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Thread: AWD Rear Suspension differences (Strut / Springs)

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    AWD Rear Suspension differences (Strut / Springs)

    I/(We) need this info so what are the differences ?

    please correct me if Im wrong !



    Normal VR4 91-95 and 1995 spyder VR4 (with ECS)
    Rear Stock Spring Size 3 3/4" ID x 4 3/4" OD

    Cars w/ sunroof and/or '96-'99 without sunroof and 1996 Spyder VR4 (without ECS)
    Rear Stock Spring Size 3 1/4" ID x 4 1/4" OD

    the Factory Upper Strut Mounts are also different and the rear struts








    Stock Spring Rates:

    All units in N/mm (lbs/in.)

    Stock Spring Constants

    '92-'93 FWD AWD
    Front 30 (168) 39 (218)
    Rear 35 (196) 28 (157)

    '94+
    Front 29 (162) 38 (212)
    Rear 34 (190) 28 (157)

    Spyder
    Front 30 (168) 39 (218)
    Rear 35 (196) 28 (157)


    Shock Damping Forces (0.3m/s or 0.984ft/sec)

    ECS (all) Expansion Contraction
    Front Hard 2530(558) 1190(262)
    Front Med 1580(348) 1120(247)
    Front Soft 620(214) 970(214)
    Rear Hard 1710(377) 1010(223)
    Rear Med 1160(256) 880(194)
    Rear Soft 560(123) 670(146)

    Non-ECS Expansion Contraction
    Front 1080(238) 540(119)
    Rear 1000(220) 550(121)
    Last edited by mb7050; 02-16-2011 at 06:43 AM.

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    so can I use ECS upper mounts in my NON ECS car in this case 1996 spyder vr-4 ??
    I would have to use ECS struts then too but would it work ?
    Last edited by mb7050; 02-14-2011 at 09:38 PM.

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    Is there a height difference beetween ECS and NON ECS rear springs/struts ?
    Last edited by mb7050; 02-16-2011 at 06:41 AM.

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    Forum User Not Verified Feedback Score 2 (100%) jba3's Avatar
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    Quote Originally Posted by mb7050 View Post
    so can I use ECS upper mounts in my NON ECS car in this case 1996 spyder vr-4 ??
    I would have to use ECS struts then too but would it work ?
    I *think* the upper mounts are a different size on ECS vs Non-ECS. If you get replacement struts at 3SX that aren't for ECS, you still have to specify if the car was ECS or not, and I think that is why.

    I have never heard of "ECS Springs" or "Non ECS Springs", just for sunroof/no sunroof.
    1995 VR4 Coupe

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    this is what happens if you try to use Tein s tech lowering springs in your non ecs car(1996 Spyder Vr-4).
    Last edited by mb7050; 02-16-2011 at 06:34 AM.

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    ^thats the reason why Im asking this info. I would like to lower the spyder using lowering springs .

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    I'm Kind Of A Big Deal Feedback Score 8 (100%) Emilie@GZP's Avatar
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    DO you have any better pictures of what happened?
    Circa 2005... Oh my, how far I've come
    Quote Originally Posted by Emilie@GZP View Post
    gear wrenches = wrench with the spinny thing inside of the circle part?
    Current:
    2004 ML500 - Mommy Mobile
    1996 Ram 2500 V10 - Tow Vehicle
    1991 Stealth R/T Twin Turbo - Pink Parts, Billet GZP 747's
    1995 3000GT VR-4 - lawn gnome
    1999 3000GT SL - 7,436 miles
    1995 3000GT Spyder - garage ornament

    FOR SALE:
    1995 3000GT Spyder VR-4 Red, 80k miles

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    I think the issue is that the upper strut mount is simply too small.Of course the shop could have botched the install too.

    all I got :









    Last edited by mb7050; 02-17-2011 at 12:58 PM.

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