[s-cars] Re: S-CAR-List digest, Vol 1 #1106 - 12 msgs

[Peter Schulz]

Guys:

Graydon Stuckey also tried it on his EFI 5kqt....

-Peter

**************************************************************
To: Peter Schulz <peschulz at cisco.com>
cc: jani.peltopuro at poyry.fi, s4audinut at aol.com, peterc at webone.com.au,
        s-car-list at egroups.com
Subject: wider tires on front

On Tue, 16 Jan 2001, Peter Schulz wrote:

> Graydon Stuckey has tried the wider front tires on his former tweaked
> 5kcsq...I recall him stating that he liked the increased turn-in control,
> but it suffered from some tramlining, and his wife definitely did NOT like
> the change in handling.
>
> Graydon- care to correct me or add some details?

Yes, I had 245/45-16 on the front and 225/50-16 on the rear.  The 5KCSTQ
with about 275 hp and that combination of tires was awesome.  I ran it at
Waterford hills once like that, and it was one of those rare times when
the car seemed to drive itself.  The car was lowered slightly, and it had
slightly stiffer shocks.  The sway bars were all stock though as were the
bushings.  I also had an S4 front strut brace, modified slightly to fit
the 5KCSTQ.  It also had alot of rear negative camber which helped rear
grip.  So that was slightly at odds with the goal to reduce rear grip in
order to promote oversteer.  The balance was perfect though.

It was a pretty tight handling car overall.  The tramlining was primarily
due to the very stiff sidewalls of the D40M2 tires, and the offset that I
had in order to fit the tires on the front.  The front wheels were 16x8.5
ET35 IIRC.  There were a couple mm clearance to the steering arm on the
strut, but the tires' sidewalls were so stiff that they didn't flex enough
to touch those steering arms.  I couldn't believe it.   The rear wheels
were 16x7.4 ET45.

Later,
Graydon D. Stuckey
Next gig - January 20th!  Check out the details at...
http://elektro.cmhnet.org/~graydon/

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At 08:23 AM 2/25/2003 -0700, mlp qwest wrote:
>Hum, I think Roland at MTM once made a good case for wider tires on the
>front of one their project cars, an RS2 I think.
>
>I think there was a European Sports Car (? @ June or July 95 or so) write up
>about it someplace.  I know there is at least one old thread in the
>archives.
>
>Mike
>
>~**************************************************************************************

Peter Schulz
1990 CQ
1991 200 20v TQW indigo mica
1991 200 20v TQW titanium grey
Chelmsford, MA USA
peschulz at cisco.com