markS2kcU

Can you use the AEM regulator that sits on the fuel rail instead of using the Comptech regulator?

Which would you say was the better one and why?

Sideways

What have you done to your car?

markS2kcU

Nothing yet

I'm getting ready for more boost, got the EMS and tuner sorted, getting bigger injectors and then I read it might be helpful to use the AEM fuel pressure regulator.

It will be alright to use it now running stock set up?

folex187

The AEM doesn't rise the fuel pressure as much as the comptech.

AusS2000

They are two different things. If you're using the standard Comptech tuning you need the Comptech FPR (high ratio). If you're using proper engine management and larger injectors then you can use a conventional FPR (1:1 ratio) like the AEM.

I use the AEM EMS, 550cc injectors and the AEM FPR.

markS2kcU

I wish I had posted this last night, then I wouldn't have fitted it yet.


A/F ratios were shocking with the AEM fitted.

Guess what I'm refitting tomorrow.

Cheers guys.

Slows2k

You can't swap the Comptech FMU to a 1:1 FPR without having some other means to add fuel in boost.

folex187

Anyone successfully used an AEM with stock injectors and emanage or aem ems?

Sideways

Yes.