Questions about installing Ground Control coil over conversion with Bilsteins

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • Grackle
    Advanced Member
    • Jul 2015
    • 119

    #1

    Questions about installing Ground Control coil over conversion with Bilsteins

    Hi guys, I'd call ground control, but they are closed for the weekend and I have my car apart. I have run into a couple of issues. I bought this kit:



    Setup for these shocks:

    http://www.ecstuning.com/BMW-E30-325...cks/ES2771367/

    First question, is it normal for the springs to be very loose (even with the adjusters all the way up) when the suspension is at full droop? The rears are like this, I just got my front strut housings all torn apart and they look to be the same way.

    Second, it doesn't look like I can run the blue boots on the front struts with the springs GC gave me because they interfere with each other. I suppose I just run without the boots?

    Third, this was supposed to be a drop in kit (wasn't interested in going low enough that I needed to cut the housings) However, it looks like I will have to cut the spring perches off at the very least to get more the one inch worth of adjustment out of the collar. If so, can I just let the sleeve ride on the remnants of the spring perch without having to weld the provided plates? I have a flux welder at my disposal, but I am not very good with it.

    Any help is appreciated.
    Thanks
    Last edited by Grackle; 08-22-2015, 07:42 AM.
  • DRTSRFR
    E30 Mastermind
    • May 2008
    • 1836

    #2
    If you are running 6" front and 5" rear springs combined with stock length dampers; yes, you will have slack in the springs at full droop. This is generally not an issue once the car is on the ground.

    Tall rear mounts are available for the rear, as well as helper springs for the front to help with this issue if it truly concerns you. I run the tall rear mounts on all of my e30s.

    If you don't want to use the "D" rings, slide the threaded tube onto the housing and draw a line around the circumference of the tube onto the perch. Cut on the outside of the line when trimming the perch away. This will leave enough of the factory perch for the tube to rest on.

    You won't need the boots. They keep junk in as well as they keep it out.
    Last edited by DRTSRFR; 08-24-2015, 08:33 AM.
    Suspension tips here...
    http://www.r3vlimited.com/board/album.php?albumid=757

    sigpic

    Comment

    • Grackle
      Advanced Member
      • Jul 2015
      • 119

      #3
      Yeah I eyeballed the perches and was doing pretty good until I started the second one. I cut it a bit too low on one side. Ended up building it back up with my welder so it is stable now. I hadn't thought about the helper springs, those are the real low tension ones right?

      Comment

      • DRTSRFR
        E30 Mastermind
        • May 2008
        • 1836

        #4
        Yes, Helpers have no rate.
        Suspension tips here...
        http://www.r3vlimited.com/board/album.php?albumid=757

        sigpic

        Comment

        • JRKOUPE
          No R3VLimiter
          • Dec 2004
          • 3159

          #5
          never even heard of these tall rear mounts...

          ...very trick...cool
          I love sitting down and just driving!

          Comment

          • DRTSRFR
            E30 Mastermind
            • May 2008
            • 1836

            #6
            :coolphoto:


            Suspension tips here...
            http://www.r3vlimited.com/board/album.php?albumid=757

            sigpic

            Comment

            • Grackle
              Advanced Member
              • Jul 2015
              • 119

              #7
              Yeah if I hadn't spent so much already this month I would have ordered those drop mounts.

              ETA: er, lift mounts?

              Comment

              Working...