I am getting ready to tear down and modify my GY6 crossfire 150R Buggy. I have the 62mm big bore kit and large valve cylinder head, a massive 8mm stroker crank, MRP large racing exhaust, oil cooler and catch tank, and the DR2 variator and racing clutch with multiple springs and weights. Here in Florida, where we ride, the land is pretty flat, but sugar sand is plentiful. I have the A-9 camshaft, which I thought would be good because the increased displacement, generally helps offset loss of lower midrange torque. Most websites state the A-9 is best for acceleration. After further reviews, I am wondering if a A-11 or A-12 cam may be better suited. I would like to install the right camshaft once. Most forums are for lightweight scooters used on the pavement, so the A-9 may not be the best selection for this heavy buggy. Does anyone have a similer build, that have experimented with different camshafts? Thanks.
