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Thread: problem with car 2 months after lowering

  
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    Unhappy problem with car 2 months after lowering

    i had my astra 5 dr sri lowered by 60mm on new shocks and springs 2 months ago.
    also had a set of 2nd hand 17" alloys fitted.
    3 tryes are 215/40/17 and the other one is 205/40/17.
    after doing it all i got the tracking checked and it was out by 4 degrees.
    eveything has been fine until a week ago when it started to feel like a wheel bearing was on its way out or one of my wheels was loose.
    so checked all the shock bolts n they were ok n theres no play in the shocks or the wheels to incate that a bearing or anything else was gone.
    so put wheels back on and done then up to tourque n checked again 2day and they are all tight.
    the ride is very bumpy know but guessing thats just part of lowering a car as the springs n shocks are shorter so less to move.
    i dont know if this normal 4 a lowered car to feel like this or if i have the 2 diff size front tyres and a big boot build.
    or if i need to change my tyre pressures. there 36psi all round at mo.
    or anything else that i cld check that mite be wrong.
    could the front camber be the problem due to lowering?
    any help would be gert lush as its doing my head in know
    lol

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    first of all - which corner is the mismatched tyre on? please dont tell me its on the front!!

    secondly, what shocks are fitted.... non-uprated shocks will be absolutely gash with 60mm springs on and no doubt you're experiencing problems!!

    camber will more than likely be out at the front with such a big drop - this is easily overcomed by using camber adjustment bolts - readily available from LMF and the likes - i run these on mine.

    what wheels are u using? presume aftermarket and if so are u using the correct spigot rings? if not using any at all.... bingo!

    EDIT: just re-read and u say the mismatched tyre is on the front!!!!!!!!! thats just stupid - get it on the back pronto and see how things go - better still why not get the correct size?

    oh and ur also running the wrong tyre pressures too! RTFM if u have one

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    As above, though you say new shocks too so assuming they are uprated it'll be down to dangerously having different tyre sizes, bad camber from the lowering needing set, and incorrect choice of tyre pressure.

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    i have a gmax spring and shock set fitted so the match up 2gher.
    would the camber be causeing it?
    fox aftermarket alloys with the correct spigot rings fitted.
    would the missmached trye cause that?
    what pressures should they be?
    what does rtfm mean?

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    Incorrect camber and mismatched tyre sizes will cause very wierd handling!

    Tyre pressures are usually around 30-32 on the front, 28-30 on the rear. 36psi is way too high.

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    hijack but there aint a word restriction on here so please use correct english if thats possible as your abbreviations are more than a little confusing and just plain daft!

    camber, mismatched tyres, pressures all contribute

    i still am more than a little dubious as to the gmax shocks being upto the job using 60mm springs personally.

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    they are matched to the springs i have fitted
    so if i get a new tyre , what would u set the trye pressures at?
    and fit the camber bolts to front and it should be alot better then right?
    what bout the camber on the rear?
    could the 2nd adjust in the tracking bring all these problems to light?

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    No camber needed on rear, just front, and you'd need a garage to set it really though a camber gauge isn't bad if you can get hold of one.

    Tyre pressure is dependent upon the car/engine size. My Z16XE 3dr hatch has 31psi front/28 rear for normal in car weight for example.

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    i have a z16xe sri , 5 door hatch.
    has a big boot build so would that matter?
    so if i get those bits changed it shld be ok n handle like it should do.

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    would 32 front and 28 rear be ok for my car then?
    just ordered some camber bolts n see were we go from here
    thanks for your help so far lads

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