Low Octane Retard Routine
12-15-2002, 06:34 AM
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Car: Devastating Droptop
Engine: 355 Supercharged
Transmission: Auto 4L60, Built for 700hp
Low Octane Retard Routine
I read Glenn's P730 Octane retard article and I have some questions:
8D Ver. AB of TunerCat.
Here are the Low Octane settings.
IS (LOW OCTANE RETARD AMOUNT)THE ONLY THING THAT NEEDS TO BE SET TO (0) TO DISABLE IT THIS ROUTINE.
ECM Constants:
Low Octane Retard MAP Threshold - is set @ 70kpa
Low Octane Retard Diff MAP Threshold - is set @ 0.6kpa
Low Octane Knock Retard inc. Amount - is set @ 17.6 deg
Low Octane Knock Retard dec. Amount - is set @ 0.7 deg
Low Octane Knock Retard Amount - is set @ 4.9 deg ??? (set this to 0)
Tables:
Low Octane Knock Retard Mult. Vs RPM
0 = 1.000
800 = 1.000
1600 = 1.000
2400 = 1.000
3200 = .804
4000 = .753
4800 = .753
5600 = .753
6400 = .753
Low Octane Knock Retard Mult. Vs MAP
20-30 = 0.000
35-45 = .502
50-70 = .753
75 = .902
80-100 = 1.000
8D Ver. AB of TunerCat.
Here are the Low Octane settings.
IS (LOW OCTANE RETARD AMOUNT)THE ONLY THING THAT NEEDS TO BE SET TO (0) TO DISABLE IT THIS ROUTINE.
ECM Constants:
Low Octane Retard MAP Threshold - is set @ 70kpa
Low Octane Retard Diff MAP Threshold - is set @ 0.6kpa
Low Octane Knock Retard inc. Amount - is set @ 17.6 deg
Low Octane Knock Retard dec. Amount - is set @ 0.7 deg
Low Octane Knock Retard Amount - is set @ 4.9 deg ??? (set this to 0)
Tables:
Low Octane Knock Retard Mult. Vs RPM
0 = 1.000
800 = 1.000
1600 = 1.000
2400 = 1.000
3200 = .804
4000 = .753
4800 = .753
5600 = .753
6400 = .753
Low Octane Knock Retard Mult. Vs MAP
20-30 = 0.000
35-45 = .502
50-70 = .753
75 = .902
80-100 = 1.000
Last edited by LBSZ28BLOWN; 12-15-2002 at 06:37 AM.
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