sheeloco Posted June 25, 2011 Report Posted June 25, 2011 whats up guys. ive got a question, my brother just installled a 421 cub engine. went racing on dunes and im beating him every time. i have a 350 drag port job with cpi in-frames, 34 mikunis, 8 pdl haulers and he has the same setup except for the brand new cheetah cub. do you guys have any insights on this? p.s. all of our work has been done professionally by k&t performance. Quote
stacman450 Posted June 25, 2011 Report Posted June 25, 2011 whats up guys. ive got a question, my brother just installled a 421 cub engine. went racing on dunes and im beating him every time. i have a 350 drag port job with cpi in-frames, 34 mikunis, 8 pdl haulers and he has the same setup except for the brand new cheetah cub. do you guys have any insights on this? p.s. all of our work has been done professionally by k&t performance. tuning, jetting, is his running good? i had trouble getting mine tuned, but then again i had a right side crank seal leaking.. it was using case oil and running waaaaay to rich.... had it done "professionally" also.. Quote
BigRed350x Posted June 25, 2011 Report Posted June 25, 2011 whats up guys. ive got a question, my brother just installled a 421 cub engine. went racing on dunes and im beating him every time. i have a 350 drag port job with cpi in-frames, 34 mikunis, 8 pdl haulers and he has the same setup except for the brand new cheetah cub. do you guys have any insights on this? p.s. all of our work has been done professionally by k&t performance. You have both setups jetted correctly? What is the chassis setup of both bikes? Both riders the same skill level and weight? The cheetah cub is probably spinning the shit out of the tires wtih only 8 paddles. There are a LOT of variables that go into a race & its virtually impossible to tell whats going on with the lack of detail you've provided. First thing I would check is the jetting on both bikes and see if one is lean or rich, and definitely get the correct tire setup for both bikes. Neither one should be running 8 paddle haulers... Quote
dirtydownunder Posted June 26, 2011 Report Posted June 26, 2011 swap bikes and race. is his throwing the front in the air and he has to back off, or is it just spinning the tyres ? drag ported 350s can be crazy fast. Quote
bansheeboy44 Posted June 26, 2011 Report Posted June 26, 2011 swap bikes and race. is his throwing the front in the air and he has to back off, or is it just spinning the tyres ? drag ported 350s can be crazy fast. Sounds like rider and set up issues Quote
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