Re: counter weights needed?
but not all engines are counter weighted and yes i know its to counter weight rods and pistons but what experience have you guys found/had? smoother, revs higher?
Ok if building a good street/performance motor and have a respectively light flywheel do you need counter weights? most people add weights to smooth out vibrations caused by weight of stock flywheel on crank/flex and main bearing stress, but if weight is greatly reduced from flywheel you gain...