12-23-2004, 08:50 PM
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CC Member
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Join Date: Dec 2004
Cobra Make, Engine: Shell Vallley 5.0 HO
Posts: 10
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Not Ranked
Concur with PSB on this one.
The only diagram on VeryCoolParts that's sort of acceptable is "C" because A and B have dead ends on the fuel rails.
Dead ends on the fuel rails can cause problems with heat soak vapor. If the fuel boils in the rails the vapor has nowhere to go except out the injector which can cause backfire that damages butterfly's. With a return at the ends of the fuel rails the vapor can be released back to the tank.
Diagram "C" is not optimal either because it runs all 8 injectors in series. So if there is a slight fuel shortage the last injector will receive less flow. Running 2 banks of 4 injectors each in parallel means the last injector is only 4th in line, less chance of starvation.
So pump- filter- Y fitting- one line to each bank- one line from each bank going to pressure relief valve- back to tank.
Kinsler has some good information, I believe you can access their catalog in PDF format online. Page 71 of their catalog has EFI plumbing diagrams.
www.kinsler.com |
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