I only use sprung aftermarket clutches in the little civic, albeit ~132 whp ain't much compared to ITS/R cars. Yet lighter, faster engaging clutches that can withstand more heat w/o killing your tranny is critically important. I went from stock oem clutch, to a ACT 6-puck and now I am using a Clutch Masters 6-puck.
- OEM had a soft fine, smooth feel but would go spongy 10 minutes into an aggressive session. I only used it for 2 track events.
- The 6-puck ACT clutch was married with the HD pressure plate. Great touch, not jerky, smooth fast engagement, perhaps a bit early though nothing that could not be managed with good foot work. After 3 seasons it gave up. The pressure plate warped causing the clutch to drag, making it impossible to change gears = a DNF at LRP in the 2011 season.
- The clutch masters setup is solid. Again, not jerky, smooth fast engagement, yet unlike the ACT, a bit late in engaging though nothing that could not be managed with good foot work and timing of gear shifting.
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