Thread: Gt30-76r
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911st 911st is offline
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Join Date: Jan 2004
Location: Sacramento
Posts: 7,269
Here is the compressor map for the K27-7200 and the GT30-76R:

Looking at the 2 bar line at 40lb/min both seem to be about 75% efficiency.

To me it dose not really look like the largest GT30 has any major advantage on the cold side over a 7200. It's magic would have to be in the ball bearing construction and the possibility of better flow potential on the hot side.

Again, probably more like a BB 7006.

I am thinking that for .8 bar boost with our restrictive CIS intake plumbing we should be reading the 2.0 line. For 1 bar the 2.2 line.
Old 10-13-2010, 10:40 AM
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