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Need input, zero traction 77 nova leaf spring

Discussion in 'Suspension, Chassis and Tire Tech' started by half-fast, Jul 22, 2015.

  1. half-fast

    Joined:
    Jan 1, 2009
    So i finally am getting power to the back wheels and cant get it to stick. Lq9 76mm 8psi 1.76 glide 3.73s, 275 nitto drag radials. So i just realized the rear leafs are completely shot and leans to the left. It had air shocks on it when i bought it so i ran with it. The shocks are the only thing holding the car up like five inches and 60 psi in them.

    I went to the track and i litterly couldnt even leave at idle without pedaling it three times to keep it straight. Went 12.5 at 114mph with a 2.4 60 ft.

    My only goal with this car is 10.99 whats it going to take to get me there on a budget. Can a new set of stock springs and some form of a anti wrap bar, adjustable rear shocks, 90/10 front shocks disconnect the front sway bar and see what it will do?

    Or am i going to need cal tracs and split monos to get me there on leafs? I just fucked up and put 6500 towards my school loans before i knew i needed more parts so my account is pretty tapped out
     
  2. Jo Diesel

    Joined:
    Nov 13, 2012
    If your car is up 5" with air shocks it is never going to squat. You need the suspension to work.
    How free is the front? Old junk hard rubber bushing? Really stiff shocks. The rear needs to squat and the front needs to lift. If the rear axle wraps it will lose traction. Build your own Cal-Tracks. DSCF0008-1.jpg #ad
    A guy I knew built his out of 2 tractor 3rd links for a 3point hitch and made the brackets out of flat stock.73 Cheby truck ran 9.90

    DSCF0008-1.jpg #ad
     
  3. half-fast

    Joined:
    Jan 1, 2009
    sweet thats kinda what i was looking for, ya when the shocks are aired up i can jump up and down on the back bumper and only get a couple inches travel so its def not squatting or working at all. All the rubber on this car has been replaced with polyurethane bushings, not real sure that was a good choice. stock front suspension with sway bar and shocks, was hoping a set of cheap 90/10's and remove the sway bar.

    going to call a local spring shop and see how much just to rearch the springs
     
  4. Chuck L

    Joined:
    Apr 6, 2011
  5. half-fast

    Joined:
    Jan 1, 2009
    Thanks for giving me something to read at work today ha but it seems both squat and separation will eventually unload the tires when the suspension settles. so either way the hit will take place and the time it takes to settle the car needs to be delayed as much as possible to the point that the car has accelerated enough and has enough traction to keep pushing the car without wheel spin once its unloaded.

    "If the rear of the car squats (is accelerated downwards), the first effect is to unload the rear tires. As the rear of the car reaches its lowest point, rear tire loading is increased.

    If the rear of the car rises (is accelerated upwards), the first effect is to increase the load on the rear tires. As the rear of the car reaches its highest point, the rear tires are unloaded.

    So, there are both gains and losses to be considered with either situation and they all take place within a very short time period."
     
  6. Disney Lincoln

    Joined:
    Feb 14, 2003
    For your goals, you own't need anything exotic. Definitely start with a good set of leafs, then see what it does.
     
  7. half-fast

    Joined:
    Jan 1, 2009
    Took them off last night and sent them to the spring doctor today to see if they can just rearch them for now and see what it will do.

    i want to build a trac bar like jo diesel's picture above. will having a solid link like that cause the leaf to bind? was thinking of doing the heim joint in the rear and a round bushing up front to give it a little cushion
     
  8. Jo Diesel

    Joined:
    Nov 13, 2012
    That is not mine. The person that made it says it works fine. I thought a rubber bushing on one end would be a good idea. This is mine that I built. 9E69AAE1-8B3E-4FBE-873C-D2CBD8CE66AB_zpsabljfilv.jpg #ad


    9E69AAE1-8B3E-4FBE-873C-D2CBD8CE66AB_zpsabljfilv.jpg #ad
     
  9. half-fast

    Joined:
    Jan 1, 2009
    Whats the benefit of going with longer bars instead of short ones to the spring mounts
     
  10. half-fast

    Joined:
    Jan 1, 2009
    and thats a goofy looking roof of your car ha
     
  11. Jo Diesel

    Joined:
    Nov 13, 2012
    I would think you would want the bars like the one in the picture. Seems like Longer bars would not cover the same arch as the leaf spring putting it in a bind
     
  12. Jo Diesel

    Joined:
    Nov 13, 2012
    Its a lot easier to take the wheels of and just roll it upside down ROFL
     
  13. half-fast

    Joined:
    Jan 1, 2009
    LOL so how to the big jacked up truck guys get away with the long bars that are like 6 feet long and connect under the drivers door without binding?
     
  14. Mnlx

    Joined:
    Sep 20, 2009
    Not sure if this is what you're asking, but the caltracs, or slide-a-links bind on spring wrap, but are allowed to move with normal spring compression.
     
  15. half-fast

    Joined:
    Jan 1, 2009
    yah i get that by the design of them, but just curious cuz i see the jacked up monster truck looking rigs and it seem that their bars all meet in the middle of the truck. does that not bind up their rear leafs?
     
  16. Mnlx

    Joined:
    Sep 20, 2009
    I'm sure they do bind, but they're typically mounted well below the leafs as they're underslung axles, and i'm guessing there's enough leverage to flex the spring during compression. Definitely not a good design. Denmah tried a set on their 2010 silverado, and they didn't last, broke the front mount iirc.
     
  17. half-fast

    Joined:
    Jan 1, 2009
    Gotcha, might just be easier to make a pair of slapper bars for it
     
  18. half-fast

    Joined:
    Jan 1, 2009
    Might be a dumb question but if i get my springs back and its still riding too low, could i just get longer shackles to pick it up some
    ?
     
  19. Rickracer

    Joined:
    Nov 19, 2012
    Yes, it does, but for their purposes, most don't even care, IF they even realize it.
     
  20. Disney Lincoln

    Joined:
    Feb 14, 2003
    No, they move up and down freely. It's the axle wrap they prevent.
     
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