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Subject What AFR would run with Sport500s and CA gas?
     
Posted by sorka on November 14, 2005 at 10:38 PM
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Message Recently installed GD SS DPs. Sport 500s went to fuel spool up from 3800 before to 3300 after. The torque increase was so substantial that I started pinging some in midrange at 1 bar. LM-1 was showing AFR 12.5 from 4000 to 4400 RPMs. At 15 psi, I felt this was clearly too much.

After fuel table changes, I'm down to these AFRs by the time 4000 RPMs hit:

.8 bar = AFR 12.5
1.0 bar = AFR 11.5 bar
1.1 bar = AFR 11.2 bar

The higher the boost at a given RPM, the higher the TP and the leaner that RPM track in the table.

Any opinions for 91 fuel?

     
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