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Thread: Is it bad to put lowering springs without changing the dampers?

  
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    jps's Avatar
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    Is it bad to put lowering springs without changing the dampers?

    My astra looks like an ATV, so I tough of lowering it a bit (30mm maybe).
    Lower springs are also harder right? What happens if I swich springs and keep the stock dampers? (Opel Astra G sport)

    Cheers!

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    Depends how low you go... Up to 40mm is OK depending on current condition of shocks...
    Mr Sploodge, Accept No Imitations!

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    4mm... that low eh sploodge

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    Arse!!

    Quote Originally Posted by monolith View Post
    4mm... that low eh sploodge
    Mr Sploodge, Accept No Imitations!

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    Personally I think 30-35mm is the max so your choice is fine. No lower though or you'll be blowing seals etc.
    52 Astra G 1.8, 18" Mille Miglia alloys, 325mm Brembo 4 pot conversion, Coupe leather interior, Raid strut brace, Whiteline rear ARB, Irmscher bits (skirts, Carbon steering wheel, Bonnet extension, M3 mirrors, boot & roof spoiler), Reiger Rear Diffuser & Front Bumper, Koni Adj. dampers, 35/30 Vogtland springs, Duplex quad exit ASCAR stainless exhaust.

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    To be really fine about it any lowering is going to lower (excuse the pun) the life of your dampers as they are set for the original spring height. Be honest with yourself, if your going to the troube of fitting lowering springs its only a slightly bigger cost ot fit the proper rated dampers, thus saving you time and effort fitting them again at a later date.

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    Standard and shortened dampers have the same "bump" travel, it's the "rebound" travel that's different.

    Lowered springs are always higher rate than standard, otherwise you'd hit the bump stops all the time, so you really need uprated shortened dampers to match the higher rate shortened springs.

    Doubling the work to replace front dampers separately from the front springs is very counter-productive but if funds are tight leave the rear dampers as standard until you can afford uprated ones.
    Maintains:- Vectra Design 1.9CDTi
    Drives :- Hyundai Santa Fe


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    Quote Originally Posted by Ruperts Trooper View Post
    Standard and shortened dampers have the same "bump" travel, it's the "rebound" travel that's different.

    Lowered springs are always higher rate than standard, otherwise you'd hit the bump stops all the time, so you really need uprated shortened dampers to match the higher rate shortened springs.

    Doubling the work to replace front dampers separately from the front springs is very counter-productive but if funds are tight leave the rear dampers as standard until you can afford uprated ones.

    Exactly......

    Just to add too, the rebound is also what will help stop the car from leaning round corners as it will help stop the outside from lifting.... So just by adding lowering springs you wont feel the full handling benifit as if you changed the lot with shortened dampers....
    Arden Astra GSI - Phase 3.5

    EDS Phase 3.5 288 BHP 340 FT/LB

    Inlet cam and Dbilas manifold.

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    Quote Originally Posted by Enkidu View Post
    Exactly......

    Just to add too, the rebound is also what will help stop the car from leaning round corners as it will help stop the outside from lifting.... So just by adding lowering springs you wont feel the full handling benifit as if you changed the lot with shortened dampers....
    My INSIDE tyres lift while cornering - have I got it set up wrong?
    Maintains:- Vectra Design 1.9CDTi
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    Yeah your right I was tired this morning lol....
    Arden Astra GSI - Phase 3.5

    EDS Phase 3.5 288 BHP 340 FT/LB

    Inlet cam and Dbilas manifold.

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