Thread: K27 vs K28...
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squerly squerly is offline
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Join Date: Dec 2004
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Thanks everyone for your input. How would I know if my current turbo is a HF? Can you tell by looking at it???

Originally Posted by DSPTurtle View Post
Does the K28 take longer to spool up? Since it is bigger it probably has more mass to start moving but that coudl help keep the boost up between shifts. Plus, you can only put so much air into a 3.3L engine... and once you hit max boost all the extra goes through the wastegate anyway.
I would have to go out and drive it to be sure but Iím thinking that it starts noticeable spool somewhere around 2500rpm. Also... there has been reference made to the "cool" side of the IC. Which side is that??? (Sorry my knowledge base is very limited. but I'm working on it...) The weather isn't too bad today so maybe I'll drive it to work and get a accurate spool point.
1988 - 930 Porsche (track Car)
2002 - Panoz (track car)
2002 - 996 Porsche (weekends)
2006 - M5 BMW - (daily Driver)
2006 - F250 turbo diesel
Old 09-28-2007, 03:58 AM
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