can nitro cleaner be use to clean the engines after use.
when you say the engines lasted 3 to 5 gallons is that changing the conrod every gallon or two,and changing the piston and sleeve or the engine its self before changing anything to it.how often should we change the conrod piston and sleeve.
in on track performance what does the xenon lack compraed to the xenon r, what do i lose
thanks