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Thread: PI lowering spring advise

  1. #1
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    Default PI lowering spring advise

    Is it best to get the 45mm all round or 45 front / 40 rear.

    PI also recommend shorter shock absorbers are used with these springs. Can anyone advise on this?

    Thanks tom

  2. #2
    Regular Member danBoy's Avatar
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    Think mine are 45/40 rear shocks are standard and fronts are slightly uprated after market ones but cope fine tbh.

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    Regular Member parsco's Avatar
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    I think Big Rich did the same Tom. He didn't change his shocks either but they may wear out quicker.

    I went for the Eibachs as you don't need to change the shocks with them (depends on what your budget is though mate)

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    ive got the same springs, i used them on my standard shockers mate.

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    Regular Member Sean-2.2Direct's Avatar
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    Hi Mate big rich would have been ok as he has SRI shocks which are shorter all other vectra models apart from GSI and VXR have normal shocks not advisable to put 45mm srings on normal shocks as they will wear out very quick.

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    Quote Originally Posted by Sean-2.2Direct View Post
    Hi Mate big rich would have been ok as he has SRI shocks which are shorter all other vectra models apart from GSI and VXR have normal shocks not advisable to put 45mm srings on normal shocks as they will wear out very quick.
    Exactly what i was going to say
    Spot on !

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    Regular Member Sean-2.2Direct's Avatar
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    Quote Originally Posted by Gregg View Post
    Exactly what i was going to say
    Spot on !

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    Ex-Staff Full Member Taffyopel's Avatar
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    Depends what model your car is.

    I fitted Pi springs to my Sri and went with the 30mm springs as the SRi setup is down 15mm against a standard setup, so these brought it down another 15mm, on the original SRi shocks.

    No problems at all and the ride is still comfortable, not hard and harsh.

    Paul.


    Snowman, you got your ears on?

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    Default

    Dampers doing the same job over a shorter travel will defo wear out quicker....

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    so my vectra is an sri so will it be ok on 45mm. i would probably look to uprate the shocks in the future so as long as they are ok for 6 months or so

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