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Craig 930 RS Craig 930 RS is offline
Me like track days
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Join Date: Sep 2003
Location: Kirkland, WA
Posts: 10,196
Question AFR - ideal 90 degrees IC outlet vs. 140 at the track - what's the diff. in density?

I've adjusted the AFRs so they are pretty slose to perfect - 12.0 to 12.3 all the way up...

Situation is under ideal dynamometer conditions - IC outlet temps a nice comfy 90 degrees.........all was good.

So what is the difference in air density - and thus the theoretical "textbook" difference in AFRs from this ideal, to 140 degrees on track under full on track use?
- Craig 3.4L, SC heads, 964 cams, B&B headers, K27 HF ZC turbo, Ruf IC. WUR & RPM switch, IA fuel head, Zork, G50/50 5 speed. 438 RWHP / 413 RWTQ -
"930 is the wild slut you sleep with who tries to kill you every time you "get it on" - Quote by Gabe
Movie: 930 on the dyno
Old 08-14-2007, 01:53 PM
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