[Supras] New clutch slipping, shifting problem?

Jeff Mohler speedtoys.racing at gmail.com
Wed Feb 27 15:51:30 CST 2008


Dude, nobody EVER won a race from a stop.

We dont do many standing-stop starts, because it breaks so much stuff.
  Clutches, diffys, transmissions...everyone's on race rubber that
wont give so easy also.

if youre faster than someone..you'll catch em in a lap no matter what.

On Wed, Feb 27, 2008 at 1:36 PM, Walker, Brian (Rich. Dist)
<Brian.Walker2 at vdot.virginia.gov> wrote:
>
>
> Didn't put much, I think it was due to a poor shift at the beginning of the
> lap. I wasn't sure if that would allow it to slip but evidently it can. I'll
> be trying it out under full sessions next month (these were time trial laps
> from a stop) and will try to smooth out the shifts by then.
>
> Btw, does the press. plate normally change the engagement point drastically?
> The pedal has to be depressed almost to the floor now and we've bled it a
> couple of times.
> Thanks,
> Brian
>
>  ________________________________
>  From: Dave Koos [mailto:dave at azsupras.com]
> Sent: Wednesday, February 27, 2008 3:51 PM
> To: Jeff Mohler; Walker, Brian (Rich. Dist)
> Cc: Supras at supras.com
>
>
> Subject: Re: [Supras] New clutch slipping, shifting problem?
>
>
>
>
> You didn't put too much grease on the input shaft of the trans, did you?!?!
>
> BTDT!! :-O
>
> Dave  92T & 86 P-type
> Mesa, AZ
> http://www.azsupras.com/suprattop.htm
> http://www.azsupras.com
>
>
> ----- Original Message -----
> From: Jeff Mohler
> To: Walker, Brian (Rich. Dist)
> Cc: Supras at supras.com
> Sent: Wednesday, February 27, 2008 9:30 AM
> Subject: Re: [Supras] New clutch slipping, shifting problem?
>
> Could have glazed in the bad earlier shift...doesnt have much time on it
> either.
>
> It SHOULD work itself out...over time.
>
> If it doesnt..its nothing that 200grit sandpaper can work out, but we
> all know what that would take to do.
>
> On Wed, Feb 27, 2008 at 8:22 AM, Walker, Brian (Rich. Dist)
> <Brian.Walker2 at vdot.virginia.gov> wrote:
> > I put about 700 miles on my new clutch (kevlar) and FW (AL.) before a
> >  time trial this weekend. During one lap it started slipping very
> >  noticably in 3rd so I let off, applied throttle again it was again
> >  slipping, much more than the stock unit ever had. Earlier in this lap I
> >  had made a poor shift to 2nd where I mistakenly slipped it a fair
> >  amount, could this be the reason it was slipping in 3rd and 4th? I know
> >  I'm not making the 460 ft-lb. the clutch is rated for (I'd guess I'm in
> >  the 320-340 hp range with similar torque)
> >  I was under the impression that the clutch will not slip once engaged
> >  unless it's TQ rating is exceeded, will poor engagement between shifts
> >  (ie: excessive heat) cause it to slip prior to this?
> >
> >  Thanks,
> >  Brian W
> >
> >
> >
> >  _______________________________________________
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> >  Supras at supras.com
> >  http://supras.com/mailman/listinfo/supras_supras.com
> >
>
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