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Thread: pulsing feeling at higher speed

  1. #1
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    Default pulsing feeling at higher speed

    img etting this weird feeling in the car when im cruising along. if im sitting on the freeway doing 80-100km/h, there is a kinda pulsing noise/vibration throughout the car every 1 second or so.
    i noticed it kinda went away when i swapped wheels around, but i have changed them around again a while ago and its doing it again. would it be a wheel alignment issue? some of the wheels have some small weights on them, but do they need to be equal weight on each side of each axle? i dont know what theyre used for exactly

    1995 Manual HSV Clubsport
    Wade Cam :: 9.2:1 CR :: Pacemaker headers :: Twin 2.5" Exhaust :: VT Brakes
    1991 Supercharged VN Berlina
    9 PSI SC14 Intercooled :: Genie headers :: Twin cats :: HM Twin 2.25 exhaust :: 3.45:1 LSD




  2. #2
    minux's Avatar
    minux is offline Infidel Bear
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    Are they directional tyres? If so check they havent put them on backwards, thats teh noise they make when they are.
    "Be who you are and say what you feel, because those who mind don't matter and those who matter don't mind."
    - Theodor Seuss Geisel



  3. #3
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    yeah theyre on the right way

    1995 Manual HSV Clubsport
    Wade Cam :: 9.2:1 CR :: Pacemaker headers :: Twin 2.5" Exhaust :: VT Brakes
    1991 Supercharged VN Berlina
    9 PSI SC14 Intercooled :: Genie headers :: Twin cats :: HM Twin 2.25 exhaust :: 3.45:1 LSD




  4. #4
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    bump. still got the same problem and not sure where to start

    1995 Manual HSV Clubsport
    Wade Cam :: 9.2:1 CR :: Pacemaker headers :: Twin 2.5" Exhaust :: VT Brakes
    1991 Supercharged VN Berlina
    9 PSI SC14 Intercooled :: Genie headers :: Twin cats :: HM Twin 2.25 exhaust :: 3.45:1 LSD




  5. #5
    minux's Avatar
    minux is offline Infidel Bear
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    The weights may not be equal due to each wheel balancing slightly differently.

    Drop by a beaurepaires and see what they say? It could just be the wear on the tyres perhaps?
    "Be who you are and say what you feel, because those who mind don't matter and those who matter don't mind."
    - Theodor Seuss Geisel



  6. #6
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    1995 HSV Clubsport T5, 1991 VN Berlina

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    hmm tyres are new though. might have to take it to a tyre shop if thats the problem. when i can be bothered ill drop by a servo and check all the tyre pressures too

    1995 Manual HSV Clubsport
    Wade Cam :: 9.2:1 CR :: Pacemaker headers :: Twin 2.5" Exhaust :: VT Brakes
    1991 Supercharged VN Berlina
    9 PSI SC14 Intercooled :: Genie headers :: Twin cats :: HM Twin 2.25 exhaust :: 3.45:1 LSD




  7. #7
    VL-187's Avatar
    VL-187 is offline ZZZZZZZZTUUUTUUUTUUU
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    might of lost a weight off one of ur wheels?? or slight buckle in one of them??
    i had big trouble gettin my wire wheels spot on with balancing, so ended up getting a on-car balance and it fixed it straight away..

  8. #8
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    hmm i have a whole heap of 5g and 10g wheel weights spare. i should stick some on trial and error and see if that fixes it haha

    1995 Manual HSV Clubsport
    Wade Cam :: 9.2:1 CR :: Pacemaker headers :: Twin 2.5" Exhaust :: VT Brakes
    1991 Supercharged VN Berlina
    9 PSI SC14 Intercooled :: Genie headers :: Twin cats :: HM Twin 2.25 exhaust :: 3.45:1 LSD




  9. #9
    VL-187's Avatar
    VL-187 is offline ZZZZZZZZTUUUTUUUTUUU
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    yeh no harm in trying if u can be bothered lol, most likely one of the fronts..
    goodluck with it..

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