Hi there i was wandering if somebody could fill me in on the high end mhr tuning kits. I am talking about the single ring kits, what crank fits which kit, 86cc etc... Basically I would like to know if case work is required and if anyone can show me a good setup there running with good results. The reason for this is I'm thinking is it possible to pull 20hp from a zip sp without spending thousands.
for a mhr speed or cross 6T and 7T needs casemodding, A Speed can be used on minarelli with a standard 80mm crankshaft with normal stoke. a Cross version needs a 85mm crankshaft with normal stroke. A bigbore77ccm kit even needs casemodding, but fits on the 7T even with the crankshaft and can be driven with a normal 80mm crankshaft. a bigbore 86ccm needs casemodding, bigger stroke crankshaft with 85mm. and even requires a pen13 crankshaft if i'm right. ( can tell u soon more about the 86ccm bigbore, buddy of me bought this cilinder and i have to build it up and adjust it ) To pull 20hp a stock untuned polini evo with the right parts can do that Butt i say with the right parts, ignition, right exhaust, etcetcetc. A lot of testing with reedvalve's exhaust etcetcetc. and a lot of adjusting and changing parts.
