I currently have a destroyed RPS Max Series 6 puck ceramic that I need to replace/repair. The shop that is going to fix it for me can replace the ceramic pads with Kevlar ones which will improve the driveability. How much of a hit am I gonna take on the performance side of the equation though? I am concerned that the surface area of Kevlar may not be enough to hold the power I should be making. I was putting down 440 wtq with my old setup up but I am in the process of instaling ported heads and upgraded cams. I don't expect the toque to really change much but the whp should go up. I know that torque is what really matters so do you think a 6 puck Kevlar would hold 450 wtq?
Keep in mind that tq is relative to hp. I'm not sure about the kevlar holding. Do you have any specs on the kevlar being replaced? Maybe search for some kevlar clutches by other companies (I think ACT and Exedy both have a kevlar clutch) and see what their ratings are for. I simply hate my 6 puck sprung ceramic clutch. Next time I hope to find a nice strong organic full disk clutch.
I hated my 6 puck ceramic too. Driving in Atlanta traffic was a nightmare for the whole year the clutch lasted. It also trashed the flywheel and the pressure plate but fortunately the place that is building the new clutch for me was able to salvage both. The pressure plate I was running would have cost 700 on its own to replace. The new setup is going to cost right at 225 for the disc , machining, throwout and realese bearings. The place doing the work is Specialty Clutch in Atlanta. I'll post a review once I get everything back together and drive it for a while.
My experience with kevlar clutches in motorcycles is that they grip GREAT! But the down side is they also burn out kinda fast.