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Best of both worlds

This is a discussion on Best of both worlds within the Suspension and Handling forums, part of the General Help category; My T/A is an all around car...I drive her to work on nice days (highway cruising); I go to the ...

  1. #1
    Sold: LS1 '85 El Camino ls1camino's Avatar
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    2000 Trans Am WS6 M6

    Best of both worlds

    My T/A is an all around car...I drive her to work on nice days (highway cruising); I go to the drag strip with my buddies; and I go on winding backroad cruises with my car club. I want to upgrade from my KYB shocks and Eibach Prokit Springs. I've had them on the car for 4 years and 10k miles. I was a collage kid when I bought them, and now that I'm graduated and making better money, I want to upgrade my suspension to the same level as my drivetrain.

    If money wasn't an issue, what shock/spring setup would you get?

    I was looking at the QA1 Double Adjustable Coilovers for all four corners, but I'm not sure what spring to get with them. Like I said, the car sees a little bit of everything, but if I had to pick ONE setup for the suspension, it would be for drag racing.

    Here is a quote from a vendor:
    Springs-
    275lb - Drag Racing
    300lb - Nice Ride & Handling
    325lb - Firm Ride, Great Handling/Cornering
    Is it a good or bad idea to mix spring rates? I was thinking 325lbs for the front and 275lbs for the rear...drag racing is supposed to have soft in the rear, correct? If it's not a good idea, I would drop the fronts to 300lbs, but I'm definitely not putting drag springs in the front.

    Opinions?

    On a completely separate note: If I was to run coilovers in the rear, would I still need to the run the stock style springs for ride height, or do the coilovers take care of that?
    2000 Pontiac Trans Am WS6 M6: 427ci LS3, Built T56, Moser 9" w/ 4.11 Gearing, Full Suspension, and 6-point Cage.
    2000 Pontiac Grand Prix GTP: Twincharged w/ a T67 Turbocharger
    2007 Chevrolet 3500 Dually Duramax: 3" Downpipe, Dual 4" Exhaust, EFILive Tuning

  2. #2
    ʢ ൧ ൨ ൩ ൪ ൫ ൬ ൭ ൮Ր Ց Ւ Փ Smittro's Avatar
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    The spring rates are mixed from the factory and so are the dampers/shocks..

    Front spring rates are always different than rear spring rates because of the front and rear weight differences..

    As far as what rate is right for your setup,, sorry no answer, it will depend on personal preferances..

  3. #3
    Member BadTA00's Avatar
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    Personally I'd go with Strano or LT1 Eibach springs and Koni or SLP Bilstein shocks.
    If the car is going to mainly a drag car running the stiffest available stock spring in the rear and the stock v-6 springs in the front would get you better results(from what I've heard).

    Here are spring rates to consider.

    www.angelfire.com/my/fastcar/suspension.html

    tech.firebirdv6.com/suspension.html

    If you go with the QA1s go with the 325 lb kit.
    Last edited by BadTA00; 07-11-2011 at 11:14 PM.
    2000 T/A-DMH Cutout, SLP Cold Air kit, FTRA/SLP Upgrade, SLP Bilstein, LT1 Eibach ProKit, Kuhmo PA31 Tires ,SLP Fan Switch, UMI Double Adj PHB w/ Roto-Joints, UMI LCARB, Strano 35/22mm Sway Bars , Magnecor KV85 Wires, Hurst Shifter, Lou's Short Stick.

  4. #4
    James Bond Spikito's Avatar
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    college*

  5. #5
    Sold: LS1 '85 El Camino ls1camino's Avatar
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    Quote Originally Posted by Spikito View Post
    college*
    haha...that's embarrassing

  6. #6
    ʢ ൧ ൨ ൩ ൪ ൫ ൬ ൭ ൮Ր Ց Ւ Փ Smittro's Avatar
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    I don't think I would run 3800 springs up front on an Ls1 car..

    Especially since there are a few different spring types for the V6er's..

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