Need front axle weights please

Discussion in 'High Tech Retrofits' started by Scarebird, Jul 18, 2016.

  1. Scarebird

    Scarebird Member

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    I am having rattle issues with the LS3 powered TA I have built. I am currently running 301 TA non-AC springs with one loop snipped off.
    Stock on rates these are 329 lbs/in., I estimate I am at 380 lbs/in after snipping a coil. Ride height is perfect. This is way too much for a mill that weighs 440 pounds vs close to 575 for a 301 and trunk mounted battery, lightweight starter, etc... My axle weight with 200 pound driver and full fuel is 1920 front, 1660 rear.

    What I am looking for is actual weights of the front axles and which motors, trans and options to build a database so I can build a spring that is suited for daily driving with an LS mill.
    Any real (not guess's or internet figures) are welcome.
     
  2. newschool72

    newschool72 Veteran Member

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    This isn't what you asked for but I can tell you my LS3, glass hooded, trunked battery, 72 Camaro handled and rode , even transferred wt near perfectly with Moroso trick springs with a coil snipped. That is a 212 in lb spring with a coil cut off, so.....225-230 in lbs ? It was a little soft without the Hotchkis sway bar connected, but was fantastic on all accounts when It was hooked up. Ive since added a 100 lbs or so with a turbo setup and am going to install a set of coil overs with 250lb springs.
     
  3. Scarebird

    Scarebird Member

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    actually that does help quite a bit - first hand knowledge here, thanks.
     
  4. 71RS/SS396

    71RS/SS396 Veteran Member

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    What shocks are you using? Imho the springs rates get blamed for poor ride quality when in fact the shocks and or binding suspension bushings are really the issue. I have a 750# front spring and 500# rear spring and I can set the shocks up so the car rides fantastic, a high quality shock can have a dramatic impact on ride quality. Fwiw the rear springs have the most impact on ride quality.
     
  5. Scarebird

    Scarebird Member

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    Konis in the front, Bilsteins in the rear.

    I ordered a set of Moroso "drag" springs, 230# units (47175). We shall see how they work.

    UPDATE: INstalled the new springs, about an inch higher (hopefully settles a bit) but the ride is MUCH better.
     
    Last edited: Jul 22, 2016

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