSP. I dunno and have read the book so much im getting myself confused now. My plan was stripped interior, wheels/ tires (R-comps most likely) leave the engine alone mostly (intake, timing mods) throw in a kirkey and harness. Where does that fit?

A stripped interior takes you out of any Street Prepared (SP) class. You're looking directly at Prepared and a required roll-bar.

P71
P71 GRM+ Memberand SuperDork
7/21/10 12:21 a.m.

Once again (read above posts from days ago) a stripped interior puts you in Prepared, period. Prepared also requires roll bars, allows full slicks, and has nearly unlimited mods. You will be destroyed by anything and everything.

Leave the interior in, get an ST tire (Star Spec, Rt615K, RE11), and run STR (since you have a Torsen). You can upgrade brake pads/rotors/lines, intake up to throttle inlet, header, cat, cat-back, ECU tune, pulleys, roll bar, sway bars, springs/shocks/mounts/traction devices, and even add some aero.

Soma007
Soma007 Reader
7/21/10 7:22 a.m.
P71 wrote: Leave the interior in, get an ST tire (Star Spec, Rt615K, RE11), and run STR (since you have a Torsen). You can upgrade brake pads/rotors/lines, intake up to throttle inlet, header, cat, cat-back, ECU tune, pulleys, roll bar, sway bars, springs/shocks/mounts/traction devices, and even add some aero.

Or throw some DOT-R tires on the stock wheels, add a front swaybar and have a very competative ES car? Running STR in an NA is pretty pointless IMO. An S2000 or NC with a half decent driver behind the wheel is going to slaughter an NA no matter much $$$ you throw at it.

Ian F
Ian F Dork
7/21/10 8:36 a.m.

Later NB and NC Miatas run in C-stock.

We have a couple of reasonably well prepped CSP Miatas in our region.

IMHO, if you want to be competitive, run in ES or CSP. If you don't care and just want to play with the car, SSM (add boost) might be fun. IIRC, a car built to Spec Miata rules is in D-Prepared (there is a specific comment about them).

Keith
Keith GRM+ Memberand SuperDork
7/21/10 9:54 a.m.

If you don't care and just want to play with the car, don't pay any attention to classes at all. Build a fun car and just run it.

CarKid1989
CarKid1989 HalfDork
7/21/10 9:55 a.m.

these are the classes im considering in this order:

-STR (need to research more but i like the rules so far)

-CSP (I know the local guys who run it and i think i could definitely hang with them time wise.)

-ES (but wowwww what a limited and boring class )

1 2 3

You'll need to log in to post.

Our Preferred Partners
GYK8gCzSvelzEKyqUlk7DCpj1oJwLaZZInfB5LTKjYjgaxKbQXp0iowQxAxvi9d9