That might be true, but STR rarely pax's well at National events.

 

Very very true, Funny how we can win Driver of the Year locally with it in multi regions then national tours we are lucky to break the top 25%, if ever.


The point I was trying to make was maybe we are trying to fit on to big of wheels/tires and breaking things. Marcs idea of a smaller 10.5' wheel might pay off in the reliablity department.

 

Well, I submitted a letter to the SEB (#10082) requesting some provision to the rule to make our trannies/diffs more reliable or at the very least specifically allow cryo treatment for the arguments I mentioned listed earlier. If you feel the same, then please submit your letters as well so this can go under consideration. In the meantime, my diff will not be built with cryoed parts. Like I said, I'm highly doubtful this will be passed but I think it's still worth voicing out a concern that's already in our heads. The worst thing that'll happen is they say no.

 

For ProSolos do you guys plan on doing burnouts before your run?

 

I only do one on the first run. After that, it doesn't seem to help, and only increases tire temps.

 

Yeah I'm just debating if its worth it given the change of some kind of diff failure. I'm guessing we're going to have to drop the clutch at near redline on our cars to get the 315s to break loose.

 

I don't have that problem ....

I am guessing on concrete with the tires up to temp, you will be launching near redline anyway.

 

yes, I would think 0.75 seconds on average would be gained from small 275 r comp over a 255 RS3 accept in the rain of course lol. I don't have BSP cars in PHX AZ to compare, but Even locally on 35 to 40 second runs, I C miatas running the lowly Hankook C51 and C71 compound and putting 1 to 0.5 second on well prepped STR and STC cars. Locally a bunch of Miata guys started running them for fun/low cost/even competition. For the sake of conversation, the top guys are pretty even with talent and prep, if anything, on the lower side than the STR/STC driver. I'm not that STR driver either. I did okay last event. They had me by over 1 second in competition runs but then in Fun runds I brought it back to .8x on a 35 second course. If I count my fun run I Pax'd 995 overal but that's not normal. some good drivers were missing and one was co-driving another car. I'm underprepped for STR and have over 220 runs on my RS3s. A National champ, would have probably gotten another 0.5 seconds out of my car.

 

I decided on 10.5" in the front and lightened up on the offset. I went with 11" in the rear. I want more wheel clearance up front and can always wedge a bigger tire if needed. For now, I plan to run the 285 and a 10.5" wheel is plenty for that size. I should have more clearance than with a bigger wheel.

-Marc

 

285 works very well on a 10.5 in my experience.