Clutch Slave / Master upsizing?

[sca037]

Just wondering if anyone that needs a clutch with more clamping power has found a way to 'upsize' the hardware to restore the pedal pressure closer to the normal range?

Our LoveFab car has a mighty RPS twin-disc clutch that was designed for 700ft/lbs of torque, and as you can imagine the pedal pressure is substantial.

Has anyone experimented with possibly changing the Slave and / or Master with another unit to try to alter the fluid dynamics, as a kind of force multiplier (while keeping the overall movement the same)?

We're quite used to the extra leg effort required, but since I have the system apart this would be a good time to make this type of change.

Thoughts???

Brian
(I've read about altering the Pedal & Rod interface, but am not interested in doing that).

<a href="https://picasaweb.google.com/lh/photo/QacQOaa61auyD1_q1hq3-tME-dYAvntPjW4trWFzMDY?feat=embedwebsite"><img src="https://lh6.googleusercontent.com/-u4pDJbp3azU/U7Qa-kNjsUI/AAAAAAAAAC8/qVkoVFvQYco/s640/Front.jpg" height="640" width="614" /></a>

 

[angus]

Well, you would need either a smaller master or a larger slave and that would also reduce the amount of travel you'd get at the master, which in the case of your RPS twin should be OK. Easiest way would be machine the slave for a larger bore. The reduced travel at the slave could also be increased by making the pedal travel further, possibly making modulating the clutch easier.

 

[sca037]

Well, you would need either a smaller master or a larger slave and that would also reduce the amount of travel you'd get at the master, which in the case of your RPS twin should be OK. Easiest way would be machine the slave for a larger bore. The reduced travel at the slave could also be increased by making the pedal travel further, possibly making modulating the clutch easier.

Interesting, has anyone actually succeeded at doing this?

I would be especially interested in what hardware was used to accomplish the goal.
I've just installed a new (OEM) Slave, but could buy an alternate Master if a plug-and-play solution is available.

Thanks for the insight!
Brian