Clutch slipping at high speed/load
#1
Race Director
Thread Starter
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
![soapbox](https://rennlist.com/forums/graemlins/soapbox.gif)
Well, passing 130mph the other day in 4th gear I noticed a clutch/brake smell and that the rpms seemed to be climbing faster than the speed. Sounds like my clutch is slipping, eh?
How many miles have you guys gotten on a clutch? I am around 50K miles, 15K of which at 17-18psi and the rest at 15 psi and I drive the car pretty hard (without abusing it)
Is there anything terribly wrong with just replacing the clutch disk (i.e. reusing the pressure plate) ? Is it worth getting something beyond the Sachs disk?
#4
Drive-by provocation guy
Rennlist Member
Rennlist Member
Join Date: Apr 2002
Location: NAS PAX River, by way of Orlando
Posts: 10,439
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
when I had mine done after years of hard driving and 15-18psi, all that was changed of major parts was TO bearing and disk; which I went with the Cup disk.
The Cup disk with 18-20 psi and about 330-350whp has not slipped at all.
The Cup disk with 18-20 psi and about 330-350whp has not slipped at all.
#5
Rennlist Member
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
Doesn't seem worth it not to also change the pp, throw out bearing, guide tube, pilot bearing, etc. You can generally get the flywheel turned for cheap--I'd at least do that personally. You can check the rms at the same time.
#6
Addict
Rennlist Member
Rennlist
Small Business Partner
Rennlist Member
Rennlist
Small Business Partner
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
If your in there, I would definitely look at a better clutch disk - especially if you plan on re-using the PP. The southbend feramic sounds like a good option, IMO.
#7
Rennlist Member
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
If you got 50k slip-free miles out of a stock clutch, I'd be inclined to stay stock and just switch to a cup disk.