piston/sleeve resizing?
Has anyone had this done to there engine? I see it on ebay and figured i would ask the question. What do they do to the engine. im still pretty green in this sport so work with me. The pinch is the pressure you feel at TDC right? What is the pinch or i should say what causes it. I'm really familiar with combustion engines, nitros not so much? drop a line to help me and other newbies out. Thanks