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911st 911st is offline
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Join Date: Jan 2004
Location: Sacramento
Posts: 7,269

That is a really cool data point!

It is interesting that bassically going with a larger hot side alows for almost another 80 hp as the compressor sides do not seem to be that much different in capacaty.

If the hot side is so restrictive on a K27-7200 why dose it make sense to add an even bigger compressor wheel to it???

Could someone come up with a CNC programe to increase the AR of the 7200 hot side or is it mostly a need for a larger turbine wheel that gets the extra power?

I still have lots to learn.


Originally Posted by TurboKraft View Post
That's the same as our experience on a Dynapack chassis dyno and a conservative engine dyno at MODE (Bob Holcombe, Motorsport Design).
Best repeatable numbers on a 3.4L Euro 930 with a K27-7006 was 455hp on MODE's dyno. Raise the boost and the same numbers hit at a lower rpm, not more gains up top.
To the wheels on the Dynapack, similar 930s with K27-7200s top off around 375hp.

Responsive with stock cams or mild cams like SC. Lots of fun on the street.
Old 04-27-2010, 09:03 AM
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