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what th points to set at 90 T2

Old 06-26-06, 01:23 PM
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what th points to set at 90 T2

I have a 90 S-5 T2 motor in my 82. Currently using a afc-1 wired to the map sensor before the fcd. Its set up that 40% is basically 0 on the boost gauge. I am running rc 750 and stock 550 with a walbro 255. I am only pulling out fuel on the low map at idle -10%. The set points are 55% and 65% Which kicks in the high map at roughly 7 psi. I am pulling some fuel out starting at 3k on the high map. -3% and works up to -16% at 7k.
My question is it pulls fine at 10 psi in third and fourth. I have a wideband and that how I dialed in my fourth gear pull. But in first and second its a dog, its falls on its face a lot. How do I keep my high map for third and fourth, and still dial in first and second. Is that possible, or is it standalone time.
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Old 06-30-06, 03:31 PM
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I had my high set point at 99% (~15PSI on the MAP)
The S-AFC can then work in the middle, between the low & high map, without going full rich too soon.
I had a header dump right after the turbo.
It really put some kick in the low gears.
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Old 06-30-06, 05:40 PM
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Ok i following what you are saying, what about the low throttle point setting.
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Old 07-03-06, 08:46 AM
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I had my low point at 50% for better fuel economy.

If your setup wants to hesitate just a bit when you punch the throttle, you can try lowering it to 40 or 30%
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