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Wheel offset

Discussion in 'Bay Tech Clinic' started by Dudo, Feb 16, 2009.

  1. Dudo

    Dudo New Member

    Messages:
    462
    Location:
    Sippy Downs Sunshine Coast
    Hello all

    Just need to know what offset is needed on a lowered 74 bay? I have a set of fuch rep 5.5x15 and have found the rear ones stick out to much, so cant put them on. tyres Tried 205 65 15 to big so tried 195 65 also to big. Do these rims come in a different offset for the rear?? They would be fine if it wasn't lowered. the offset reads et6.

    cheers jono
     
  2. jon ward

    jon ward Active Member

    Messages:
    5,752
    Location:
    Travelling Australia
    Offset is 41P for bays.
    Mine is lowered about 6 inches with 235/45/17 and have no problems with the guards.
     
  3. Dudo

    Dudo New Member

    Messages:
    462
    Location:
    Sippy Downs Sunshine Coast
    Yeah i thought i would have no problems. The rims i have are the ones Roy stocks ,so i thought they would fit but they seem to stick out to much and wont go into the guard. the front is fine .does any one know if these rims come in different offsets. the only numbers say et6 is that the offset? Might be some rims for sale
     
    Last edited: Feb 16, 2009
  4. Roy

    Roy Administrator Staff Member

    Messages:
    5,548
    Location:
    Mudgeeraba, Qld
    The fuch rims work with 185x65's I had 175x65s on peachy, gave about 10mm gap
    Go to 205 on any 5.5 inch wheel and you will increase the body roll
     
  5. jon ward

    jon ward Active Member

    Messages:
    5,752
    Location:
    Travelling Australia
    How about a 195/50/15?
    Wide tread but with a narrow side wall for cornering?
     
  6. Dudo

    Dudo New Member

    Messages:
    462
    Location:
    Sippy Downs Sunshine Coast
    when you Drop wheel diameter Does this affect the revs of the motor and the speedo at all
     
    Last edited: Feb 16, 2009
  7. jon ward

    jon ward Active Member

    Messages:
    5,752
    Location:
    Travelling Australia
    When going down in rim size, yes it will increase the revs and speedo.
    Thats why you try to compensate with your tyre choice.
     
  8. Dudo

    Dudo New Member

    Messages:
    462
    Location:
    Sippy Downs Sunshine Coast
    Thanks for your help Jon and Roy will try a few things out tomorrow. What was the original size rim and Tyre that kombis came out with?
     
  9. jon ward

    jon ward Active Member

    Messages:
    5,752
    Location:
    Travelling Australia
    185/14 Uniroyal Steel Cat
     
  10. syncro

    syncro Well-Known Member

    Messages:
    9,914
    Location:
    Southern Highlands
    14x5.5

    185x14
     
  11. Dudo

    Dudo New Member

    Messages:
    462
    Location:
    Sippy Downs Sunshine Coast
    So if i went 185 x 65 x 15 the diameter would be 24.46 inches and the standard wheel and tyre set up 185 x 80 x 14 with a diameter of 25.65 inches that means speedo would be out and top end speed would be off not to mention the revs. A 195 x 50 x 15 is 22.67 inches that way off . Might need to get a different offset rim for the rear
     
  12. jon ward

    jon ward Active Member

    Messages:
    5,752
    Location:
    Travelling Australia
    Dont forget your allowed 10% leeway with speedo accuracy.
    One inch wont make too much of a difference.
     
  13. Dudo

    Dudo New Member

    Messages:
    462
    Location:
    Sippy Downs Sunshine Coast
    Will it affect my revs much at top end , as the 1800 revs a bit now doing 100 don't want the old girl to have a valve attack:lol:
     
    Last edited: Feb 17, 2009
  14. jon ward

    jon ward Active Member

    Messages:
    5,752
    Location:
    Travelling Australia
    Nah, she will be right mate.

    If your worried, find yourself a rev limiting rotor button, I got one in my zombi, only allows the motor to rev to 5500rpm then retards the timing.
     
  15. Dudo

    Dudo New Member

    Messages:
    462
    Location:
    Sippy Downs Sunshine Coast
    That sounds like an idea, where do you get one of those from and are they easy to fit??

    cheers jono
     
  16. jon ward

    jon ward Active Member

    Messages:
    5,752
    Location:
    Travelling Australia
    Your local VW mechanic should have some or be able to get you one.

    Easy to fit, simply remove dizzy cap, then remove rotor button, place new rotor button on dizzy shaft making sure it locates properly then put the dizzy cap back on.

    Now rev motor to hearts content and feel secure it will not blow up......Soon:)
     

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