Quote:
Originally Posted by Justin@ADVAN Performance
Hey mate,
the HPF "Feramic" face clutch is quite a good clutch for street use and will hold more torque than the venerable ACT "Street" clutch, with little loss in drivability over that of the full face organic ACT clutch.
But be very careful when racing at the strip on drag radials with the HPF unit, it is very susceptible to welding. 
I had the Stage 2 in my 135i and we managed to weld it to the flywheel on two consecutive outings, the second occurrence required the use of a cold chisel to remove the friction plate from the flywheel driven surface.
We will be installing a custom OS Giken twin-plate setup in my 1'er very soon, but whilst it's extremely durable and ideally suited to 1/4 mile racing, it's an expensive bit of kit.
If you are not wanting to spend a lot, I would suggest you look at the Spec clutch kit that Shiv is using, as it seems to have survived the many hard launches he has done at the strip, both before and after the installation of his "Big single".
Cheers,
JD. |
This... Ferramic clutches LOVE to weld....