Vortech fuel problem - Help
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From: 12 Second Club
AF
Originally posted by zimbo
Tommy, you might as well try it. BTW, where exactly on your R4 recording is it that the A/F spikes? It's hard to tell just by looking at the graph above.
--Steve
Tommy, you might as well try it. BTW, where exactly on your R4 recording is it that the A/F spikes? It's hard to tell just by looking at the graph above.
--Steve
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Joined: Jul 2003
Posts: 210
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From: 12 Second Club
Re: AF
Well I went out and tested the car after making the suggested adjustments and whamoo the problem is still there. As I place the car under load around 3000-3200 RPM and boost at 2-3lb it chokes as if no fuel is being delivered. I will be taking it to Grubbs tomorrow. Thanks to all for your assistance, hopefully it’s something simple.
Set it to RPM and Pressure
500 rpm and 1 psi
This setting is to make sure that the pump is not running when the mortor is off.
This will not give you a rich condition as the aux fuel pump voltage is controled via Map "A" .
If you are gitting a lean condition below 2.9 PSI this is your problem.
Timrod
500 rpm and 1 psi
This setting is to make sure that the pump is not running when the mortor is off.
This will not give you a rich condition as the aux fuel pump voltage is controled via Map "A" .
If you are gitting a lean condition below 2.9 PSI this is your problem.
Timrod
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