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Thread: Bottoming out??

  1. #1
    Regular Member Penfold's Avatar
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    confused Bottoming out??

    Following on from other threads and the subject of new springs settling i` ve come to the conclusion my shockers are bottoming out.They re B4s and when i fitted them they looked slightly longer than the SRi shocks but i thought nothing of it but now the springs have settled if i hit a pot hole or bump at anything above about 20mph the bang is harsh to say the least.Is there a way of telling for sure if they are and whats the solution ( which shocks etc) ?

    Cheers

  2. #2
    Regular Member EURO G's Avatar
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    same problem here mate with b4s

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    Regular Member john_k_sri's Avatar
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    Vehicle : Insignia Grand Sport

    Trim : SRI VX-LINE NAV

    Engine : 1.5T (165)

    Year : 2018

    Mileage : 37000

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    No problem with B4's and standard VX springs on the rear of mine.

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    Regular Member parapaul's Avatar
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    The B4 is designed as a direct replacement for the STANDARD dampers, the ones that are fitted to non-sports suspension. So yes, they are longer than the original SRi shocks but will doubtless work fine with the Vx -15mm drop.

    To match shorter springs, like Eibach, PI, whatever you use to lower the car, ideally you need the B6 which is a shorter and stiffer damper. However, instead of £40 each they're about £130 each. I'm saving already...

    Expensive hobby, this modding malarky....

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    Regular Member EURO G's Avatar
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    looks like coilovers for me anyone for my 40mm h&rs and b4 shocks

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    Regular Member Kyser143's Avatar
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    not had any probs with my b4s on a sri...will try it over a speed bump at some speed see what happens.

  7. #7
    Vectra-C Obsessed Poster Drinky's Avatar
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    I had this when i changed my struts and springs but it was my own fault as i had not replaced the bump stop i presume you have re-fitted it when you changed the struts ???

    Back in a V6 !!!!!!!!!!!! And lovin it !!!

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