C5 to C6 Fuel System Help

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Jun 12, 2013 | 09:49 PM

Piperporsche180944

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C5 to C6 Fuel System Help

Hello.

I have a 1997 Corvette with a LQ9 and LS3 heads, LS3 intake and a LS3 fuel rail. The C5 fuel rail has a fuel return line, the C6 LS3 fuel rail has no return line spot. How should I go about fixing this issue?

Do I need fuel return?

Thanks!
Piper

Jun 13, 2013 | 10:53 PM

Piperporsche180944

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Anyone?

Jun 14, 2013 | 07:29 PM

Bill Dearborn

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You might get quicker reaction if you direct your question to one of the Motorsports companies that are forum vendors. I would talk to several on the phone.

Bill

Jun 14, 2013 | 07:33 PM

vettenutchas

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From: austintown ohio

Put on billet fuel rails like the ones Holley makes and you can run a return line off one of the rails.

Last edited by vettenutchas; Jun 16, 2013 at 11:06 PM.

Jun 16, 2013 | 10:34 PM

Piperporsche180944

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Quote:

Originally Posted by vettenutchas

Put on billet fuel rails like the ones Holly makes and you can run a return line off one of the rails.

Will I need adapters for the short LS3 injectors to work?

Jun 16, 2013 | 11:04 PM

vettenutchas

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From: austintown ohio

Holley make's fuel rails for the stock LS3 manifold that work with the stock LS3 injectors, I have a set and they work perfectly with my stock LS3 manifold and injectors.

Last edited by vettenutchas; Jun 16, 2013 at 11:06 PM. Reason: spelling

Jun 16, 2013 | 11:12 PM

Piperporsche180944

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Quote:

Originally Posted by vettenutchas

Holley make's fuel rails for the stock LS3 manifold that work with the stock LS3 injectors, I have a set and they work perfectly with my stock LS3 manifold and injectors.

Awesome, I really appreciate the advice. I am contacting Hinson in the morning. They have this fuel rail kit below

http://www.hinsonsupercars.com/p-153...ls1ls2ls3.aspx

Another thought, I purchased the UPP in line fuel pump kit below

http://www.hinsonsupercars.com/p-153...ls1ls2ls3.aspx

Could I just run the return off the regulator? NVM, its a stand alone system, I will most definitely need a billet rail.

Last edited by Piperporsche180944; Jun 16, 2013 at 11:22 PM. Reason: Found the answer :)

Jun 16, 2013 | 11:24 PM

vettenutchas

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From: austintown ohio

Those are the fuel rails I am referring to by Holley. I bought the rails without the fittings and fuel line in the kit you have listed. Made my own lines up with fittings and line from Summitt because I wanted black lines and fittings and needed fittings different from what is in the kit you have listed. I am not sure about running return line from regulator, hopefully some one else can help you.Don't want to give you bad advise. Good luck!