...in the class we run (Super Can) we run an adjustable multi-disc clutch (Horstman) and set the engagement speed (usually somewhere around 9000 rpms) and gear the kart so it tops out around 14,500 rpm.....15+ HP with the big Walbro carb...basically made to run balls out, they don't like to idle...throttle is like an on/off switch....you might be better to run the smaller Walbro carb like they use in Jr Sporstman classes...tames the motor a little bit...either way you better hang on when that sucker gets rolling !! .....:thumbsup:
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This is me and my kart out practicing
KT-100 Clutch goes right on the end of the crank (it's small and kind of hidden by the sidepod in the pic)...Horstman is the most commonly used.... usually a 2 or 3 disc job with adjustable spings on the flyweights to set the RPM's at which it will engage...its a tapered bore clutch/ tapered crank ...guys run them with or without the key, but the "fit" is critical and often times they are "lapped" to a perfect fit and then stay married to that crank...if the clutch hub starts to spin on the crank at high speed....:doah::hammer::doah:...it's bye, bye crank, get your wallet out.:doah:
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Hell it sounds fun to me! this is what my open motor will do! This was my last race last year at dumplin valley in TN!
YouTube - Dumplin valley fall shootout 2010 open motor 3
YouTube - Dumplin valley fall shootout 2010 open motor 3
