Quote:
Originally Posted by Masteryota
Bumping the compression will increase power throughout the entire RPM range, but you have to be careful about heat, increased compression will result in more heat generated. I plan to use a 14" radiator fan behind the seats to help cool it off.
I did look at the Wiseco pistons, but at $120 for a piston, and the likelyhood of breaking the recoil rope on the trails seemed too big of a risk. The stock runs at 7.6:1, the x model piston runs 9.6:1, the race piston is 10.25:1.
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After my first test run, a heat shield between the headpipes and the seat is a must --fan idea is a good one too. ...it started getting pretty warm on the backside. been thinking along the same lines about shaving the head or deck a bit, going .010 or .020 over and throwing another rod into it--but again air-cooled design comes into play ...