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Thread: Hardly any change in fuel map, but wayyy richer Hemi in Speed Density

  1. 10-13-2022 #1
    GrannySShifting
    GrannySShifting is offline
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    Hardly any change in fuel map, but wayyy richer Hemi in Speed Density

    Only thing makes sense to me is fuel pressure somehow way higher all of the sudden?

    Outxxxx file is run8 log, other tune is just some slight timing changes and since it was 11.7 in middle of pull tapering down to 11.5 I added just a couple percent to get it on commanded air fuel but in back to back pulls it was WAYYYY richer even though injector duty, VE etc only show very slight changes?
    Attached Files Attached Files
    Factory Stock 97 SS M6 13.51 @ 104.3 mph
    Stock Longblock LS1 w/ 233/238 P.S.I. Cam
    10.81 @ 126.9 Full interior, six speed on 275 radials, a decade ago

    '99 TA trunk mounted 76mm 6 Liter
    9.0s in '09 @ 153 MPH

    Turbo 5.3 Volvo 740 Wagon
    32psi and still winding out 5th on the highway somewhere
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