Give the Kumho's a shot. The extra width can't hurt, and generally Kumho's
are known for putting the power down a little better.
This is something I've wondered; how far can we (SM) take the lessons
learned in SP. These tires and wheels are a good example. The 13 x Wide is
a no-brainer on CSP CRX's and Miatas, but we can easily exceed these tires
with the available power. Will we at some point see Miatas with
335/35/17's, because that's what is needed to put the power down? Or will
the extra size and weight of the huge rolling stock hurt the performance
more than the infinite power helps it? I dunno, just pondering.
Dave Hardy
89 SM
DILYSI Motorsports - Drive It Like You Stole It!
----- Original Message -----
From: Mike Lowe <mikelowe93@houston.rr.com>
To: <autox@autox.team.net>
Sent: Wednesday, June 05, 2002 2:11 AM
Subject: SM2 Tire Choice
> I have a turbo Miata that I run in SM2 in Houston Region and similar
> classes elsewhere. I finally killed off my 225-50-13 road-race compound
> Hoosiers. I need to get new 13" DOT racing tires. I've wandered around
> tirerack.com a lot lately. :-) I'm down to 235-45-13 new-style Kumhos or
> 225-50-13 autox-compound Hoosiers. I figure I should get them heat-cycled
> since my wheels aren't streetworthy.
> I feel that 225-45-13 Hoosiers are too short and therefore the contact
> patch orientation is bad for putting down turbo power. IIRC, that size is
> for small cars with small power (nothing wrong with that). ;-) I could
> barely put down power with the tires I had. I've seen the black stripes.
> :-) I'm soliciting advice from the collective.
> Here are some general specs on the car: It's fully streetworthy with
a
> decent alignment. The bushings could use some help. The springs are
> shorter than stock and the sways are bigger than stock. It's a piggy at
> 2400+ lbs. The turbo kit and roll bar are heavy. :-( Wheel HP is 230 on
a
> warm humid day. The autox wheels are 13 x 8 Keizers.
>
>
> Any advice is appreciated.
>
> Mike Lowe -- fully assimilated by forced induction power
> 96 Miata R (former Borg Stock drone car)
> 94 Miata FM II Turbo (resistance is futile)
>
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