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DonE DonE is offline
Wo ist die Rennstrecke?
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Join Date: Mar 2004
Location: Brooks, GA
Posts: 1,211
Originally Posted by Captain Ahab Jr View Post
Lovely work but I have one question, why does the single turbo system have thick port flanges?

Is to give the system a bit more support for the single turbo which I am guessing will be mounted a lot further away from the ports than the twin turbo system?
In a word, heat. In two words, heat cycles. There is a point of diminishing returns, so thicker is not always better. At idle a typical 930 motor exhaust will be around 475 degrees F, but at WOT, it can range from 1500 to 1600 degrees depending on the tune. The flanges need to be fairly robust (resistance to warping) to avoid leaks.

Ideally, the turbo should be supported by something more than the header.
Old 02-15-2010, 04:49 PM
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