Rajunrick
08-27-2013, 02:41 PM
Hey all! Gotta make this quick, supposed to be working. Building a 90' TRX300 engine for my 250SX. 10.25:1 piston should be here any day now. Trying to pick the right cam. Trike will see some mud, but nothing to deep. Mainly trail riding and WOT on straightaways. Trying to decide between a 40b or a 459 grind. Anyone share some insight on this? Will get the perfomance springs with the cam, will have some type of perf exhaust, will try to use 350X carb or bigger, may stick with stock SX ring gear(high speed) or use TRX250 ring gear(more torque), will run 25's all way around with hipers on back at least. Thanks, be back on later.