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Thread: Help! How far can I tweak my torsion bars?

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  1. #1
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    What's your measurment from the centerline of the front axle to the bottom of the fender clad???
    3" suspension lift, shocks: Rancho 9000, tires 33"x11.5", wheels 16"x8", offset= 0, no front sway bar

  2. #2
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    Quote Originally Posted by Maddawg View Post
    What's your measurment from the centerline of the front axle to the bottom of the fender clad???
    Hmmmmm....It's 18.5" from the center of the wheel centercap -- straight up to the bottom of the cladding.

    My ball-joints aren't flipped. (It's stock).

    But, when I cranked the T-Bars last fall, it only seemed like I could get another 4-5 full turns before it wanted to stop. I thought that would only get me another 1" or so....

    But you guys are talking 3-4" higher than mine. Sound's like I might have needed some thread cleaning to go further?

    Actually, I wouldn't go THAT high. I've considered a 1" lift front/rear. I really want to make sure I don't push the limits of the front CV-joints/boots.

    I'd pick longevity/reliability over lift. So, do I have that 1" w/o issue?
    2001 Ebony VX and 1989 Custom 383 Corvette

  3. #3
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    Quote Originally Posted by 89Vette View Post
    Hmmmmm....It's 18.5" from the center of the wheel centercap -- straight up to the bottom of the cladding.

    My ball-joints aren't flipped. (It's stock).

    But, when I cranked the T-Bars last fall, it only seemed like I could get another 4-5 full turns before it wanted to stop. I thought that would only get me another 1" or so....

    But you guys are talking 3-4" higher than mine. Sound's like I might have needed some thread cleaning to go further?

    Actually, I wouldn't go THAT high. I've considered a 1" lift front/rear. I really want to make sure I don't push the limits of the front CV-joints/boots.

    I'd pick longevity/reliability over lift. So, do I have that 1" w/o issue?
    I'm not sure what a stock measurement would be. Maybe VX KATT, Vx Sport or someone could chime in here and answer that. All I know is that I have a 3" suspension lift with the 22" measurement from the centerline of the axle to the bottom of the fender clad. (correct me if I'm wrong anyone)

    It seems to me that you are at stock height or slightly less. Did you jack-up you're car so the wheels were off the ground to relieve the load on the torsion bars when you torqued them??

  4. #4
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    Quote Originally Posted by Maddawg View Post
    It seems to me that you are at stock height or slightly less. Did you jack-up you're car so the wheels were off the ground to relieve the load on the torsion bars when you torqued them??
    Yes, it was up in the air. It only took a quick try with it on the ground to firgure out it would be way easier w/o being under load.

  5. #5
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    Quote Originally Posted by 89Vette View Post
    Yes, it was up in the air. It only took a quick try with it on the ground to firgure out it would be way easier w/o being under load.
    Ok, I guess all we can do is hang tight until someone with a stock suspension set-up can tell us what the dimensions are. BTW, thats one nice looking VX you've got. Are you the original owner?

  6. #6
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    Our front end is all stock. When we lift the rear, it kinda adds some height to the front without any adjustment.


    This pic is the day I install the 919 springs on the rear, the front was untouched (stock height) Stock 16" wheels on 255/65 R16. Always adjust the T bars with the front end up, suspension hanging. A little turn does go along way in height. Bounce it a few times in between adjustment.

    I checked the stock height on the other, looks like it is 19". However this is a used vx, others have messed with it. So I wouldn't call this OEM spec.

    Quote Originally Posted by 89Vette View Post
    Hmmmmm....It's 18.5" from the center of the wheel centercap -- straight up to the bottom of the cladding.

    My ball-joints aren't flipped. (It's stock).

    But, when I cranked the T-Bars last fall, it only seemed like I could get another 4-5 full turns before it wanted to stop. I thought that would only get me another 1" or so....

    But you guys are talking 3-4" higher than mine. Sound's like I might have needed some thread cleaning to go further?

    Actually, I wouldn't go THAT high. I've considered a 1" lift front/rear. I really want to make sure I don't push the limits of the front CV-joints/boots.

    I'd pick longevity/reliability over lift. So, do I have that 1" w/o issue?
    Last edited by VxSport : 02/03/2013 at 10:39 PM

    Life is better when you go Topless

  7. #7
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    Quote Originally Posted by 89Vette View Post

    But, when I cranked the T-Bars last fall, it only seemed like I could get another 4-5 full turns before it wanted to stop. I thought that would only get me another 1" or so....

    But you guys are talking 3-4" higher than mine. Sound's like I might have needed some thread cleaning to go further?
    I referred to this issue in my first post. This is from the Planetisuzoo torsion bar article:

    There are some cases where you may run out of threads to adjust, you will in these cases need to “re-index” your torsion bar(s). This isn’t typically necessary. To re-index you have to take your t-bar adjuster completely loose and take the t-bar out of where it attaches and rotate one end to pre-load it. Then adjust it as necessary.
    Check the threads to see if they're bottomed out or if they're just dirty. The big bolts can be pretty stubborn but an impact wrench & some penetrating oil will make the job much easier.

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