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Old 03-27-2009, 04:32 PM   #7 (permalink)
ConnClark
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Join Date: Jun 2008
Location: Richland,WA
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Das Schlepper Frog - '85 Mercedes Benz 300SD
90 day: 23.23 mpg (US)

Gentoo320 - '04 Mercedes C320 4Matic
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Quote:
Originally Posted by tasdrouille View Post
That is your opinion. A counter argument could be that a WAI increased the burn rate. Or if you increase the injection pressure, you get higher combustion temperature and more heat transfer, yet better BSFC. The point is, I think it helps, you think it doesn't, but none of us have put an engine on a dyno to test it appropriately.
Fortunately this has been well studied. This is on a naturally aspirated engine. See the lower half of page 11 and figure 14 in the appendix.

http://aerade.cranfield.ac.uk/ara/1937/naca-tn-619.pdf

Quote:
Originally Posted by JoJotheTireMan View Post
No, not a diesel.
Good.
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