i 'm going to use 2x550cc primaries and 2x1600cc secondaries with a cartec fuel pump(low pressure) feeding a surge tank and then an aeromotive fuel pump(high pressure) for efi.
what size fuel lines do you insist me for fuel delivery,for fuel return and from main tank to the first fuel pump?

P.S.the vehicle is a first gen one but as far as we are talking for a s5 engine,i think that's the right forum.

 

-6AN feed - does your car run 5/16" OD metal lines like the FC's all do?&nbsp If so, then they are fine.


-Ted

 

i'm going to use a haltech stand-alone for efi.do you insist me of using a 1:1 rising rate(boost sensitive) regulator?

 

Sure, you've got enough fuel injector to handle like 400hp if you can get enough fuel at it...

-Ted

 

i measured my stock lines.the feed one is metal with 5/16" overall diameter.the return is approximatelly 4/16".do you think that they are enough for a setup like this?

 

I'd run the 5/16" line as a return is possible.&nbsp You're going to run a fuel pressure gauge to keep tabs on the fuel system, right?


-Ted