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Old 12-09-2017, 11:44 PM   #1
SunSoaked
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Location: Yuma Arizona
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Efi return pressure?

Currently installing a pro-flo efi and remote sump. I'm using the abandoned factory vent line for my return. I'm also thinking I can T into that line with the remote sump vent line. Does anyone know what the pressure is on a typical efi return line? I'm hoping it doesn't back feed return fuel into the sump. If so, I guess I'll add a check valve.
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Old 12-10-2017, 08:55 AM   #2
sweetk30
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Re: Efi return pressure?

you will want the same size as feed or next size down .

if the vent is the tiny 1/4" line then not a good idea . it will restrict and hold pressure . you want the return to be as free flow as possible.
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77-k30lb BIG truck build .
87-k30lb budget beater build .
85-k30lb the plow machine build .
85-c10sb summer fun toy .
-----------------------------
HOLLEY SNIPER efi = worst case of p.i.t.a i ever had .

EDELBROCK pro flo 4 = best deal going so far . love my setup works great.
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