link3612 link3613 link3614 link3615 link3616 link3617 link3618 link3619 link3620 link3621 link3622 link3623 link3624 link3625 link3626 link3627 link3628 link3629 link3630 link3631 link3632 link3633 link3634 link3635 link3636 link3637 link3638 link3639 link3640 link3641 link3642 link3643 link3644 link3645 link3646 link3647 link3648 link3649 link3650 link3651 link3652 link3653 link3654 link3655 link3656 link3657 link3658 link3659 link3660 link3661 link3662 link3663 link3664 link3665 link3666 link3667 link3668 link3669 link3670 link3671 link3672 link3673 link3674 link3675 link3676 link3677 link3678 link3679 link3680 link3681 link3682 link3683 link3684 link3685 link3686 link3687 link3688 link3689 link3690 link3691 link3692 link3693 link3694 link3695 link3696 link3697 link3698 link3699 link3700 link3701 link3702 link3703 link3704 link3705 link3706 link3707 link3708 link3709 link3710 link3711 link3712 link3713 link3714 link3715 link3716 link3717 link3718 link3719 link3720 link3721 link3722 link3723 link3724 link3725 link3726 link3727 link3728 link3729 link3730 link3731 link3732 link3733 link3734 link3735 link3736 link3737 link3738 link3739 link3740

S13 coilover adapters.... groupbuy anyone?

  • G-E
    G-E
    Junior Member
    • 6320

    S13 coilover adapters.... groupbuy anyone?

    Cut the tube as normal, drill out the nail in the bottom, enlarge to 1/2" hole, insert/orient adapter correctly, use screw to draw in fully (and to straighten), weld around top edge





    If we do 5 set groupbuy price would be $260 shipped, tested with turbo tubes
  • michaelp
    michaelp
    Senior Member
    • 9384

    #2
    Interesting idea…but for $260 shipped, and welding still being required…why not just buy Z31 coilovers? lol
    - VG30DET (HE341) 86 300ZX - 1982 280ZX Turbo - Headered NA 1986 300ZX 2+2 - 2000 Xterra -
  • DeleriousZ
    DeleriousZ
    Senior Member
    • 6874

    #3
    Huh, interesting idea!

    1988 300zxt. gt35, stance, etc. Wheels: Varrstoen ES2 18x9.5 et-13 225/40. 18x10.5 et0 245/40
    1990 jetta vr6'd
  • G-E
    G-E
    Junior Member
    • 6320

    #4
    Welding required either way, this opens the door for a huuuuuuuuuuuuge aftermarket of cheaply attainable coilovers you know that
  • G-E
    G-E
    Junior Member
    • 6320

    #5
    Also… moar wheel clearance? Camber adjustment at the hub? etc?
  • G-E
    G-E
    Junior Member
    • 6320

    #6
    Actually there's a lot of geometry changes you can do with this, if you rotate the adapter forward or rearward, the whole knuckle will tilt, changing caster and steering slightly

    Rotating it forward would move your kingpin back, and the steering arm down, might help on a lowered car with extra caster?

    This can be done prior to welding too, using just the retaining screw underneath and a couple of tacks…
  • Raven
    Raven
    Senior Member
    • 172

    #7
    Interesting. Will this fix the problems of swapping s13 front end components? Seems like it would cause geometry problems because the coilovers would not be oriented how they are factory. I know the s13's are designed to be offset but how will that work on the z31? I would love to see these work though If they don't cause any problems and hold up well I'd be seriously considering them.

    One question about these adapters vs welding the adapter tube on. Those adapter tubes are Stance, but are all coilovers threaded different? Wouldn't that allow you to simply thread any coils in, not just Stance? If not then these adapters do sound nice.
    私♥フェアレディ・ゼット
    ・1984 300zx N/A
  • jaqattack02
    jaqattack02
    Senior Member
    • 1185

    #8
    Raven;333844 wrote: Interesting. Will this fix the problems of swapping s13 front end components? Seems like it would cause geometry problems because the coilovers would not be oriented how they are factory. I know the s13's are designed to be offset but how will that work on the z31? I would love to see these work though If they don't cause any problems and hold up well I'd be seriously considering them.

