engine loosing power in turns

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  • cushionbumper
    Senior Member
    • Apr 2008
    • 104

    #1

    engine loosing power in turns

    we replaced our fuel cell this past week, and installed a new fuel filter. During hot laps after a few laps the engine would die in the turns but come back on the straights. Thought it may be a carb issue. Changed carbs and same happened during the feature. I have my thoughts as to the cause, but looking for some of yours.
    Thanks.
    CB
  • fox1162002
    Senior Member
    • Jul 2008
    • 131

    #2
    Check msd ground. Battery ground. My msd ground became loose and it done the same thing had to weld a bolt to the chassis. Also keep it cleaned and greased with electrical grease.

    Comment

    • dunn5
      Senior Member
      • Jan 2008
      • 385

      #3
      Fuel Filter

      Check fuel filter for being in backwards or spring on wrong end. I have seen this problem several times.

      Comment

      • SS Motorsports
        Senior Member
        • Sep 2008
        • 431

        #4
        Check the location of the pick-up before you do anything else.

        Comment

        • joedoozer
          Senior Member
          • Nov 2009
          • 745

          #5
          Originally posted by SS Motorsports View Post
          Check the location of the pick-up before you do anything else.
          Yeah sounds like a pick up problem to me too. I have heard of people putting the cell in backwards. Putting the pick up at the LF instead of the RR.
          Crew Chief "Tip of the day":
          Most handling problems can be solved by adjusting the screw-ball. It can be difficult to fine tune at times. Explaining yourself loudly and striking it on top of the helmet with a dead blow hammer usually works well.

          Comment

          • cushionbumper
            Senior Member
            • Apr 2008
            • 104

            #6
            that's was my first thought too; check the fuel pickup in the cell.
            That sucks though. Brand new cell just put in last week. Hopefully that is it. I'll let you all know later in the week what the verdict was.
            CB

            Comment

            • SnapOn35
              Junior Member
              • Apr 2011
              • 28

              #7
              we had this problem in our mod a few years back and come to find out there was a piec of tap that was floating around in the tank and it did the exact same thing yours is doing just something else easy to look at good luck

              Comment

              • racin6mod
                Senior Member
                • Feb 2008
                • 2172

                #8
                we just fought the same type problem changed everything but the fuel cell and it still ran like crap on the track. after the 4th carb and talking to the carb guy he sais it's in the msd system so we looked in to every part of the msd . they said to ground the box to the engine not the chassis like we have always done with no problem and that fixed the dam n thing, it ran great the next week.

                Comment

                • cushionbumper
                  Senior Member
                  • Apr 2008
                  • 104

                  #9
                  well the verdict is in.
                  Installed new fuel cell the previous week that was manufactured in Jan, 2011 and new fuel filter.
                  Car would loose power through turns.
                  Drained fuel from cell, removed cell, looked in cell and what did I see?????????
                  The bottom of the fuel cell is covered in what looks like black sand. Apparently the foam bricks have deteriorated to the point of disintegrating, and I'm not talking about just a thin layer of foam, it's 1/2" to 3'4" in some areas.
                  Fuel filter was totally filled with this stuff.
                  Needless to say not a happy camper.
                  Call to supplier today.
                  CB

                  Comment

                  • Matt49
                    Senior Member
                    • Jun 2007
                    • 3123

                    #10
                    I doubt it's a pickup location problem if it is loosing power in the corners. Think about it...even if the pickup wasn't submerged while the car is turning, you would have enough fuel just from the pump to the carb alone to get you through the corner and then some. Not to mention all the fuel in the line behind the pump.

                    Comment

                    • cushionbumper
                      Senior Member
                      • Apr 2008
                      • 104

                      #11
                      after looking down in the fuel cell, it's definitely not a fuel pickup location problem. It's the fuel pickup hose being clogged from the disintegrating foam bricks.
                      CB

                      Comment

                      • cushionbumper
                        Senior Member
                        • Apr 2008
                        • 104

                        #12
                        now that I have the fuel cell cleaned from all the disintegrating foam and I want to make sure the fuel that I drained from the fuel cell prior to cleaning doesn't contain any of the foam. I don't have a funnel with a filter. Is there a way to make a temporary filter in the funnel I do have? Would cheesecloth maybe be a possibility?
                        Any other suggestions?
                        thanks. CB

                        Comment

                        • fox1162002
                          Senior Member
                          • Jul 2008
                          • 131

                          #13
                          Use a paint strainer.

                          Comment

                          • dualdj1
                            Senior Member
                            • Jun 2009
                            • 654

                            #14
                            paint filters would probably work well. something like this (can get cheap ones at paint supply store)

                            Comment

                            • cushionbumper
                              Senior Member
                              • Apr 2008
                              • 104

                              #15
                              paint strainer/filter, good idea.
                              Thanks.

                              Comment

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