relocating ground from shock tower to battery tray

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  • iwantspeed
    No R3VLimiter
    • Dec 2007
    • 3164

    #1

    relocating ground from shock tower to battery tray




    hey guys what does r3v think of moving the wiring for two grounds from the shock tower to the battery tray, think it will be okay?
    13
    leave it where it is
    38.46%
    5
    battery tray
    61.54%
    8


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  • ak-
    R3V OG
    • May 2009
    • 12422

    #2
    could possibly blow the intake welds

    1991 325iS turbo

    Comment

    • Dj Buttchug
      R3V OG
      • Jun 2010
      • 7637

      #3
      also decreases chassis strength. ground on the shock tower correctly polarizes the metal to make for better cornering

      Turbo M42 Build Thread :Here
      Ig:ryno_pzk
      I like the tuna here.
      Originally posted by lambo
      Buttchug. The official poster child of r3v.

      Comment

      • MAXELHOFF
        E30 Addict
        • Jan 2008
        • 414

        #4
        electrolysis

        This is not true:
        Originally posted by Dj Buttchug
        also decreases chassis strength. ground on the shock tower correctly polarizes the metal to make for better cornering
        Polarization will be demented. Cornering will not be improved, to a noticeable degree. Do not relocate the ground, unless fuel economy is an issue.
        Attached Files
        grain of salt:p


        http://https://youtu.be/H8gOAzYchAE:ot:

        Comment

        • Kershaw
          R3V OG
          • Feb 2010
          • 11822

          #5
          im very concerned about max's mental health....

          you can relocate grounds where ever you want. make sure it contacts metal, not paint.
          AWD > RWD

          Comment

          • Dj Buttchug
            R3V OG
            • Jun 2010
            • 7637

            #6
            ^ same. lol

            Turbo M42 Build Thread :Here
            Ig:ryno_pzk
            I like the tuna here.
            Originally posted by lambo
            Buttchug. The official poster child of r3v.

            Comment

            • Ninz30
              Wrencher
              • Nov 2011
              • 245

              #7
              Why do you feel you need to relocate anyway?
              My 1991 325i Cabrio Build

              http://www.r3vlimited.com/board/showthread.php?t=227529

              Comment

              • SGT4677
                Wrencher
                • Apr 2010
                • 253

                #8
                I would say leave it. When I create or replace a bond or ground on an aircraft I measure the results in milliohms. Most of us dont have that kind of measuring equipment at home to measure that low.Another reason to leave it is that you would create a bare metal spot that will rust,and as it rusts,it will create more resistance.

                The existing ground was designed to be a ground,why screw around with it?
                1990 325is "the rat"/ E30 Warsteiner tribute racecar/1985 325e "faded Glory"/ 1968 Chevy II Nova "the baby"/ 2001 525i 5spd purchased May 2013 with 16k miles. Plus other junk that annoys the neighbors.

                Comment

                • DREWHALL
                  E30 Fanatic
                  • Feb 2006
                  • 1207

                  #9
                  Do it it will look cleaner without the wire on the strut tower. :0 Shouldn't make a difference. That's where mine is on my swap.

                  Comment

                  • slammin.e28
                    שמע ישראל
                    • May 2010
                    • 12054

                    #10
                    Ground is ground. Knock that paint off there and make it happen. Just think, the metal of the strut tower is connected to the metal of the battery tray which is connected to the metal of where the battery ground is connected.

                    It's all the same.
                    1974.5 Jensen Healey : 2003 330i/5

                    Comment

                    • ZekeTheSneak
                      E30 Mastermind
                      • May 2010
                      • 1562

                      #11
                      i did it. m3 cover goodness



                      Comment

                      • dnguyen1963
                        R3VLimited
                        • Nov 2011
                        • 2648

                        #12
                        Electrons do not care. Cars are not airplanes. Think of all the rust, oil, gunk, and whatever else on the frame. Just make sure that you have good contact and paint over the bare metal after removal.

                        Comment

                        • dnguyen1963
                          R3VLimited
                          • Nov 2011
                          • 2648

                          #13
                          Originally posted by ak-
                          could possibly blow the intake welds
                          How? Any evidence?

                          Comment

                          • slammin.e28
                            שמע ישראל
                            • May 2010
                            • 12054

                            #14
                            Originally posted by dnguyen1963
                            How? Any evidence?
                            The electrons have a path to follow that is designed into the body/frame of the car. When you change that path, they must find another route to take, sometimes this causes them to take routes that are not designed to handle the extra load of current, and thus, usually at points that have been welded, the seams can break. This then leads to the current flowing through other points and over loads other seams, kinda a domino effect. Before you know it, you'll start your car and all the welds will break and you'll be sitting in a pile of perfect e30 parts, with just the welds having been disintegrated.

                            Grounds are SRS BSNS.
                            1974.5 Jensen Healey : 2003 330i/5

                            Comment

                            • InuFaye
                              R3VLimited
                              • May 2010
                              • 2221

                              #15
                              Im always grounded.
                              1986 Plymouth Horizon. Base.

                              Comment

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