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Thread: Car Feels Unstable @ speed

  1. #1
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    Default Car Feels Unstable @ speed

    Guys,

    Had my SRI150 since early January and i love it to bits.

    Recently i had to get two tyres replaced on it (standard goodyear nct5)

    Since then there has been a judder at around 80mph, ive had the wheels into the place again and had them balanced, one was 5g out the other 40g, the guy corrected them and retested.

    Since then the judder has gone away but the car feels very twitchy at speed, sorta feels as if its jumping from side to side over small lines and small holes in the road - i only feel this at around 70-110.

    Anyone any ideas?

    *what should the standard pressures be on the tyres?
    *should i try swapping back to front?
    *should i buy an astra?

    Cheers

  2. #2
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    70-110km Mr police man
    32F 32R, loaded 32F 40R
    Swap the tyres mate and try. Any blance issues with be highlighter the faster you go. Worth getting the other 2 tyres balanced in case.

    The vectra will be more stable @ top end then the astra as longer wheel base.

    M

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    right guys, ive put the pressures down to 32 and 32 (from 35 and 36)

    car feels much more stable at speed and also in the twisties, took a detour home from work and drove it hard was fun, but the brakes smell a bit when pushed.....

  4. #4
    Regular Member pogo's Avatar
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    Vehicle : Audi

    Trim : A5

    Engine : 2.0 turbo petrol

    Year : 2009

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    Buy An Astra! R U Mental? Sort Those Tyres My Good Man And Forget Thoughts Of Astras !

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    Quote Originally Posted by vectrapogo
    Buy An Astra! R U Mental? Sort Those Tyres My Good Man And Forget Thoughts Of Astras !
    jeeez chill out man - seems to be sorted anyway, i hope

  6. #6
    Regular Member pogo's Avatar
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    Vehicle : Audi

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    Year : 2009

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    Hee Hee Hoped That Mini Rant Would Let You See The Error Of Your Ways Fella,have You Swapped The Wheels Yet And If So ,is It Better?

  7. #7
    Regular Member Steven's Avatar
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    glad its all sorted Ross , was going to make a comment about the speed but thought i would just get abuse back

  8. #8
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    Quote Originally Posted by gil16e
    glad its all sorted Ross , was going to make a comment about the speed but thought i would just get abuse back
    SPEED IS A BASIC REQUIREMENT OF EVERY DAY VECTRA DRIVING MY GOOD MAN!

  9. #9
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    LOL it is that mate

  10. #10
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    all on private road my dear friend......

    havent swapped tyres round but doesnt feel as bad and took it up a to around 12(cough) or somthing then hammered around the twisties and made the breaks a bit smelly....

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