Carl Walichnowski
Active Member
I'm interested in buying a new cylinder &/or piston & either porting or polishing one or both, whatever is best. I'd love guidance as to what is best for the motor for mid & high range rpm. A fellow member provided some good advice to port the cylinder, rough up the intake & also to polish the piston & chamber head. So with that on my to do list I need to order the right stuff but I have no idea what sizes my motor takes. Does anyone know what size cylinder & piston I need to buy for a 2015 Grub Skyhawk GT5a?
