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Old 12-19-2004, 09:56 AM   #12
89s132b
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Join Date: Apr 2003
Location: Oklahoma
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89s132b is an unknown quantity at this point
The SAFC cannot adjust fuel when your ECU is in closed loop (i.e. while idling)
Your O2 sensor feedback will maintain your a/f ratios regardless of your fuel pressure and SAFC setings. But still you don't want to pump it up too much

Rule of thumb is don't run more than 60 psi. It takes 4 times the fuel pressure to double fuel flow so it doesn't help as much as you would think anyways. Raising the pressure to extreme levels is very hard on the pump and can lead to leaks or failures in the plumbing and injectors themselves. Plus it changes your injector latency so they won't be firing at quite the right (optimum) time.

It is much better to buy the right sized injectors.

hope this helps
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