[Supras] FW: Rear end pulling left under accel

[Chris Smyczek]

I would bet there is excess play in an arm or bearing if the tires can be ruled out.

-----Original Message-----
From: Jeff Mohler [mailto:speedtoys.racing at gmail.com]
Sent: Friday, May 05, 2006 4:29 PM
To: csmyczek at molbiores.com
Cc: supras at supras.com
Subject: Re: [Supras] FW: Rear end pulling left under accel


Troubleshooting..perhaps not..no..but generally speaking tires and
pressures are so misunderstood...

But im guessing he has one wheel with either or a combination of more
camber than the other side..more toe +/- than the other side.

As the rear end squats, that geometry difference will magnify and
dog-leg the car.

Tires operate differently new from old..not even considering one brand
to another in what they will feed back to the driver when things like
that come up.

Ive got my $1 bettin on alignment.

On 5/5/06, Chris Smyczek <csmyczek at molbiores.com> wrote:
> After 220k miles, one or more of the RUCA bushings may be shot. 28psi cold is not too low of a pressure for troubleshooting his problem.
>
> -----Original Message-----
> From: Jeff Mohler [mailto:speedtoys.racing at gmail.com]
> Sent: Friday, May 05, 2006 3:02 PM
> To: csmyczek at molbiores.com
> Subject: Re: [Supras] FW: Rear end pulling left under accel
>
>
> Never heard that UCA bushings were a normal wear item..
> And I take issue on the tire temps..but thats from a racer POV..proper
> tire pressures are read by the physical wear OF the tire when hot.
>
> Every tire is different, every driver is different, so 28psi could be
> way low, just depends.
>
> Myself, I run 32F 30R cold pressures, and I runabout 40psi hot each
> end...where the tire wants to be according to how it flexes and wears.
>
> On 5/5/06, Chris Smyczek <csmyczek at molbiores.com> wrote:
> >
> >
> >
> >
> > The rear upper a arm bushings wear to the point you can tug and get
> > movement( with the car on the ground)from the the wheel. I noticed the front
> > lowers do the same after 100k ++ miles. Try grabbing and pulling the topside
> > of the wheels. Set your tire pressures at 29 front, 28 rear. Let me know
> > what happens.
> >
> > -----Original Message-----
> > From: Supras-bounces at supras.com [mailto:Supras-bounces at supras.com]On
> > Behalf Of Rockey Fox
> > Sent: Friday, May 05, 2006 11:43 AM
> > To: supras at supras.com
> > Subject: [Supras] Rear end pulling left under accel
> >
> >
> > Since putting my new tires on I have noticed that the
> > harder I accelerate the more the rear end seems to
> > drift to the left and pulls back to the right when I
> > let off.
> > I suspect the strut rod bushings are soft on the right
> > side but I would like other ideas or recommendations
> > of what else may be causing this.
> >
> > TIA,
> > Rockey 91T with 220K miles
> >
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