Fueling & Injection Fuel Pumps | Injectors | Rails | Regulators | Tanks

fuel line return? yes, no?

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Old Jan 3, 2011 | 10:26 PM
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glarior's Avatar
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Default fuel line return? yes, no?

I am doing a LS1 swap into a 80' vette. The engine donor car is a 02' camaro SS. Trying to figure out how to fuel the engine. One article shows just a single line running to the engine with fuel pump from a 84' vette. Thinking of doing that but not sure.

Should I run a return line?
Also, does the 02 SS camaro have a return line setup?

Thanks!
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Old Jan 4, 2011 | 01:54 PM
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It has a short return line back by the filter. I do a kit for swap cars with a short feed and return to a C5 Filter/Regulator then a single line to the rails. If planning any mods to the motor I would use a return line. Give me a call I can help you get what you need.
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Old Jan 5, 2011 | 10:19 AM
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Originally Posted by glarior
I am doing a LS1 swap into a 80' vette. The engine donor car is a 02' camaro SS. Trying to figure out how to fuel the engine.
Basic C3 swap, lots of good info in the Conversions & Hybrids section here.


Originally Posted by glarior
One article shows just a single line running to the engine with fuel pump from a 84' vette.
'84 C4 was running Cross Fire Injection, throttle body setup running nowhere near 58psi fuel pressure. Very unlikely that pump will even make 58psi, and even more unlikely the pump will last very long if it somehow does.

Check the section mentioned above and see how others have approached it. I use and recommend Walbro GSS340 in-tank fuel pump for LS1 applications, less current draw than most TPI pumps and makes 58psi without a problem.


Originally Posted by glarior
Should I run a return line?
Also, does the 02 SS camaro have a return line setup?

Thanks!
Dead-heading your fuel pump is not a good idea. The '02 Camaro, I think, returns fuel at the in-tank assembly. Again, take a look at the other C3 swaps and you'll get good ideas.
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