Hi guys i'm building a custom setup with a T04E turbo and looking to achieve 250 WHP. my question is. Do i need to change the stock fuel pressure regulator ?? what kind of fuel pressure regulator do i need ?? BTW i've allready change the fuel pump to a 255 lph walbro.

 

I would assume you'd have to change it out if you got bigger injectors and a high output fuel pump... Not sure though. Or maybe you only change it out when you upgrade to a high flow fuel rail. I'm curious to know also.

 

To answer you question, no you don't need an aftermarket FPR for what you are doing. To clarify, our FPR are in-tank units (you plugged your walbro into it) that just bleed off the excess pressure before it even leaves the tank (approx. 50psi). You will only need an aftermarket FPR if you modify you fuel system to a return setup.

 

only time you need one is if your convert to a return fuel system.

 

or you buy my aeromotive dfmu (link in sig), which allows for adjustable fuel pressure based on boost....on a returnless system.

 

of just install the walbro since you don't need either of those

 

different solution for a different problem

 

The fuel pressure regulator is actually on the fuel rail, there may be a relief valve in the tank but there isn't a fuel pressure regulator in the tank.

 

i think you are confusing the pressure pulsation damper, which is on the rail, with a regulator. the only FPR on the tC is in the tank. two totally different things.

a relief valve is a pressure regulator, it regulates the pressure by relieving it.

 

You are correct, I just looked at the service manual disk I have. I have never heard of a fuel pressure pulsation damper. WTF is it? LOL.

 

QFT