[Supras] Clutch cooling?

[Jeff Mohler]

More cant hurt, but the clutch is only ever in slip mode...like..0.5%
of the time, so its not an important issue.  Its not continually
developing heat in order to operate..like a brake pad.

Once engaged, its good.  If it slips after that, you need a higher
coefficient material and/or heavier plate springs.  If
normal/acceptable use has overheated it and it slips, no cooling will
save it.

Your clutch WILL be as hot as the heat transferred from the engine and
transmission make it.

On Mon, Feb 11, 2008 at 11:17 AM, Walker, Brian (Rich. Dist)
<Brian.Walker2 at vdot.virginia.gov> wrote:
> I'm saving the water spray for applying directly to the center of the
>  rotors. Should make for some nice etch-a-sketch like stress cracks :)
>
>  There are ports on the inspection plates for cooling so Toyota intended
>  to have some ventilation, just wondering if more would help.
>
>
>  -----Original Message-----
>  From: Jeff Mohler [mailto:speedtoys.racing at gmail.com]
>
> Sent: Monday, February 11, 2008 2:06 PM
>  To: cthommes at adelphia.net
>  Cc: Supras at supras.com; Walker, Brian (Rich. Dist)
>  Subject: Re: [Supras] Clutch cooling?
>
>
>
> With PVC ducting.
>
>  On Mon, Feb 11, 2008 at 11:04 AM,  <cthommes at adelphia.net> wrote:
>  > Ok.  Just install a water spray system on it for cooling then.
>  >
>  >
>  >  -Craig
>  >
>  >  ---- Jeff Mohler <speedtoys.racing at gmail.com> wrote:
>  >
>  > > I woudlnt worry about water..its -hot- in there...and spinning.  And
>  >  > doesnt get much splash anyhow in the big picture.
>  >  >
>  >  > 1/2 the world runs without a splashguard.
>  >  >
>  >  > On Mon, Feb 11, 2008 at 10:01 AM,  <cthommes at adelphia.net> wrote:
>  >  > > And even if it did help, it would also a point of entry for road
>  debris, dust, and probably most importantly: water.
>  >  > >
>  >  > >  -Craig
>  >  > >
>  >  > >
>  >  > >
>  >  > >  ---- Jeff Mohler <speedtoys.racing at gmail.com> wrote:
>  >
>  >
>  > > >  > I see the idea, but the cooling effect isnt going to reach the
>  >  > >  > friction surfaces directly...they would be cooled from the
>  > flywheel/PP  > >  > being cooled from surfaces far from the friction
>  area.
>  >  > >  >
>  >  > >  > Its just like brake pads..the temperature/friction
>  > capabilities of the  > >  > friction material AS its being
>  > used/engaged will not be affected by  > >  > any cooling in real time
>  > when you really need it the most if youre at  > >  > the edge.
>  >  > >  >
>  >  > >  > Could you help this out by not applying power until the clutch
>
>  > is  > >  > fully engaged instead of asking for MORE slip to become
>  forward moving
>  >  > >  > power?   The heat comes from slip, prevent it as best you can.
>  >  > >  >
>  >  > >  >
>  >  > >  >
>  >  > >  > On Mon, Feb 11, 2008 at 8:34 AM, Walker, Brian (Rich. Dist)  >
>
>  > >  > <Brian.Walker2 at vdot.virginia.gov> wrote:
>  >  > >  > > I don't know how much some of you have thought about clutch
>  > cooling but  > >  > >  it seems that if the assembly were better
>  > vented it might help to combat  > >  > >  slipping under high
>  > load/heat conditions. We were thinking of modifying  > >  > >  the
>  > front plate with a screen (to prevent debris from entering the bell  >
>
>  > >  > >  housing but allow air to flow in) Also were thinking of doing
>  > the same  > >  > >  to the inspection plates since the air passages
>  here are very small. Has  > >  > >  anyone done this or foresee
>  problems? Thoughts?
>  >  > >  > >
>  >  > >  > >  Brian W-88T
>  >  > >  > >
>  >  > >  > >
>  >  > >  > >
>  >  > >  > >
>  >  > >  > >
>  >  > >  > >  _______________________________________________
>  >  > >  > >  Supras mailing list
>  >  > >  > >  Supras at supras.com
>  >  > >  > >  http://supras.com/mailman/listinfo/supras_supras.com
>  >  > >  > >
>  >  > >  >
>  >  > >  > _______________________________________________
>  >  > >  > Supras mailing list
>  >  > >  > Supras at supras.com
>  >  > >  > http://supras.com/mailman/listinfo/supras_supras.com
>  >  > >
>  >  > >
>  >
>  >
>