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      01-15-2012, 09:48 PM   #155
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Drives: E92 335i
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Originally Posted by ExpensiveTaste View Post

Pressure * Volume = a constant * a constant * Temperature

So if the Pressure remains the same and the volume remains the same (stock cylinder head intake ports don't change in size), then it only leaves temperature. Just saying...
The other factor no one has mentioned is the larger turbo has far less backpressure on the turbine side, which is probably the biggest overall factor why 18psi does not equal 18psi.