Torsion bars?

Discussion in 'Suspension/Chassis' started by Radchadtrinidad, Jul 27, 2015.

  1. MrDinkleman

    MrDinkleman Addict

    Joined:
    Feb 1, 2013
    Messages:
    552
    Likes Received:
    113
    Location:
    SoCal
    Truck:
    1988 standard cab, long bed
    And White Trash beat me... :D
     
  2. Juicyy

    Juicyy Member

    Joined:
    Jun 21, 2015
    Messages:
    37
    Likes Received:
    8
    Location:
    Norcal
    Truck:
    1993 single cab 22re 5sp rwd
    i gotta stop taking acid during the week! :shrug:
     
  3. Litneon

    Litneon Super Moderator Staff Member

    Joined:
    Mar 29, 2007
    Messages:
    2,414
    Likes Received:
    50
    Location:
    Cocoa, FL
    Truck:
    94 xtra cab
    Intersting thing though...

    WhiteTrash, MrDinkleman, and YOguyDA, are right. The only point that I take issue with in aaron_sk's response is that a torsion CAN be progressive.

    By tapering the bar, you can allow the first part of the bar to twist easier than the next section which will twist easer than the next section and so on. I've only heard of it in long travel torsion bar setups for desert racing, but never bothered to check either the stock bars or the Sway-a-ways that I ran for a few years.
     
  4. jetas

    jetas Grand Toyotaholic

    Joined:
    Mar 26, 2009
    Messages:
    6,655
    Likes Received:
    1,093
    Location:
    Oxnard, CA
    Truck:
    72.5 Hilux
    Everyone has their own opinion. And i understand everyones ideas, but anyone can go push down on the front end on a stock height truck, lower it an inch and push down on it a few times again and it WILL be softer. Why? Because the bar is relaxed a bit(some preload has been taken off the bar)

    It is what it is.
     
  5. White Trash

    White Trash Toyotaholic

    Joined:
    Jan 26, 2011
    Messages:
    1,779
    Likes Received:
    95
    Location:
    Eastern WA
    Truck:
    89 auto cross beater
    That isn't preload. That's the angle of the lower arm changing. When the truck is at stock height the lower arms are pointing slightly down from the torsion bar. When you push down on the truck the surface of the tire tries to push outward against the road until the angle of the lower arm is level. Once the arm is level and above there is a transition to the tire surface from skidding outwardly against the road to neutral then inwardly due arch of suspension travel. Remember the tires don't move straight up and down, they gain negative camber as the suspension compresses.
     
  6. Juicyy

    Juicyy Member

    Joined:
    Jun 21, 2015
    Messages:
    37
    Likes Received:
    8
    Location:
    Norcal
    Truck:
    1993 single cab 22re 5sp rwd

Share This Page