can anyone help me with this setting hicam (272) + hi compression piston...
is it worth or will make more trouble for me or a should use stendet low comp piston..
by da way its 4g93 engine...
plsss help me sifu...
thankss..
if u don't want to waste money for RON97 petrol...then u can maintain stock piston....there is still noticable powergain at high rpm...its just the engine would be a bit lazy on lower rpm range....
if u don;t mind pouring RON97 everytime you fills up your tank,then high comp. piston is the way to go...it gave better torque at low rpm to compensate pumping loss (lower than ideal air velocity at low romp) from the big valve overlap and valve open duration (cam degree)...plus the power gain was much better than low-romp (stock) piston