I would look into the skirt clearance, Diamond make a good piston and depending wehich ones you have they may have the beefed up skirts. With a high compression motor and N2O there is a lot of stress on the piston as they are thrown aroud.
I would look into the skirt clearance, Diamond make a good piston and depending wehich ones you have they may have the beefed up skirts. With a high compression motor and N2O there is a lot of stress on the piston as they are thrown aroud.