port and polish....

[trx400EXtreme]

ive heard that a good port and polish is where the real power is at. true? ive been wanting to do this.

[wilkin250r]

Sort of.

The real power is in the entire package, making sure that all components are designed to work together.

If you got a top-notch porting job, but all other components of your engine were stock, you'd see very little gain. Maybe 4 horsepower.

However, if you're engine was fully built with a piston, camshaft, carburetor, the works, and THEN ported your engine, you'd see a 10-12hp difference from before to after.

Porting can make a big difference, yes. But it's really most effective when combined with the total package.