[s-cars] How about some wheels?

[LL - NY]

Nick,

SCCA stock rules limit offset changes to 1/4 inch. 

Also, note rim widths are limited to as supplied by the manufacturer
for the year of the car. So, if your car is a 95.5 which came with
Avus', you're actually stuck with 16 x 7.5 if you are totally within
the rules. Fortunately, if it's a 95 or earlier, you can run 16 x 8's,
and if an UrS4, you must run with 8's.

Also see my previous post as to how rules are enforced (gets hard when
the car is
at LEAST 10 years old).

You will STRONGLY want to consider running DOT race rubber, as the
hard transitions of Autocross tends to be tough on street tires, which
try to keep
some semblance of ride quality. R-rubber tends to have stiffer sidewalls, which
will be badly needed for the the rolly-polly Miss Piggy, especially if
she's stock.
Have those tires shaved (the heavier the car, the more shaving is
needed) and heat treating, such as Tire Rack offers) will help with
tire life. Believe it or not, shaved tires will help them last much
longer in competition conditions, as the chunking and
overheating of tread blocks that would likely occur if you run full
tread depth will rapidly destroy the tires. When ordering tires, it
wouldn't hurt to talk to both competitors whom have run a similar car
(such as on the list) but the tire place you get the tires from, IF
they have competition experience.

As an aside, the S-car is fighting an uphill battle in just about any
SCCA Solo 2 class it's placed in (stock or Street Prep, don't know if
there are any Street Touring classes that will allow it) without
making it unstreetable. It's just large enough, and heavy enough that
the constant transitions of Autocross really work against it. Go, have
fun, learn to drive well, but try not to have too high aspirations, or
you'll likely be disappointed.

LL - NY, former SNYR SCCA Regional Exec.


On Fri, 18 Mar 2005 10:03:46 -0500, Taka Mizutani <t44tqtro at gmail.com> wrote:
> Nick-
> Are you talking about SCCA autox? If so, stock class would dictate
> that you pretty much really keep the car stock.
> 
> You can't run different size wheels, even offset limitations are
> pretty small- 0.5" max I think?
> 
> Then again, is it really that important? Running in G Stock with a
> S4/S6 won't get you in the points running in a decent size region.
> Might be more fun running STX or SM unless you're planning on really
> not doing anything to the car.
> 
> Taka
> 
> 
> On Fri, 18 Mar 2005 09:54:22 -0500, Nick Stuart <baredok at gmail.com> wrote:
> > Its not about being able to run, as I could with any size wheel, but
> > if you change the wheel size, you also change what class you run in.
> > Since I'm not planning on doing any other upgrades (read as "breaking
> > stuff") it would be silly to be bumped out of stock class for changing
> > my tires.
> >
> > On Thu, 17 Mar 2005 18:50:08 -0800 (PST), lee at wheelman.com
> > <lee at wheelman.com> wrote:
> > >
> > >
> > > On Thu Mar 17 05:30:40 PST 2005, Nick Stuart <baredok at gmail.com>
> > > wrote:
> > >
> > > > Ah, I got ya now, makes sense then. The problem is that I've got
> > > > a set
> > > > of new 225 16 all seasons that I would obviously like to keep,
> > > > and
> > > > want a second set for AutoX that will keep me stock, hence the
> > > > need
> > > > for 16's. I'll take a look at rules for our club more closely to
> > > > see
> > > > exactly whats allowed, but I think I need to keep the same
> > > > diameter
> > > > rim.
> > >
> > > I ran 17" rims with both the local BMW and Porsche clubs. No
> > > problem.
> > >
> > > Lee
> > >
> > >
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