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Message: <blockquote data-quote="-e f i n i-" data-source="post: 815073" data-attributes="member: 7258">Hmmm....I thought when u use high cams, power will only come in at a much higer RPM range...Cuz u see, for NA engines, the way they make a lot of power is by pushing the torque to the later range in the rpm, like based on the equation:(Torque x RPM)/5252 = Horsepowerbut then there are some 4AGEs making power in the 11000rpm, why cant our engine rev that high??Erm sorry for not stating it very clearly. I meant Supercharger pulley. But after looking at the formula u used to calculate the ratio, i dont think my theory i made earlier can be applied anymore.so based on your formula, crank pulley(??) diameter/sc pulley = the ratio of the spinning SC,the bigger the diameter of the SC pulley with the crank pulley diameter still the same at for example 175mm, the slower it will spin...hmmm, yeah i think i get the picture now.At which power level is it recommended to use W55 so as it wont be too much of a burden for ur engine to pull it?After much moments of deep thoughts, Im starting to believe that a correctly sized modern turbocharger is better. besides, there are turbocharged formula one engines in the 80s if im not mistaken running 1500HP on a 1.5litre engine.Hey i also wanna ask, if we smoothen the sharp edges on the crankshaft, i presume its called counterweight, how much can we increase the durability of the crankshaft??Since smoothening or rounding the sharp edges helps prevent cracks and all sorts of high pressure and force caused damages on it, to focus on the small-area counterweight edges.</blockquote>

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