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(drifting) fuel starvation solutions wanted

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    (drifting) fuel starvation solutions wanted

    I have a 1990 325is m50b25tu swapped, i use the car primarily for a weekend drift car, and the occasional cruise. I had noticed once i first started getting good at drifting if i hang a corner too long in one direction, or large donuts the car runs out of fuel, the gas light will come on with a half tank in the car while its sideways and then sputter, loss of power, and eventually loss of the actual slide, which takes away alot of fun, and occasionally makes me look like an idiot when i lose momentum because im running out of fuel. do any of you guys run alternative pump/tank setups that may help me with this issue? i dont really want to go with a fuel cell in the trunk although i may end up going that route if there are no other known fixes for this on the e30. what do you guys think?
    sigpicFellow e30 enthusiast
    Dont waste your time hating, aint nobody got time fo dat
    1986 bronzit 325es- SOLD
    1987 delphin 325i- parts car
    1990 scwarz 325is- m50 drift slut
    CHECK OUT THE BUILD!
    http://www.r3vlimited.com/board/showthread.php?t=229234

    #2

    Edit:
    That's for cars with two pumps, not sure if it will work with one.
    Last edited by jclar; 07-02-2013, 10:05 AM.
    '86 325es M50

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      #3
      I don't think this is normal. could be a number of things - bad pump, rust in tank, old filter, blocked fuel return, blocked fuel feed from drivers side of tank, etc.
      Build thread

      Bimmerlabs

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        #4
        If you discover it is starvation, any sort of in line collection/surge tank should fix it. I use a 1/2 gallon alluminum surge tank on my e24 race car.
        90 325i DD/Track
        03 Durango 5.9


        Originally posted by e30mpg
        It is recommended to get new gasket but this is R3v and we just copper spray that shit......slap biotch on and tighten to tq.

        Comment


          #5
          Originally posted by jclar View Post
          http://www.gutenparts.com/partners/g...lator-e30.html
          Edit:
          That's for cars with two pumps, not sure if it will work with one.
          is this a part that i already have in my car somewhere that you think is failing? or are you suggesting adding this into my current system as an upgrade?
          sigpicFellow e30 enthusiast
          Dont waste your time hating, aint nobody got time fo dat
          1986 bronzit 325es- SOLD
          1987 delphin 325i- parts car
          1990 scwarz 325is- m50 drift slut
          CHECK OUT THE BUILD!
          http://www.r3vlimited.com/board/showthread.php?t=229234

          Comment


            #6
            Originally posted by nando View Post
            I don't think this is normal. could be a number of things - bad pump, rust in tank, old filter, blocked fuel return, blocked fuel feed from drivers side of tank, etc.
            It never happens, I can drive the car wide open on the highway without a sputter, its only when im sideways in a right turn for an extended period of time or right donuts, i have one of the cars with a "saddle tank" i believe its like a hump over the driveshaft
            sigpicFellow e30 enthusiast
            Dont waste your time hating, aint nobody got time fo dat
            1986 bronzit 325es- SOLD
            1987 delphin 325i- parts car
            1990 scwarz 325is- m50 drift slut
            CHECK OUT THE BUILD!
            http://www.r3vlimited.com/board/showthread.php?t=229234

            Comment


              #7
              oh and filter and all rubber lines and clamps have been changed.
              sigpicFellow e30 enthusiast
              Dont waste your time hating, aint nobody got time fo dat
              1986 bronzit 325es- SOLD
              1987 delphin 325i- parts car
              1990 scwarz 325is- m50 drift slut
              CHECK OUT THE BUILD!
              http://www.r3vlimited.com/board/showthread.php?t=229234

              Comment


                #8
                If this happens with a half tank, I'm inclined to suspect that the siphon in the tank isn't working properly. That could be a problem with the siphon or as a result of a worn pump that isn't producing the fuel flow that it should. The first thing I'd do would be to replace the pump with a new OE part. If that fails to cure the problem and you still see the fuel light come on, there is a problem with the siphon and I'd replace the tank.

                It is possible to fit the tank with dual pumps which will eliminate starvation issues (see http://www.r3vlimited.com/board/showthread.php?t=157887), but that more for allowing the tank to go well below 1/4 full.
                The car makes it possible, but the driver makes it happen.
                Jim Levie, Huntsville, AL

                Comment


                  #9
                  Originally posted by jlevie View Post
                  If this happens with a half tank, I'm inclined to suspect that the siphon in the tank isn't working properly. That could be a problem with the siphon or as a result of a worn pump that isn't producing the fuel flow that it should. The first thing I'd do would be to replace the pump with a new OE part. If that fails to cure the problem and you still see the fuel light come on, there is a problem with the siphon and I'd replace the tank.

                  It is possible to fit the tank with dual pumps which will eliminate starvation issues (see http://www.r3vlimited.com/board/showthread.php?t=157887), but that more for allowing the tank to go well below 1/4 full.
                  Thanks, im going to start with an upgraded fuel pump since i have boost in my future somewhere and take it back to the track and see what happens :)
                  sigpicFellow e30 enthusiast
                  Dont waste your time hating, aint nobody got time fo dat
                  1986 bronzit 325es- SOLD
                  1987 delphin 325i- parts car
                  1990 scwarz 325is- m50 drift slut
                  CHECK OUT THE BUILD!
                  http://www.r3vlimited.com/board/showthread.php?t=229234

                  Comment

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