Quote:
Originally posted by 2ndGenTeg
By no replacement for displacement, every 1.8L motor would have the same output, PERIOD. Every 400ci motor would have the same output, PERIOD. Every motor would have the same specific output, PERIOD. All three of these are false.
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he sumed it up here, 9:1 compression(just a number) will produce x amount of torque(read: real power) in a 4000cc engine(again, just a number) if you increase compression(via pistons or forced induction) you are increasing the engines power output. that is a fact of physics, the replacment for adding displacment is increasing the amount of air going into the combustion chamber then compressed, increasing the oxygen levels(n2o) or increasing the piston compression, or changing cam profiles are ways to increase the engines total output without changing the size of the engine.you can increase displacment to an extent on any block, and keep all other factors the same, and increase tq. you may not gain more hp, but more air will 99% of the time = more power considering you are not delivering increadably hot air(via poor turbo set up etc) to the engine. this theory applys to all engines i can think of. if there is one i forgot, dont ream me, state my error in a constructive matter. i know the engine layouts (v6 v8v10v12 or the VW W engines, opposing V engines, inline and boxer engines) also comes into play, but for the sake of this conversation, i dont think we need people with engeneering degrees explaning this to us, same thing with pushrod vs OHC setups. they are WAY beyond the technical competance of what this argument is.
ferrari increased power by having high compression pistons
porsche uses a turbo on a smaller engine
honda uses a variable valve lift on some engines
nissan and toyota use turbos sometimes
we will say for the sake of a benchmark that the standard american domestic engine is the origional engine because it was, these different companys have taken the design and built off it, improved in some eyes, changed for the worse in others.
rotory engines are not vaild, i know i brought them up, but thats a different technology than a crank and rod engine all together. 0.65Lx2(2 rotor engine, each one with .65L of displacment) yeilding 280hp STOCK is just crazy