what are the hp gains when you install a turbocharger? 
"don't race ebraking idiot honda drivers" - BlackEco
 
I am going to make an idiot comment that I read a long time ago.
some people have said with correct air/fuel  it is 'possible' to expect approximately 7-12 hp per pound.  Some people argu, but as a GENERAL rule of thumb.  But like shifted said, everything plays a huge roll, and any one little thing can easily change these number significantly.
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