    One question about these adapters vs welding the adapter tube on. Those adapter tubes are Stance, but are all coilovers threaded different? Wouldn't that allow you to simply thread any coils in, not just Stance? If not then these adapters do sound nice.
    I think the geometry problems come from the S13 LCAs and tension rods. With this all of that would still be Z31. The coilover assembly itself would be the only S13 part and I don't think running it in a Z31 would hurt anything on that.
    Prius… because Pretentious wouldn't fit across the back of the car…

    Cheap, Fast, Reliable - pick any two

    My 1986 Turbo Build
  • Z-31Turbo
    Z-31Turbo
    Senior Member
    • 933

    #9
    Nice!

    That's a great idea, best way to have correct camber correction up front IMO.

    Great price, there is market for such things.
    https://fund-solvaren.com.


    ''And at the end of the day you have a Mitsubishi. It's like masturbating with your own tears.'' Neit86T
  • G-E
    G-E
    Junior Member
    • 6320

    #10
    jaqattack02;333845 wrote: I think the geometry problems come from the S13 LCAs and tension rods. With this all of that would still be Z31. The coilover assembly itself would be the only S13 part and I don't think running it in a Z31 would hurt anything on that.
    ACTUALLY he problem with swapping in S-car stuff is that the steering arm is integrated into the hub, you have no bumpsteer correction or alternative steering ratio parts available, second is the kicker, the location of the kingpin.... S13 kingpin is in line with the steering axis, the z31 is offset towards the front of the car, a difference magnified with the angle of the strut, giving a Z much greater caster
  • Raven
    Raven
    Senior Member
    • 172

    #11
    jaqattack02;333845 wrote: I think the geometry problems come from the S13 LCAs and tension rods. With this all of that would still be Z31. The coilover assembly itself would be the only S13 part and I don't think running it in a Z31 would hurt anything on that.
    That's true but this will cause the coilovers to sit offset from the original location of the down tubes right? Would push the spindles out creating a wider front end. Could have bonuses. Wouldn't take as high an offset wheel to sit flush and it sits it out enough wheels should clear the coils with no problems. Only thing then I'm still unclear on is that if they do push the spindles outward will everything still bolt correctly with no modification?
    私♥フェアレディ・ゼット
    ・1984 300zx N/A
  • G-E
    G-E
    Junior Member
    • 6320

    #12
    Raven wrote: That's true but this will cause the coilovers to sit offset from the original location of the down tubes right? Would push the spindles out creating a wider front end.
    No the track width is determined by the lca, the bottom of the strut merely moves inward, the top still stays in the same place, as does the balljoint, so the steering axis is maintained
  • Raven
    Raven
    Senior Member
    • 172

    #13
    Ok I see it now. Also, you said tested with turbo tubes. What about NA tubes?
    私♥フェアレディ・ゼット
    ・1984 300zx N/A
  • michaelp
    michaelp
    Senior Member
    • 9384

    #14
    $600-800 for Cheap S13 coils that arent going to blow in a month…rather you'll get a few months of use. Then $260 for these. Then modified/custom top hats to fit the Z31 properly. In just coilovers and these, you're already at the price of Powertrix/STANCE coils made for the Z31…so why not just buy those and have better coilovers?
    - VG30DET (HE341) 86 300ZX - 1982 280ZX Turbo - Headered NA 1986 300ZX 2+2 - 2000 Xterra -
  • G-E
    G-E
    Junior Member
    • 6320

    #15
    Mike stop trolling, you know you don't need z31 specific top hats, all you need is a drill…

    Aside from which, why do you want to limit the market to stance/powertrix? Why do you want people to get the impression that they are the only game in town? What if someone wants to buy megans or fortuneauto or cusco?

    If you don't want them, don't look at the thread