Fuel line size
10-16-2009, 07:13 PM
#1
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Fuel line size Fellas, I am building a 69 Camaro with a F1 Pro Charged 417 stroker. The fuel pumps are 2 Walboro 225s, mounted separately in a SS tank. Plans are to run the second one on a micro switch off of the accelerator. Questions are what size supply line and what size return. I will be running a Aeromotive bypass valve up by the engine.
Also when 1 pump is running what will keep it from back flowing into the second one? Do I need to install some sort of check valve?
Also when 1 pump is running what will keep it from back flowing into the second one? Do I need to install some sort of check valve?
10-17-2009, 01:03 AM
#2
Most pumps will not pass fluid in the opposite direction. I'd check with Walbro. Aeromotive makes inline checkvalves if you end up needing one.
For fuel lines, I like a -10 line from the pumps up to very near or in the engine compartment, splitting into two -8 lines. each feeding a fuel rail. A -8 return is plenty.
Jim
For fuel lines, I like a -10 line from the pumps up to very near or in the engine compartment, splitting into two -8 lines. each feeding a fuel rail. A -8 return is plenty.
Jim