The way I read it, since you're allowed to change timing and fuel maps, you should be allowed to change the rev limiter. A question I have is what's a "safe" limit for factory cams and springs? I've heard 7,800 is decent.

 

trying to see whats the best setup for 2010... anyone have the rules? really dont want to bump myself to another class.

 

mr. happy- It is surely legal for ST/STS, and I believe the rule for STU is the same.

blkmkIII- Perhaps look at these for STU tires, although a 245 would be the better tire of choice for STU.

 

Currently, the best setup is mostly what the best setup was for 2009. No major rule changes in general. If you need a copy of the rules (for 2009 at least) they can be downloaded from the SCCA's website.

 

Yes. It is legal to alter to the rev limit. 7800 is about as high as you want for several reasons.

1) power has already fallen off on the stock turbo
2) on 245/40/17 tires, you can get into the low/mid 60 mph range which is typical for a nationals course.

d

 

Good to know, thanks

 

Question for you guys... any of you run Nitto NT-01's or NT-05's (I'm not sure if there legal in STU, I run BSP) and have feedback on how well they hold up over the course of a season?

I'm trying to decide which tire to use this year, I do drive the car on the street at times but its not my DD. I plan on attending most (if not all) the regional events and a track day here and there. I don't know if I want to just get the Dunlops or try the Nitto's...? I know the Dunlops will be better for driving on regular roads, but I would imagine the Nitto's have more ultimate grip.

Thoughts?

 

The NT-01 isn't legal for STU--it's an R comp.

The NT-05 isn't available in 245/40/17.

 

^ Yeah, I know all that... I was wondering if any of you have experience with either tire though? I did say I run BSP, I realize there is no BSP thread, so I thought I would ask anyways. Just because you run STU doesn't mean you don't know anything about either one.

 

NT01>Dunlop SS>NT05

NT01 is not a very good R-comp for autox, and from what I've seen it's ok for track. Not great, or good, just ok. It is better on the street than a Kuhmo V710/Hoosier A6. NT05 is a street tire and the best way to tell what the hot street tires are is to look at what the winning ST* cars were on last year at nationals.

If you're serious about BSP, find a used set of Kuhmo, Hoosier, or Hankook slicks and run those. If you're just in it for the fun and learning this year then pick up a set of the Star Specs and run those all year at all events

 

The NT05 isn't great for autocross (skinnier for the same nominal size, doesn't have as much cold grip, harder compound vs. a star spec).

However, the NT-05 is better for the track. Stiffer sidewall, better heat handling characteristics, etc.

If you want to be competitive in BSP at a national level, you need to buy 285/30/18 Hoosier A6's.

 

Thanks for insight Mr Happy. I'm pretty set on getting the StarSpecs, just thought I would ask some others for a little insight on the Nitto's. I know the Dunlops rule autox now, just thought I would look into something different incase I could could get a leg up. I'm not ready for a full blown R-Comp as I still want to drive the car on the street.

Thanks again.

 

Not looking to go that far with it, not this year atleast. I'm on 17's also, I know the 285/30/18 is the size of choice for the A6's, but I still want a treaded tire. Thanks for the help goofy.

 

Don't count out the AD08 for a competitive (winning) STU tire.

 

Between the AD08 and the RE-11, I would probably pick the AD08. Both are within a few bucks, and both are shown to be wide and very sticky. I think more people picked the RE-11 for the contingency, but since it's technically my wifes autox car I'm not to worried about that just yet.

I can't really say much since I'm only giving her older hankook rs-2's for her first year