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    Thread: 1986 Cabby weber 32/36 carb swap from CIS....fuel pump help needed

    1. Member oopseyesharted's Avatar
      Join Date
      Mar 2nd, 2005
      Location
      Cleveland "Westside"
      Posts
      8,706
      Vehicles
      07' Rabbit & 86' Cabby
      02-21-2017 07:10 PM #1
      Ok guys, I got a 1986 cabby. 1.8 liter 8v CIS.
      I am not messing with the cis garbage anymore.
      I have the redline weber kit with the redline fuel pump.
      I know I need to remove the external pump.
      But do I leave the intank fuel pump hooked up and run the redline pump under the hood?
      Or do I put the redline pump under the car where the external cis pump was?

      Any other ideas would be great.
      Thanks
      Nothing interesting here.

    2. 02-21-2017 10:48 PM #2
      The most fool proof way of dealing with the fuel system is to leave the high and low pressure pumps in place. Run a by-pass pressure regulator befor the carb. The excess fuel pressure will run to the fuel return line and the proper low pressure will be fed to the carb. I did this on my 92 cabriolet and was more than happy when I no longer had to deal with vapor lock or not being able to get the last 2 gallons of fuel out of the tank...

    3. Member Jettaboy1884's Avatar
      Join Date
      Jan 20th, 2004
      Location
      Central NJ
      Posts
      6,950
      Vehicles
      '87 Alpine White Cabriolet' 12 Chevy Cruze ECO
      03-20-2017 05:22 PM #3
      ^ Would running it that way result in a lot of fuel flow back to the tank, resulting in higher gas temperatures from the constant cycling?

      Does the pressure valve result in the high pressure pump not "feeling" a lot of resistance in the system? And do we know if the high pressure pump would put out a low volume, or high volume of fuel in that kind of circuit?

      I ask because I will probably be dealing with this in the future on my Cabby as well.

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