AEM Fuel Pressure Regulator
05-02-2002, 11:08 AM
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AEM Fuel Pressure Regulator
I have an AEM fuel rail and a Walbro 255 intank pump, if I get an AEM fuel pressure regulator and 370 injectors will this be ok instead of having the vortech 12:1 fmu. BTW I have a Drag III kit already installed with the inline pump. I want to remove the inline and vortech unit for bigger injectors and an intank pump.
Let me know if I am missing anything, or if you would change what I have listed!!
Let me know if I am missing anything, or if you would change what I have listed!!
05-02-2002, 11:21 AM
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Re: AEM Fuel Pressure Regulator (redline)
Why is a fmu still required, the pressure regulator won't increase fuel suffiecently enough? I need a specific answer if at all possible or who to ask if you can't give me a specific answer.
Thanks
Thanks
05-02-2002, 11:31 AM
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Re: AEM Fuel Pressure Regulator (TURBOED-TEG)
The AEM only has a 1:1 rise rate under boost. The 370cc injectors will allow a low (60-80psi) max FP for boosting, but you'll have a problem getting a good max FP at the same time as getting good FP's for normal driving. Without another FPR/FMU, you'll either have correct static FP and too low max FP (hello blown engine) or a too high static pressure and proper max FP (hello "Too Rich" codes).
If you have a VAFC or other fuel computer, you may be able to not use another FPR, but I wouldn't bet on it.
If you have a VAFC or other fuel computer, you may be able to not use another FPR, but I wouldn't bet on it.
05-02-2002, 12:12 PM
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Re: AEM Fuel Pressure Regulator (Holden)
I have an S-AFC installed on the car already...so what is the best solution? What is the best set-up? Am I wasting my time upgrading injectors or should I just keep the car the way the kit came with the inline and vortech fmu (12:1). What are other people running on their cars?
05-02-2002, 01:41 PM
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Re: AEM Fuel Pressure Regulator (TURBOED-TEG)
run the 370cc injectors w/ either 6:1 or 8:1 FMU, use the fpr to lower base fuel pressure if it is neccessary(probably wont be) and use the AFC to tune your fuel curve.
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05-03-2002, 05:08 AM
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Re: AEM Fuel Pressure Regulator (SuperDragII)
I plan on staying under 10psi but, I don't like having an inline and 12:1 fmu. If I get rid of the inline and get say a 6:1 disc and new injectors (370's) how am I to besure that a 6:1 is needed and not a 8:1 fmu. Is there anything besides an fmu that will raise fuel pressure under boost?
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