clutch tunning help

[Culvert]

I have a question for the clutch tunners out here.

I have an 05 RX-1MTN.
running Heavy Hitters, O-P-O spring, 14.5mm rollers
Sec silver at 80* with 54/42 helix
Sled pulls 10,500 RPM straight across

Went with same set-up but softer pri spring Y-P-Y and now at 11,000RPM.
I thought a softer spring would open faster and not let the sled go as high in RPM??
My question is what effect does spring preload, rate, total force have on RPM's

Any and all input would be very helpfull

 

[mikewayne]

Clutch playing very important role in driving the vehicle because it takes the engine power and then put this down to through drive shaft then to the driven wheels on the road. if the clutch slips down then power may be lost. so kindly check out the same from you nearest mechanic and replace if necessary