Have a customers linhai gy6-150 in the shop. We are trying to make the most of the stock displacement. He's ok with the curent 58mph top speed from his trans mods, but want the best posible low to midrange power. We have extensivly ported the head and decked .035" off for a comp ratio of about 11:1. My question is could we use a lowend cam like an A-14 to make the best lowend power? Would running high compression with this cam cause detonation? since we will have a beter lowend anyway would we benifit more from an A-9 or A-10? What is your thoughts on using an 11:1 ratio and a lowend power cam?
The curent mods on this scoot are... Custom snorkle intake, 30mm pumper with matching manifold, matched intake port with swirl finish, stainless valves, polished ext port, P&P exhaust, koso variator, 12gr sliders, gates powerlink, prodigy clutch and bell, stock gears, pirelli sl-26 tires 100-90-10 F & 110-80-10 R.
What cam do you think would bring it all together best?
The curent mods on this scoot are... Custom snorkle intake, 30mm pumper with matching manifold, matched intake port with swirl finish, stainless valves, polished ext port, P&P exhaust, koso variator, 12gr sliders, gates powerlink, prodigy clutch and bell, stock gears, pirelli sl-26 tires 100-90-10 F & 110-80-10 R.
What cam do you think would bring it all together best?