67RSCamaroVette

iTrader: (63)

Hey! maybe someone can help me out. I'm converting my 67 camaro to a LS1 setup. I have a single line vette fuel rail system at the moment, no gas tank in the car at the moment, no lines other than copper one that's GOOOOne.. What i was thinking, was maybe buy a dual-line setup tank, (came stock on big-block cars that year), run external fuel pump from feed on tank, to a pressure regulator, (2 lines in, one out, regulates to the needed 40? psi, returns the rest) then the pressure regulator's return line back to the tank. I do NOT want to run a second line to the engine, as i'm 17 and strapped for cash. I'm thinking that with S/S lines would be sweet.. Any input would be very helpful! thanks!
olly

GTS346

iTrader: (1)

Mate an LS1 requires 58psi (5 bar) fuel pressure at the rails

67RSCamaroVette

iTrader: (63)

It is a regulator<---? from a vette, it's set at the right pressure, asking if it's a good idea. Any ideas or comments would be especially helpful. What i'm most concerned about is the tank setup, fuel pump size, brand, etc....
thx, olly

GTS346

iTrader: (1)

(2 lines in, one out, regulates to the needed 40? psi, returns the rest)

Just telling you should be 58psi not 40psi. There not adjustable the standard reg anyway so it as to be set right.

Get a walbro 255LPH pump, sump your tank and be done.

redmist

The other low cost alternative is a plastic fuel cell from summit. "Y" the two outlets, mount the fuel pumps (carter 4psi rotary $60 and a Airtex 2315 $100) in the trunk with a short return line and a single line (3/8ths or 6AN) to the fuel rails

67RSCamaroVette

iTrader: (63)

Thanks alot! I don't want to run a fuel cell. I want all of my limited trunk space. What does sumping the tank involve? I'm not familiar with that term. Thanks for the pump recommendation, I'll pick one up.
olly

72ChevelleConv.LS1

iTrader: (5)

You have a person weld a low dish for lack of words, to the bottom of the tank and then your fuel pump line and return gets gas from the bottom of the tank an will stay full to support the external fule pump. I went this way in my 72 Chevelle. This was easier then putting a in tasnk pump and baffels into my tank. The gas fill tube in the tank got in my way. Yes you need 58 LBS for a LS1. if you use a in tank pump, I would sudjust using the 99 and up vette fuel filter it has a built in regulater and a return port that will help you save some cash. good luck

redmist

Well not excactly. The outlets for the tank now come from the sumped section to your external pump then to your regulator. The return line goes from your regulator to the top of your tank as far away from the inlet as possible to minimize areation.