Dave,
I was under the impression that any tire that rubs is not allowed in the stock class, or is my interpretation of the rules incorrect?

As stated from section 13.3
G. Tires must fit the allowable wheels and fender wells without modification.

Any info on how the gentleman that drove the STi in AS @ the National Solo had his car setup?

To the OP: Ofcourse the wider the better, but I also believe that tires need to be well matched to the rim for maximum effectiveness ....

 

Ive been thinking that, but without the money to try several sizes out myself, I was looking for other opinions. should I look for square edges, like with a 245, does the extra width give enough in the right areas to make up for a slightly squishier sidewall?

 

Honestly the only way to make sure is to test the different sizes but with R-comps costing about ~$200+ a pop (depending on size) its not a cheap venture. And since most of us aren't made out of money that probably won't happen.

I understand your position. Personally I would play it safe and go with 245 width tires .... since you are barely within the recommended rim size.

 

I think that is what I'll end up going with, just to keep things easy. I guess its on to the second part of the question, are their any strong reasons to go with either hooiser or the kumho v710's? in general ive heard the hoosiers are slightly grippier, but with far less(like half) the life of the 710s. If that is the case, I'll just use the kumhos since Im in good with a local dealer.

 

Tires are allowed to rub as long is there is no visable holes in the fender well.

The STI co-driven by Jonathan Roberts had stock shocks, a 32mm hollow Strano front bar, and a cat back. I worked the course while A-stock ran. Very impressive driver. I just read the owner of the STI recently installed stock-legal Ohlins with fixed spring perches for next year. It will be an interesting battle with a couple more new 2007 cars entering A-Stock.

Good Luck!

Dave

 

FYI: In 2004, I ran 245 Hoosier's for a year in A-Stock. They lasted 32-38 runs until the edges corded. From my understanding, running the 275's on an 8" wide wheel pulls the edges inward allowing the contact to be in a better position on the tire (lasts longer). This especially helps because of the limited neg. camber.

Also, a couple of the Pontiac Solstice (sp?) drivers ran 285/35/18 on an 8" wheel in C-Stock. They placed 1st and 2nd at Solo2 Nationals this year.

Dave

 

thanks for the info Silencer. Just as I thought I had made up my mind, you throw another wrench out there. guess I'll just have to mull things over a little longer. thanks again tho

 

I've heard the similar things Jazzie604. I've heard that the Kumho and the Hoosier are equal in performance (Hoosier a little faster MAYBE) with the Kumho lasting a lot longer. Also the Kumhos V710s are supposedly fast when they are new but with time/runs they slowly loose some of their initial grip (supposedly).

Silencer: The STi is even more camber limited in the front than the EVO (not saying the EVO isn't given the body roll), so it makes sense that the edges are more rounded with wider tires to help keep the contact patch as large as possible. The thing is, if it rubs on the inner fender liner, it will eventually wear it out and make a hole. I thought the STi was more prepped then that ....
I was thinking filter, catback, front sway, high quality dampers, wide R-comps ... but seems like he was able to pull it off with just a front sway and no dampers ... insteresting

 

EDIT: duh. i need to learn to read.