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19 inch BBS LM reps

Discussion in 'A4/S4 forum(B5 Chassis)' started by phoenixv6quattro, Jun 10, 2010.

  1. phoenixv6quattro
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    phoenixv6quattro staylowmovefast

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    [Jun 10, 2010]
    #1
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  3. aragorn
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    aragorn "Stick a V8 in it!" Staff Member Moderator VCDS Map User

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    [Jun 10, 2010]
    I think if you stuck to the right width and offsets they'll go on just fine, as the extra diameter would be taken up by fitting a smaller tyre.

    Basically, if an 8x18 rim goes on, then a 8x19 rim should go on just the same, as you'd drop the tyre from a 40 profile to a 35 or 30 to get the rolling radius correct and the overall package would be geometrically the same

    Problem is a normal B5 doesnt really suit wheels any wider than 8", and i would imagine most 19" rims will end up being more like 8.5 or 9" wide, at which point you've got them sticking out with stretched tyres etc.

    8.5's might just about go, but i'd want to see 8.5's on a car, and find out what offset/tyre size etc was being used before i made the decision.
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  4. phoenixv6quattro
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    phoenixv6quattro staylowmovefast

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    [Jun 10, 2010]
    Thanks mate. TBH I will prob just stick with 18's if I buy some. I've just sold some real Lm's, and wish I would have kept them now (however, it would have been kind of daft the car wearing rims that are more expensive than it!).
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  5. Geeman
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    Geeman Low Life

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    [Jun 11, 2010]
    I had 8.5's on the B5 in the form of the Fat5's... they fitted with zero problems!
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  6. aragorn
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    aragorn "Stick a V8 in it!" Staff Member Moderator VCDS Map User

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    [Jun 11, 2010]
    Thats good to know, what was the final offset? IE wheel offset plus any spacing?
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  7. Geeman
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    Geeman Low Life

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    [Jun 11, 2010]
    I ran 10mm on the rear and they were ET45/48 - something like that.

    Fronts were fine without spacers... even with the A4 on the floor.
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  8. aragorn
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    aragorn "Stick a V8 in it!" Staff Member Moderator VCDS Map User

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    [Jun 11, 2010]
    interesting.

    Do you think the fronts would have fitted with a 10mm spacer also (given those wheels on ebay are ET37)?
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  9. Geeman
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    Geeman Low Life

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    [Jun 11, 2010]
    I would think an ET37 would need a 10mm spacer on the fronts. You'd probably need a 20mm spacer on the rear too!

    I'm running ET45's with 10mm on the front and 15mm on the rear at the moment, but will probably be running 5mm's on the front soon as they catch ever so slightly on the arch.
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  10. aragorn
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    aragorn "Stick a V8 in it!" Staff Member Moderator VCDS Map User

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    [Jun 11, 2010]
    I think you've got the numbers the wrong way round mate...

    ET37 plus a 10mm spacer would give ET27

    so when you had the Fat 5's, you were running ET48 on the front and ET38 on the rear.

    Now your running the equivalent of ET35 on the front and ET30 on the rear. Are your current rims also 8.5"?
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  11. phoenixv6quattro
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    phoenixv6quattro staylowmovefast

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    [Jun 11, 2010]
    My Porsche alloys are et 34. I am running 15mm spacers on the rear (so et 19) and 10mm spacers on the front (so et 24). Its also 40mm lower than the sports setup. I have had no problems at all, no rubbing, no knocking.....Nothing. Its wearing 225's and the tyres actually sit level with the arch.
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  12. aragorn
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    aragorn "Stick a V8 in it!" Staff Member Moderator VCDS Map User

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    [Jun 11, 2010]
    but they're only 7.5" wide?

    obviously if you make the rim an inch wider and keep the offset the same, it'll stick out half an inch more, and stick in half an inch more too.

    If your tyres are currently level with the arch, then you'd want to increase the offset by ~13mm, to keep the "Sticky-outeyness" the same. Problem then is the clearance on the inside!
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  13. phoenixv6quattro
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    phoenixv6quattro staylowmovefast

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    [Jun 11, 2010]
    I've been quite lucky with getting alloys to fit because I have an array of spacers, bolts and tyres to play with, so if something dosn't fit the first time you bet your arse it will fit the second! I try not to think too much about it,its not worth it.
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  14. aragorn
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    aragorn "Stick a V8 in it!" Staff Member Moderator VCDS Map User

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    [Jun 11, 2010]
    Ye, but you can only space in one direction.

    If the stock wheel is sticking out past the arch, theres nothing you can do to fix it, short of sticking the alloy in a mill!
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  15. phoenixv6quattro
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    phoenixv6quattro staylowmovefast

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    [Jun 12, 2010]
    Don't worry Aragorn, I wan't exactly planning on having genuine RS4's, so theres no way in hell anything is going to stick out past the arch without spacers......
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  16. aragorn
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    aragorn "Stick a V8 in it!" Staff Member Moderator VCDS Map User

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    [Jun 12, 2010]
    Lol ye, but its useful to ascertain the lowest offset thats viable in a given width before looking.
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  17. phoenixv6quattro
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    phoenixv6quattro staylowmovefast

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    [Jun 12, 2010]
    lets face it mate, not many alloys (oe or aftermarket) come with ultra low offsets. Common sense, as always, prevails.
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