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Re: Fuel pressure regulator & return line? (archive)

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Posted by mark '72 golf on September 10, 1999 at 07:37:12:

In Reply to: Fuel pressure regulator & return line? posted by Paul C on September 10, 1999 at 03:10:48:

What kind of electric pump are you using? If you are using the standard Purolator pump #42s, (looks like it's a fish tank pump) you will not need a return line. However you should have a regulator in line to guage the pressure. Duals do not need alot of pressure and don't like to much. Typically you'll want no more than 3.5 to 4 lbs. The bowls hold a decent amount of fuel. This is how i have mine set up and appears to give no problems.

: I am days away from driving my '02 again. The final step is hooking up the fuel delivery system. Please help I need to figure this out before saturday.
: Here is the problem. I fear that the electric fuel pump in the car now is not putting out sufficient pressure, only about 1.6 to 2 at the maximum. I have an electric fuel pump that I used when the car had the Tii injection plumbing. Obviously that pump puts out quit a bit of pressure. If I were to use this pump with the dual Webers and fuel pressure regulator will I need a fuel return line? If so do I connect it before or after the regulator?

: My guess if after otherwise the pump will just push the fuel back into the tank instead of through the restriction at the regulator.

: Thanks for the help,
: Paul

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