Newb question on tires for STU. The max width is 245 which is what I'm running now on my stock spec rims. RPF1s 18x8.5 with I think a 30 offset.
I'm looking to go wider and get 18x9.5 with a 15 offset. What is the best tire for these rims?

 

Dunlop Z1 Star Specs. The top STU cars have been winning on them for the last few years. They may be on sale now @ Tirerack, before the the ZIIs come next year.

Rick

 

I'm kind of curious why they have ruled out aftermarket rear diffs or for rear diffs for this class - i mean, if there was a particular reason for why this particular mod can't be allowed? or if it is something that can be revisited- not just obviously with the evo in mind, but also for all the drivers with cars these days coming with" e-diffs" etc that just want to run a proper mechanical diff?

 

Good question. The original reason was to handicap AWD . Ended up the STi had rear bias anyways, but at the time they were considering pulling all aftermarket diffs in ST. Also the WRX was dominant in STX. Now I think enough time has passed to start asking for a rear diff allowance for AWD in STX/U. Cost can't be used as an issue since it's already allowed for 2WD.

Rick

 

that would be amazing.. but on the flip side do we have a reason why to add lsd to the STU class, outside of that it's allowed for 2wd cars?

 

A. I would cite cost savings as one issue. Some WRX guys used to have to rebuild their rear diffs multiple times a year to keep the lock up maxed out. Same could be argued for an Evo. Also a modified Evo diff is $300-500, not like a $2k+ BMW diff

B. It would simplify the rules to let all cars in the classes have the same allowance.

C. Easier path to SP or SM.

D. Minimal, if any performance advantage. It could be argued a fresh rebuilt diff with zero time, could offer the same performance of an aftermarket diff. Stis wouldn't need to use it since their stock diff is a good XXX type.

 

would be nice.. how do we get a petition like that started

 

Send in your letters...
http://www.sebscca.com/

 

+1

Very few letters are sent it. If we could five or so, we may be able to get the proposal up for membership consideration. Good timing since Tristian won STU in a M3 (saw him today).

 

Whats the latest on those boost hose clamps?!

 

im down for that.. im still not 100% sure how to approach why to add a mod to a class.. outside of that the other 2wd cars have it. i dont know what goes into their consideration when they decide to add mods, as opposed to remove mods. should we mentioned the evo 8-9 being gimped from factory for ayc? i just see very little 'pity' on their end for evos

would be great for the community if it could get done though

 

I'll just leave this here...

https://www.evolutionm.net/forums/sa...rear-bars.html

 

Please someone, buy that.. and go to ASP