Quote:
Originally Posted by hobieboy
991st, thanks for the insights... you brought up a number of good points.
But please bear with me being a little slow -
The size of the hot side will directly impact the onset time (spool up of turbo) and will also impact the top end (when it chokes hence back pressure).
The size of the side will affect volume of air being pushed into the engine given same turbo spinning speed.
Got these...
But, given same boost level & same engine/intake plenum, why would a bigger cold side (ok, if we don't care about lag let's make the hot side big too) makes more power than a smaller one? It takes same volume of air (with some density different of course due to air temp) to produce same boost?
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I think you just answered your own question? Same volume of air but greater density = greater mass = more O2 molecules to mix with your C and H molecules and therfore produce more power?