Race Prep Miata race-only chat.
Sponsored by:
Sponsored by:

what class? ITE, ST, SPM?

Thread Tools
 
Search this Thread
 
Old 06-27-2012, 04:17 PM
  #1  
Junior Member
Thread Starter
 
gtred's Avatar
 
Join Date: Apr 2011
Location: Oregon
Posts: 301
Total Cats: 4
Default what class? ITE, ST, SPM?

What classes do you run in with your turbo miata?

SCCA will allow it in SPM and ITE. Conference has ITE, but also ST (sport touring) which calls for a hp/wt ratio of 10hp/lb. Locally, there are quite a few corvettes and porcshe 996's run in ST. How does a 250hp/2500# miata stack up with them?
gtred is offline  
Old 06-27-2012, 04:27 PM
  #2  
Elite Member
iTrader: (4)
 
Efini~FC3S's Avatar
 
Join Date: Sep 2006
Location: Charlotte, NC
Posts: 3,309
Total Cats: 98
Default

STU? The car that finished 2nd in STU last year at the runoffs was a turbo miata. I've never been to a race (not counting the 13 hour at VIR) where there were more than one or two ITE cars. Every race I go to there are a bunch of STU cars.

Are you looking to do SCCA Nationals or Regionals?
Efini~FC3S is offline  
Old 06-27-2012, 04:56 PM
  #3  
Junior Member
Thread Starter
 
gtred's Avatar
 
Join Date: Apr 2011
Location: Oregon
Posts: 301
Total Cats: 4
Default

Originally Posted by Efini~FC3S
STU? The car that finished 2nd in STU last year at the runoffs was a turbo miata. I've never been to a race (not counting the 13 hour at VIR) where there were more than one or two ITE cars. Every race I go to there are a bunch of STU cars.

Are you looking to do SCCA Nationals or Regionals?
Only Regionals.

It looked like SCCA's ST class does not allow swapping out the factory turbocharger. I replaced my OEM IHI with a Garrett. Did I read this right?
gtred is offline  
Old 06-27-2012, 06:01 PM
  #4  
Junior Member
 
Handy Man's Avatar
 
Join Date: Jun 2011
Location: Houston
Posts: 409
Total Cats: 20
Default

The GCR says aftermarket turbos will be considered on a case by case basis
Handy Man is offline  
Old 06-28-2012, 01:01 AM
  #5  
Senior Member
iTrader: (4)
 
mr_hyde's Avatar
 
Join Date: Jul 2009
Location: Seattle
Posts: 798
Total Cats: 24
Default

How about STL? Isn't the difference between STU and STL displacement? I'm curious about my '90 with the '04MSM drivetrain: It seems engine swaps between model years are OK and this engine happened to have a factory turbo bolted to it!
mr_hyde is offline  
Old 06-28-2012, 10:38 AM
  #6  
Elite Member
iTrader: (4)
 
Efini~FC3S's Avatar
 
Join Date: Sep 2006
Location: Charlotte, NC
Posts: 3,309
Total Cats: 98
Default

Turbos are not allowed in STL
Efini~FC3S is offline  
Old 06-28-2012, 11:23 AM
  #7  
Elite Member
 
bbundy's Avatar
 
Join Date: Jul 2005
Location: Anacortes, WA
Posts: 2,478
Total Cats: 144
Default

Originally Posted by Efini~FC3S
Turbos are not allowed in STL
And STU must use a specific turbo from the Mazdaspeed or a replacement from Mazdaspeed.

Bob
bbundy is offline  
Old 06-28-2012, 11:26 AM
  #8  
Elite Member
 
bbundy's Avatar
 
Join Date: Jul 2005
Location: Anacortes, WA
Posts: 2,478
Total Cats: 144
Default

Originally Posted by mr_hyde
How about STL? Isn't the difference between STU and STL displacement? I'm curious about my '90 with the '04MSM drivetrain: It seems engine swaps between model years are OK and this engine happened to have a factory turbo bolted to it!
The car that finished second at nationals was an NA with Mazdaspeed drivetrain. It has to be the mazdaspeed turbo.

Bob
bbundy is offline  
Old 06-28-2012, 02:48 PM
  #9  
Elite Member
iTrader: (4)
 
Efini~FC3S's Avatar
 
Join Date: Sep 2006
Location: Charlotte, NC
Posts: 3,309
Total Cats: 98
Default

Originally Posted by Handy Man
The GCR says aftermarket turbos will be considered on a case by case basis
I'm guessing in STU you're going to be sucking through a pretty small restrictor with any aftermarket turbo.

Heck, you can run whatever you want in ITE. Unfortunately you'll be racing no one, or turbo corvettes...
Efini~FC3S is offline  
Old 06-28-2012, 04:26 PM
  #10  
Junior Member
 
Handy Man's Avatar
 
Join Date: Jun 2011
Location: Houston
Posts: 409
Total Cats: 20
Default

To me "a case by case basis" might as well say "not allowed"

I'm not motivated enough to put up with the Secret Car Club of America's bullshit and try to get something like that approved.

However, I was motivated enough to petition to allow aftermarket hard tops in SSM... their response is actually supposed to be in next months issue of fast track.
Handy Man is offline  
Old 07-02-2012, 12:57 PM
  #11  
Junior Member
Thread Starter
 
gtred's Avatar
 
Join Date: Apr 2011
Location: Oregon
Posts: 301
Total Cats: 4
Default

After spending the first race weekend sorting the car, I think that I have found a good home for the car in SPM. This will move me out of ITE/group 4 (ground pounder v-8's) and into Group 1 where there will be plenty of pro7 mazda's and pro3 bimmers to dice with!

I think I'll stick with ITE for awhile, as I am truely all alone and have a chance to improve my racing lines, braking points without all of that traffic... except the occasional v-8 that streaks by!
gtred is offline  
Old 07-02-2012, 05:41 PM
  #12  
Junior Member
 
Handy Man's Avatar
 
Join Date: Jun 2011
Location: Houston
Posts: 409
Total Cats: 20
Default

I don't know anything about SPM... anyone in the know feel like posting a quick run down?
Handy Man is offline  
Old 07-03-2012, 02:01 PM
  #13  
Elite Member
iTrader: (4)
 
Efini~FC3S's Avatar
 
Join Date: Sep 2006
Location: Charlotte, NC
Posts: 3,309
Total Cats: 98
Default

Must be a Northwest regional only class or something, I've never heard of it.
Efini~FC3S is offline  
Old 07-04-2012, 02:17 AM
  #14  
Senior Member
iTrader: (4)
 
mr_hyde's Avatar
 
Join Date: Jul 2009
Location: Seattle
Posts: 798
Total Cats: 24
Default

SPM: Street Prepared Miata?
mr_hyde is offline  
Old 07-06-2012, 11:13 AM
  #15  
Junior Member
Thread Starter
 
gtred's Avatar
 
Join Date: Apr 2011
Location: Oregon
Posts: 301
Total Cats: 4
Default

Both SCCA and Conference allow these in a regional class.

In conference racing they class the SP series based upon displacement; SPO, SPM and SPU. The turbo'ed car gets a 1.4 x displacement hit, which places the miata in SPM.

SCCA is the same, except they call for the use of a restrictor plate.
gtred is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
ino20
Meet and Greet
13
10-02-2015 02:38 PM
Joe Perez
Current Events, News, Politics
8
09-30-2015 04:41 PM
z31maniac
Insert BS here
13
09-22-2015 02:59 PM
Neddy
Race Prep
5
09-08-2015 03:13 AM



Quick Reply: what class? ITE, ST, SPM?



All times are GMT -4. The time now is 10:32 AM.