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Thread: LS2 RAF tuning...

  1. #1

    LS2 RAF tuning...

    The RAF tuning for the LS2 looks to be very similar to the LS1/6 but I'm confused about something. One cell is 0.00'd out while the others show a normal value. The cell that is 0'd is the one @ idle RPM. Whats the trick to changing the values?
    Phil
    1999 Corvette Coupe
    Worlds Fastest 346" N/A Coupe
    ProStreet Motorsports
    HP Tuner SD specialist All GM Vehicles
    2000 Mustang 438" LSx 4.70 @ 164
    ------
    NEW 346" N/A testing: 10.4 @ 132.4 N/A(875')
    NHRA Corrected: 10.21 @ 134 N/A
    Old Nitrous Best: 10.0 @ 138.89(181 DA)

  2. #2
    HP Tuners Owner Chris@HPTuners's Avatar
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    these values are the minmum allowed idle airflow, they are not the RAF like the LS1.

    The idle airflow will not learn down below these values so you can put a lower bumpstop on idle if you want. The idle cells in PN are set to 0 in most GM cals so the idle can learn down to whatever it takes to meet the desired idle RPM.

    Chris...
    I count sheep in hex...