The stock vette regulatro couldnt handle the walbro(I think?), so I got an aeromotive 13101, and set it up having one inlet and one outlet. As Im sure many of you know, the pressure is not being regulated, so
1) Anyone else using a stock vette filter/regulator with a walbro 255?
2) What would I have to do to make the 13101 work?

 

The stock filter/reg should work fine, as should any aftermarket regulator.

Sounds like you may have it plumbed wrong.

You need 3 lines on either to make them work properly.

1 in,
1 out,
1 return back to tank.

 

Heres a pic.

 

So you have 1 inlet, 1 outlet & 1 return.

Where does your return line go?
What size line?

Also is that a muffler that the fuel line is directly above? Not good....

 

Return goes to the tank. 3/8 or 5/16, I cant remember.
And that setup is VERY temporary... i.e. shop tuning

 

Bump. Need some help here guys

 

Aeromotive makes decent regulators, so unless you got a defective one, I'd say the problem is elsewhere. What do you mean when you say "it does not regulate"...can you be more specific? (ie: current fuel pressure vs previous fuel pressure)?

 

Actually, now that I look at it, it appears to be plumbed wrong.
I'm pretty sure that regulator is designed to run on the RETURN side of the system ONLY....meaning that the RETURN line would feed into either side of the regulator, cap off the other side, and run the return out the bottom. If you look inside the regulator ports that you currently have hooked up as an "In" and "Out", I'm betting that you will see straight through the regulator. I'm 99% sure it's plumbed wrong.

 

The plumbing is OK in that configuration.

You either have a return line restriction,
A defective regulator,
or a defective gauge.

 

Oooop....forgot he's working on a 'Vette

 

Probly a restricted return line.The set srew at the top looks to be too far out for 60psi.If the return line is a restriction it will hold the pressure fine at idle but drop with any engine load.

 

I turned the set screw all the way out, and all the way in just to make sure, and didnt touch the pressure. So that means there is a problem in the return?

 

For anyone searching, theres a problem with the return. Not sure if it was too small or plugged, still gotta figure that out.

 

Hi.

Did you solve your problem?

I got the same regulator as you, and as far as I have researched, the configuration should be like salemetro says ==> The regulator must be on the end of the fuel system, from there you run the return line to the tank.

I'm hooking it to a 2005 5.3L engine, returnless rails.

I'm afraid both fittings on the sides of regulator are to hook outles from rail's discharge, so a configuration like your picture won't work.

Or does it work both ways?

 

Well, I found the answer on the Aeromotive's FAQ

They say you can use this regulator both ways. In a returnless rail feed the line coming from the pump to a side inlet of the regulator, then feed the fuel rail with the other side outlet (both are either inlet/outlet). The return to the tank from the bottom.

 

The regulator needs an engine vacuum line to that nipple in the photo in post#3