Inliners International Forums General Discussion Hi Performance combustion chamber polishing?

Polishing the chamber also keeps carbon from building up and the polished surface reflects heat back into the cylinder. Our latest race motor has piston tops polished to look like chrome along with the chamber in the head. A lot of builders polish the exhaust port to a mirror finish to reflect heat and to keep the build up to a minimum. The intake runners should be as cast or rougher, you don't want them shinny at all. Fuel will stick to the smooth sides and fall out of atomization then set on the runner floor.

Joe