PCM Diagnostics & Tuning HP Tuners | Holley | Diablo

base spark question??

Old Jul 22, 2002 | 03:45 AM
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Default base spark question??

this is going to sound dumb,
on a m6 car , when using ls1 edit to tune your base spark numbers , what table to adjust? the base spark in drive or base spark in park??
why are they different on an m6 car???

<small>[ July 22, 2002, 03:45 AM: Message edited by: 1dirtyZ ]</small>
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Old Jul 22, 2002 | 08:53 AM
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Default Re: base spark question??

Correct me if I'm wrong but I think the base spark in Park (A4) is pretty much same as our Neutral (M6), in Drive (A4) should be in Gear (M6), I'd changed both tables from 0~1600rpm but haven't flash the PCM yet, will let you know how it goes.
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Old Jul 22, 2002 | 03:47 PM
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Default Re: base spark question??

what numbers did you use?? did you make them the same as the high octane table??
i'm asking this cause every time i shift the car bogs a bit then picks up ( kinda sluggish). in worse instances the car would jerk a bit. do you think this would be because of the timing tables?
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Old Jul 23, 2002 | 11:23 AM
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Default Re: base spark question??

the stock timing tables from 0 to 1600 rpm were all over the place and looked like a mess, so I'd just set the same value across the entire range from 0.08gm/cyl to 1.2gm/cyl:

Base spark in park:
0rpm=20
400~1200rpm=24
1600rpm=28

Base spark in drive:
0rpm=22
400~1200rpm=24
1600rpm=28
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