aftermarket fuel Regs

[subaru-mania]

Okey so brought new side feed rails billet alloy ones, the have -6 fittings on either ends and running a tomie fpr, who has a similar setup? my Question is how did you go about adapting the factory lines to fit in with the bigger aftermarket lines? as mine a quite alot bigger I m running -6 fitting on the Fpr aswell.. Saw the thread on split rail mod but it don't really help me as to how the bigger lines were mated to the stock ones..

[Koom]

Would an Adapter like this one help you out?

CNC Alloy 5/16 to 6AN hose quick connector

[subaru-mania]

yeah man thats what i made up but a rangier version.. surely theres a better way of doing it though?

[Koom]

Braizing some weld on bungs onto your factory hard lines?

Just easier to use the adaptors IMO. Not sure how else you expect to go from 5/16" lines to 6AN?

[subaru-mania]

Hard lines you mean the ones under the manifold that go to rails? if so there long gone all i have now is aftermarket rails with decapped injectors, to bigger fuel lines that have -6 fittings on ends , and the 3 factory fuel lines in engine bay,

Another thing the vaccume for the Fpr what vac line should i use? is the one off the manifold alright ? or should i get something closer to turbo?

[Koom]

No I meant from the 3 factory lines so that you can just run all 6AN in the engine bay i.e. from firewall to rails to FPR back to firewall.

So now I am completely lost as to what you are asking?

How to plumb the whole lot up from supply to return?

Just use the same nipple that fed the original FPR. And don't tee anything else off it, run a dedicated hose from intake manifold to FPR.

[subaru-mania]

 Koom said:

No I meant from the 3 factory lines so that you can just run all 6AN in the engine bay i.e. from firewall to rails to FPR back to firewall.

So now I am completely lost as to what you are asking?

How to plumb the whole lot up from supply to return?

Just use the same nipple that fed the original FPR. And don't tee anything else off it, run a dedicated hose from intake manifold to FPR.

ahh i see what you mean, but yeah would be a bit of mucking around, adaptors would be alot faster..

Well the way i was planning on pluming it the same as this setup ..

[Koom]

That looks about right. Just use an adaptor at the first tee. Then 6AN from those to the rails.

6AN from the rails to the 2nd tee and also from that tee to the FPR.

Then 5/16" from the FPR back to the return line at the firewall.

Not perfect due to stepping up and down in sizes but it'll do the trick without replacing the lines from the tank to the front of the car.

[subaru-mania]

Sweet thanks mate, as im doing it il chuck up bit of a guide with some pictures, I see theres a thread on her covering doing split with the two right rails but not on using two lefts or aftermarket rails, so might be of use to someone..