i had to replace all the studs on my rx7 autocross car, and 5 so far on the
cobra, but 10 more needed soon. plus a couple handfuls of lug nuts. sticky
tires, aggressive driving, and lots of tire changing take their toll.
went to longer studs in the front of the rx7 because i needed spacers with
my autocross wheels. i was in CSP but i never checked the rules. (we were
way too slow to care about things like that then!!)
-james
OSP #74 and reigning champion :)
----- Original Message -----
From: Runnion, Ed <Ed_Runnion@regionofdoom.com>
To: <ba-autox@autox.team.net>
Sent: Friday, February 23, 2001 7:15 PM
Subject: Lugnut studs
> Check this thread....
>
> http://www.sccaforums.com/ubb/Forum7/HTML/000079.html
>
> As one of the folks racing what is pretty much THE heaviest car at SFR
> events, the above obviously concerns me! I always inspect the lugnuts
and
> studs whenever I do a tire R&R, but of course you can't be too careful.
> And being preventative here is obviously a lot cheaper (and safer!) than
> having a catastrophic failure.
>
> The current lugnuts on the car are the GM "standard" 12mmx1.5 threaded
nuts.
> Stock OEM studs in back, SLIGHTLY (but not much) better in front.
>
> I will have the axles coming out soon in back (gear swap), so that'd be
the
> obvious time to swap those. And the fronts are really easy to swap as
> well.
>
> So, with all that in mind......
>
> What are the SCCA rules (if any) in Street Prepared on going to :
>
> * Longer wheel studs
> * LARGER (i.e. 14mm, not 12mm) lugnuts
>
> Ideally, I'd like to upgrade to 14mm lugnuts and studs that are approx
1/2"
> longer (I have CLOSE to entire, but not entire, thread engagement on the
> stock lugnuts....about 10 turns worth).
>
> Anyone know????
>
> Ed Runnion Santa Clara CA
> mailto:Ed_Runnion@RegionOfDoom.com
> 96 Chevy Impala SS, ESP #984
|