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Thread: "Emergency": Factory sport suspension questions

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    Default "Emergency": Factory sport suspension questions

    Hi.

    I've got a 2004 Estate 1.9 CDTI with factory fitted sport suspension (20mm lowering). Recently both front springs broke and since the rest of the strut were more or less gone I decided to buy all the parts new and assemble them, then just replace with the old ones. I bought:

    Struts/shocks and spax lowering springs.

    I thought I was smart to order springs with just 10mm more lowering than the factory springs, but it turns out the struts had some lowering built in as well and now it sits WAY too low, about a 10mm lower than it did with the old broken springs and the factory struts.

    My question is then, WHERE does the factory lowering come from? Shock, springs OR both???

    I'm at a loss of what to order and what to keep... I'm thinking keeping the old struts and go with the spax springs, but I'm not sure and I have to finish the car today...

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    Regular Member kenp's Avatar
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    Vehicle : Vectra C


    Engine : 2.2 Direct

    Year : 2004

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    The factory lowering is only the spring.

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    Regular Member BigWilko's Avatar
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    Vehicle : Signum

    Trim : Design

    Engine : 3.0 CDTI

    Year : 2005

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    I think you should let the masses decide if it is too low.

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    Regular Member keith1983's Avatar
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    Vehicle : Vectra 1.8 SRi

    Trim : SRi

    Engine : Z18XE

    Year : 2004

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    Maybe you could use it as a snow plough in the recent weather? Kenp is quite right in what he says though that it's the spring which supplies the lowering element,.

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    Default

    factory sports suspension is only 15mm lower than normal- if i remember correctly.

    lowering is only meant to be done by the spring- but if you go for more than a 30mm overall drop you def need shortened (not lowered) shocks, as the shocks cant dampen a spring if the are longer than it.
    http://www.ebay.de/itm/2-Sportstosda...ht_2381wt_1139
    I think it say the shocks will fit with springs that are 'up to a 60mm drop'. so maybe the strut is over compressing the spring and putting in under undo constant stress.....

    The standard shocks you've got will work ok with -30 springs but if its the springs that are wrong the standard shocks will bottom out and therefore not work properly. its a guessing game from my desk though lol

    good luck figuring it out :-)

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    Quote Originally Posted by keith1983 View Post
    Maybe you could use it as a snow plough in the recent weather? Kenp is quite right in what he says though that it's the spring which supplies the lowering element,.
    Lol, that was exactly what my mate and I was saying yesterday after we lowered it and it was still resting on the lift arms.

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    Default

    Thanks a lot for the great and informative replies guys, this forum is GREAT!

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    Quote Originally Posted by FLOB View Post
    factory sports suspension is only 15mm lower than normal- if i remember correctly.
    Hmm, I was sure it's 20mm, but I have nowhere to confirm it...

    Quote Originally Posted by FLOB View Post
    lowering is only meant to be done by the spring- but if you go for more than a 30mm overall drop you def need shortened (not lowered) shocks, as the shocks cant dampen a spring if the are longer than it.
    http://www.ebay.de/itm/2-Sportstosda...ht_2381wt_1139
    I think it say the shocks will fit with springs that are 'up to a 60mm drop'. so maybe the strut is over compressing the spring and putting in under undo constant stress.....
    Yes, the shock shaft is shorter, it will over compress the spring if a stock height spring is used.

    Quote Originally Posted by FLOB View Post
    The standard shocks you've got will work ok with -30 springs but if its the springs that are wrong the standard shocks will bottom out and therefore not work properly. its a guessing game from my desk though lol

    good luck figuring it out :-)
    Thanks, I have decided to try it with the old factory shocks, hopefully the springs will work and not be too short!

    Anyone know a place I can get the original springs and shocks? The factory lowering parts are a bit difficult to find and I'm having them shipped to Sweden so that limits the potential shops to buy from...

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    Quote Originally Posted by BigWilko View Post
    I think you should let the masses decide if it is too low.
    Alright, I will take a picture of it today before I tear it apart... But yes, it is too low when it's rubbing the wheelarches over every speedbump. Unless I drive it really slow though. Another issue is getting a lift under it, not to mention the wife wrecking it in the nearest pothole...

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