[Supras] 18" or 19"

[Walker2, Brian (Rich. Dist)]

Just stops ok? What kind of pads are you running?
My car with the stock calipers/rotors and braided front lines stops very
well with the R4S pads. Are they ulra heavy wheels?

Geoff is explaining it as best I've heard. I'd run smaller wheels if I
could but keep in mind, unless you run a low profile tire with that
small wheel you'll get more sidewall flex, an advantage of larger
wheels. This is why some folks use a larger dia. front wheel than rear.
Of course running a small dia. wheel and low profile tire is going to
change gearing, reducing speed for a given rpm.

For a real world example, this past weekend I finally put on my new
lightweight wheels I've been waiting to use for a while. Old rear setup
(Volk AV3) was 55 lb. for wheel/tire (~28 wheel, 27 tires 17x9 &
255/40/17) New wheels are 17x10 and only 16.5 lbs. (43lb. with same size
tire.) Overall savings was ~30 lb. Even with a tire that has much better
grip, (Azenis 615) wheels spun much easier. It was hard to get used to
how much quicker power would come on and how easily I would bring the
rear around vs. before. Had to relearn the car as it felt much different
and equired more accurate steering with the right foot :) This was on an
auto-x course so it's not as apparent driving around town.

Brian


Date: Mon, 9 Apr 2007 15:49:47 -0700
From: <cthommes at adelphia.net>
Subject: Re: [Supras] 18" or 19"
To: Jeff Mohler <speedtoys.racing at gmail.com>
Cc: supras at supras.com
Message-ID: <8038683.1176158987405.JavaMail.root at web33>
Content-Type: text/plain; charset=utf-8

Enter 4x 14" rotors and 20 pistons.

My car with 18's seems to stop ok.

It's the part about getting it going anywhere (without pushing) that's
tricky.

-Craig