i didnt want to start another thread but i have a question im not 100% on.. I hear 15psi is nearing flow and max for the 4g64. I understand engines are different and bla bla bla so some can handle more or less but i wanna know what determines the highest boost i can run... I have a big 16g now --i run 12 psi all day and night no knock no problems but ive run higher with no knock... ive run 18psi with no knock and its much better power but is it the wear down of the engine or is it the knock im most worried about.. I dunno if i am explaining it right because my question makes sense to me lol.. For example i tune 15 psi no knock so i up to 16 then 18 psi and no knock is that acceptable???
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