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Heh I've been playing with motors since I was kid everything from lawnmowers radio controlled car motors to big cars this idea that hot spots in the combustion chamber causing predetonation is true but not on these small 4 stroke motors. the compression ratios do effect detonation but little hot spots never. I've played with combustion chamber like I said before and no differance was noted . I've also played with the dome shape of the pistons Hieght ,progressive edge and squash zone no differance . these theorys just don't apply with little 4 strokers from what I have seen .

No pissing matches needed just facts . but like I said these little 4 strokers are being built bigger and better than lets say 10 years ago so we should keep the lines of comunication open and the R&D rolling.

there is still alot we don't know about these little guys so back to the drawling board we go untill we figure it out
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