OK so I replaced the master and slave clutch cylinders about 1k miles ago after the originals went out following a clutch replacement. I'm running a 4puck and HD hub. It's stiff, but it's all that'll hold without going to a twin plate, a new S/S clutch would not hold at all.

So I'm going through clutch cylinders now. Does ANYONE make Heavy Duty Clutch Cylinders that'll hold out with a stiff clutch?

If not I'm either looking at replacing cylinders avery 1k miles or going with a twin plate.

 

Same problem happened to a buddy that installed the ACT 4 puck disk and HD hub. Master cylinder went out next day. Slave followed the week after.

I'm also dying to know if anyone makes a heavy duty master cylinder for the RX-7.

 

When I installed a six-puck with heavy duty pressure plate from ACT, I ordered a braided line from Mazdatrix and a new clutch cylinder from Victoria British. Over three years later it has not failed me once. Where are you getting the clutch cylinders? Dealer?

 

Yeah mazda house. I run a braided line as well.