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  1. #1
    sat1983's Avatar
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    Wheels- I don't get it!!!!!!!

    Can anyone explain what all the numbers mean??

    What's this ET all about???

    What wheels fit the A3?? Most i've seen are ET43 and ET45?? Which genuine OEM wheels scrub?

    Some guy on edition 38 forum is selling genuine RS6 wheels (18") because they are scrubbing on his mk5?? Surely the arches on the mk5 golf are the same as the A3 8P?? Why would they scrub??

    Don't worry maars still on for those spokes!!
    Ex 2006 A3 2.0 TDI owner

    2010 Polo GTI 6R

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  3. #2
    Dreaming of Boost

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    Quote Originally Posted by sat1983
    Can anyone explain what all the numbers mean??
    Wheel and Tyre Bible!
    "Some of us are decent people who want to stay out of the emergency room, but still
    blast through neo-gridlock traffic in residential districts whenever we feel like it....
    For that we need fine Machinery." -Dr. Hunter S. Thompson (1937-2005)

  4. #3
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    sat1983 - the RS6 wheels are my old wheels, I had these on my 2004 A3 2.0 tdi sport and they fitted perfectly.

  5. #4
    sat1983's Avatar
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    Why dont they fit on a mk5 tho- or was this an excuse on his part!
    Ex 2006 A3 2.0 TDI owner

    2010 Polo GTI 6R

  6. #5
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    Offset Guide I wrote for my Vaux Corsa site. It explains what it is etc just obviously ignore the corsa bits lol.

    http://corsa-c.co.uk/forum/faq.php?f...q_wheel_offset
    Si

    2009-Current | Porsche Boxster 2.7

    2007-2009 | Audi A3 2.0 TDI 170 S-Line

    2005-2007 | Audi A3 1.6FSI Sport

  7. #6
    maars's Avatar
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    After much searching I've just got my 19s.

    My OEM 18s are 7.5x18ET54 (which hopefully sat1983 will be buying).
    My new 19s are 8.5x19ET48. But with the extra width I'm worried they'll stick out the front arches. Help!

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    Quote Originally Posted by maars
    After much searching I've just got my 19s.

    My OEM 18s are 7.5x18ET54 (which hopefully sat1983 will be buying).
    My new 19s are 8.5x19ET48. But with the extra width I'm worried they'll stick out the front arches. Help!
    Think you will find that your new wheels will stick out more by 6+25= 31mm (et diff+1j)
    Might have been safer to have kept width the same then the et diff would have only been 6mm (further out) then used spacers to increase track width.
    Hope they fit

  9. #8
    maars's Avatar
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    Unfortunately they only came in ET48 an 8.5J width. Bugger.

  10. #9
    sat1983's Avatar
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    Ouch Maars can't you try them for size asap? I would!! All this ET talk is much more difficult than I thought!
    Ex 2006 A3 2.0 TDI owner

    2010 Polo GTI 6R

  11. #10
    maars's Avatar
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    sat1983 - that's what I plan to do this weekend! Fingers crossed they'll fit otherwise they'll be up for sale pronto.

  12. #11
    sat1983's Avatar
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    Do I gather that if they don't fit- no 20 spoke wheels for sale?
    Ex 2006 A3 2.0 TDI owner

    2010 Polo GTI 6R

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    Quote Originally Posted by maars
    Unfortunately they only came in ET48 an 8.5J width. Bugger.
    Did your supplier say they would fit?

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    What size tyres are fitted

  15. #14
    sat1983's Avatar
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    Disptic- what ET are we looking for on an A3 8P?
    Ex 2006 A3 2.0 TDI owner

    2010 Polo GTI 6R

  16. #15
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    Think the standard et is 45-49 but try this site use the wheel wizard should give various dimensions for diff models
    http://www.bkracing.co.uk/

  17. #16
    sat1983's Avatar
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    But what does this mean, how would ET 44 or 50 fit then?? It's that i don't get!
    Ex 2006 A3 2.0 TDI owner

    2010 Polo GTI 6R

  18. #17
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    Quote Originally Posted by sat1983
    But what does this mean, how would ET 44 or 50 fit then?? It's that i don't get!
    If you look at the wheel wizard on that site and I used my 8P S3 as model of car it gives me an et of between 45-56 now I assume from that my maximum et will be 56 (anymore and the wheel/tyre combination will rub on the suspension leg)
    In the perfect setting I would want to keep the centre of my wheel as near to manufactors as possible (to reduce load on bearings etc)
    If I say 56 et is the most I can have (suspension leg in the way)I can move the wheel out (away from the suspension leg by using spacers,so in some cases its better to have higher et than standard)
    The next issue is the bodywork I then increase wheel width (j size) which brings the wheel closer to the bodywork
    Wheel supplies will try to keep the wheel centreline in the same place
    so will tend to increase the et (if poss)at the same time as increasing the wheel width (j size)
    Also as they change the wheel size/width on the wheel wizard the tyre width will change as well (there are again different width tyres that will safely fit the same width wheel)

    I have confused myself now
    Last edited by dipstic; 25th September 2007 at 13:50.

  19. #18
    maars's Avatar
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    Quote Originally Posted by sat1983
    Do I gather that if they don't fit- no 20 spoke wheels for sale?
    Alas, yes. But let me trial fit the 19s first!

  20. #19
    maars's Avatar
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    Quote Originally Posted by dipstic
    What size tyres are fitted
    No supplier - they're s/h Audi 19s which I hoped would fit. I was going to run 225/35x19 tyres.

  21. #20
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    For my car 8P S3 I would assume from that wheel wizard my max wheel that would fit will have ET of 56 x 8j x19 if we then look at marrs wheels

    ET of 48 poss diff of 8mm (further away from suspension leg)
    8.5j against 8j diff of 13.5mm (wider nearer bodywork) so add the two together 21.5mm nearer the bodywork which means that they might rub on full lock or when loaded up or over bumps
    I say might because a few minor mods to bodywork might give enough room for the wheels to clear

  22. #21
    maars's Avatar
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    Just run the check on the CarBible guide:-
    OLD - 225 tyre width, ET54
    NEW - 225 tyre width, ET48
    "The edge of the new tyre will be 6mm further away from the inside of the wheel well and suspension components, and 6mm further out from the edge of the bodywork."

  23. #22
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    Now add diff between 8j and 8.5j

  24. #23
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    So when are you going to fit them

  25. #24
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    Damn I was going out for a drive give myself one

  26. #25
    maars's Avatar
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    Quote Originally Posted by dipstic
    Now add diff between 8j and 8.5j
    Worse - it's the difference between 7.5J and 8.5J
    Trying them this weekend.

  27. #26
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    good luck look forward to pics

  28. #27
    sat1983's Avatar
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    How much do different wheels weight? Any websites with the info?
    RS6 wheels?
    S3 wheels?
    Sport wheels?
    SE wheels?
    etc etc...

    Which are lightest??
    Ex 2006 A3 2.0 TDI owner

    2010 Polo GTI 6R

  29. #28
    maars's Avatar
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    I've got my fingers crossed for fitting them tomorrow. After seeing this...
    http://forums.vwvortex.com/zerothread?id=3464435
    ..I'm hopeful seeing as how they are 8.5x19ET45 and the car is slammed!


 

 

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