cam gear tuning question

upontheriversky

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Senior Member
Dec 31, 2007
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i have read that advancing the intake, retarding the exhaust gives less overlap for better low end power and vice versa gives more overlap which is good for high end power in expense of low end

what about advancing intake and advancing exhaust? or retarding intake and retarding exhaust? what kind of changes can we expect?

reason i asked is my kelisa has twin cam but behaves like a sohc coz got only one cam gear running both cams so cant adjust intake and exhaust independently

also, what has been bugging me is that what if the cam has small overlap to begin with? then i should not be bothered to advance but rather retard the cam so i can shift powerband higher for better high rpm use, since low end should be ok enough with small overlap (kelisa has approx. 9 degree overlap out of 720 crank so the ratio is pretty small i think).

comments are appreciated. thanks
 
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