I just want to make sure I have my fpr hooked up right. I've talked to three different people at summit tech support, and gotten three different answers, so I'm giving up on them. I'm using an Aeromotive A-1000 fpr.

Here's how it's run:

The fuel feeds into the primary rail, goes to the secondary rail, then into the side of the fpr, then out the bottom of the fpr, and into the return hardline on the body. Does that sound right?

Here are the three answers I got from summit:
1- I have the wrong type of fuel pressure regulator
2- it's supposed to go in one side, and out the other side
3- My way is correct

what do you guys think?

 

Your way will work but one rail will steal pressure from the other. The best way to do it is to T your feed line so if feeds both rails in parallel. The primary rail will go into the right side port of the FPR. The secondary rail will go into the left side of the FPR and the return line will go into the bottom. If you search you should be able to find a picture if my explanation doesn't make sense.

And no, you don't have the wrong FRP. The Aeromotive A-1000 is one of the best afprs on the market. PM me if you need more help.

 

 

Ok thanks. I gathered from some threads while searching that my injectors aren't big enough to need a parallel setup. I've got 850/1300 and still use the stock rails. Should I still go parallel rails?

 

From what I have read, it isn't dependant upon the injector sizing, but rather trying to ensure the same consistent pressure to both rails. My car is a single turbo and was setup like you mentioned in your first post. So it will work.

On my build I will be running 760/1680 combo and plan on going parallel. I like to over engineer my cars, it makes me feel more confident on their reliability. Also since it is a rotary and has little chance of surviving detonation, I choose to hold no stops on the fuel support.

So basically, no you don't need to. But parallel is a superior setup and shouldn't cost much more, so why not? You don't even have to use AN lines, I am sure you could find a Y block that utilizes push lock fittings.

I will quit posting and wait and see what the other members have to say. Good luck

 

personally I don't run a parallel setup. I have 550/1680cc. Routed from tank > primary rail > secondary rail> FPR > return to tank. I figure the FPR is last and will maintain the 40+ psi in the lines, provided the pump can keep up there really shouldn't be a pressure difference from rail to rail. If there is it can't be much. Thats the whole reason to have the FPR after the rails to keep the pressure up. *shrug*

 

You have it hooked up right, I supply my secondary injectors first since they need more fuel and then to the primary rail and out to the fpr.

 

Ok, thanks everyone. I'll keep it this way for now, if nothing else, it's just simpler. Maybe I'll switch it when the next rebuild time comes.