My Day at the DYNO

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11-15-2006, 04:49 PM

#21

ERIC-TC

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Join Date: Jan 2006

Posts: 584

I thought it had to do with the turbine side of the turbo. Small turbo's spool quick but back-up the engine when you get to the higher RPM's.

11-15-2006, 04:54 PM

#22

tcengel

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Join Date: Aug 2005

Posts: 879

Quote:

Originally Posted by ERIC-TC

I thought it had to do with the turbine side of the turbo. Small turbo's spool quick but back-up the engine when you get to the higher RPM's.

An engine has to breath to make top end power. Anything can cause a restriction whether it be heads, cams, throttle body, intercooler or exhaust side of the turbo. He could also have problems holding boost because of the internal wastegate, but I doubt that.