JWT clutch is just too damn good... unfortunately...

1slow370

actually the design of the bearing contact on the front of the slave cylinder can actually effect the force applied to the thrust bearing as well. due to lever shaped nature of pressure plate fingers the contact patch actually changes in size throughout the stroke of clutch engagement and different designs of bearing face and finger angle can cause side loads imparted to the clutch as you now need to actuate both the clutch itself and over come the these forces as well. the clutch imparts ZERO force on the thrust bearing, all of the axial pressure applied come from the throwout bearing overcoming friction and the spring force of the clutch in order to actuate it. Zspeed has done a good job with there upgraded (what looks to still be a valeo unit) csc as i'm sure it has no more problem with the o-ring in the base as the metal base probably doesn't distort as much as the plastic one did if there even is an o-ring anymore. But it seems to use the same bearing lock ring and plastic piston that the factory unit uses.

The company i am looking at makes multi-plate clutches, fly wheels, and hydraulic throwout bearings for many many full on drag cars, Midwest america series cars, formula 100 cars, and several other venues of professional racing, the parts are made entirely in the USA, and they don't carry the crazy upmarket prices you find on japanese parts. the factory CSC was like $260 from nissan, the one i'm looking at is full race forged and cnc machined aircraft grade aluminum and is proven to be damn near indestructible.

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