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| D3 - Wheels and Tyres Refurbing, center caps, tyre brands, tyrefitters - discuss it here |
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#1
28th November 2014, 06:49 PM
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20" wheels offset question
What would be a correct offset for 20" wheels?
Thought a8 takes everything between 35 and 45 I just got a nice set of 20's and they don't fit  Front is 8.5J ET42 with 255/35 tyre (they don't clear calipers) Rear is 10J ET45 with 295/30 tyre (they don't clear caliper literally by a hair) 
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#2
28th November 2014, 07:49 PM
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OK, deep breath lol
The standard 20" wheel fitment for a D3 is a 9Jx20 ET46. From memory with a 275/35R20 tyre Looking at the wheels you've mentioned: the fronts should give 10mm additional clearance on the inside, but be more inset at the outside due to the narrower wheel (compared to a factory 20) so spacers should sort that. Rolling radius is 2% out from stock The rears will be 12mm closer on the inside and stick out 14mm less on the outside. Again spacers can sort. Have a look here: http://www.willtheyfit.com/index.php...et2=45#content and try substituting the spec of your existing wheels rather than the factory 20s to give a better idea of where you might be able to get them out to. check the tyre rolling radius too - I think you're OK but with quattro it's very important to be very close to the same rolling radius front to back.
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===SOLD===2002 Audi S8 D2 Final Edition (yes, really) in Avus Silver with purple extended leather===SOLD=== 2011 S5 Sportback in Phantom Black with black Super Sports leather, 9x20s, tech pack high, adaptive xenon plus, intelligent key, memory seats pack, sunroof, B&O, Audi Drive Select & quattro Sports Diff, DAB, parking system plus 2015 VW Golf GTI Performance Pack in Carbon Grey with black Vienna leather, tech pack (Discovery Pro nav & Dynaudio), DCC, factory towbar and retrofit RVC
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#4
28th November 2014, 08:30 PM
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Hmmmmm. The differences are not massive, it depends which direction the calipers are fouling.
If it's sideways in/out then as Adrian has said, spacers would resolve that, especially for the fronts which are narrower so tighter. (Remember ET is in mm, so we're talking small differences here.) I'd be worrying that it's the shape of the dish of the wheels that is the problem and that's potentially not fixable if it's curving in on the caliper without using excessive spacers. The 10J's shouldn't be anywhere near the calipers if they really are ET45.
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Last edited by HPsauce; 28th November 2014 at 09:22 PM.
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#5
28th November 2014, 09:58 PM
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I'm sure design of the wheel is the issue Bentley wheels I have now on - the lid curves around calipers, new set is dead flat. Will see with some reasonable size spacers and front is a bigger issue.Rears I would get away with 2mm spacer See the pic
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#7
29th November 2014, 06:00 PM
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They look nice Borys!
Make sure the front and rear rolling radius is within 1% or close or you will get the quattro system throwing up ESP errors as it thinks a wheel is slipping. make sure you've worked out the tyre sizes to do this. it sounds like with spacers you should be able to resolve the other issue just make sure that they are all hubcentric ones
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Confidence is the feeling you have before you know better . . . .  Audi A8 D2 3.7 Quattro Sport 1999 FL - Melange 2nd Place Winner - A8-Freunde Annual German Meet 2012 at Edersee 20" x 9" Bentley GTC Wheels with 385mm W12 Front Discs & Bentley Caliper Covers, Front Lowered on Coilovers, Xenons, Combined DRLs and LED Foglights to modified OEM front fog lamp position, Alcantara/Leather, Full Black Alcantara headlining + pillars and blind shelf, Bespoke Flat Bottomed Sports Steering Wheel, Dark Myrtle Wood, Autodim Mirrors, Bose, Blinds, Digital TV, Ski Hatch, Modified rear exhaust section for extra V8 Burble Audi S8 D2 Final Edition 2002, Avus Silver with Red Leather Interior Tiptronic with Sport mode button, Sony rear entertainment package, Bose sound system, Audi Navigation Plus, 20 inch Final Edition alloys, Full Cat Back Stainless Milltek exhaust, giving a great V8 burble Audi A8L D2 4.2 Petrol with LPG - Ebony Black Audi A8L D4 FL 4.0T Petrol twin turbo - Havana Black Audi A2 1.6 FSi Sport - Dolphin Grey with Votex body kit and Red Leather Interior and some other A8's A8L's and Mercs
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#8
29th November 2014, 06:23 PM
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Thanx mate,
As reference I used 19" set up with 255/40 tyres Tyres on those are exact match is radius front and back 686mm Should be good, Tuesday will play with spacers Cannot wait You still beat me for an inch :-)
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#9
29th November 2014, 06:35 PM
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Quote:
Cant wait to see it, hope youre enjoying the soundtrack still!! 
__________________
Confidence is the feeling you have before you know better . . . . Audi A8 D2 3.7 Quattro Sport 1999 FL - Melange 2nd Place Winner - A8-Freunde Annual German Meet 2012 at Edersee 20" x 9" Bentley GTC Wheels with 385mm W12 Front Discs & Bentley Caliper Covers, Front Lowered on Coilovers, Xenons, Combined DRLs and LED Foglights to modified OEM front fog lamp position, Alcantara/Leather, Full Black Alcantara headlining + pillars and blind shelf, Bespoke Flat Bottomed Sports Steering Wheel, Dark Myrtle Wood, Autodim Mirrors, Bose, Blinds, Digital TV, Ski Hatch, Modified rear exhaust section for extra V8 Burble Audi S8 D2 Final Edition 2002, Avus Silver with Red Leather Interior Tiptronic with Sport mode button, Sony rear entertainment package, Bose sound system, Audi Navigation Plus, 20 inch Final Edition alloys, Full Cat Back Stainless Milltek exhaust, giving a great V8 burble Audi A8L D2 4.2 Petrol with LPG - Ebony Black Audi A8L D4 FL 4.0T Petrol twin turbo - Havana Black Audi A2 1.6 FSi Sport - Dolphin Grey with Votex body kit and Red Leather Interior and some other A8's A8L's and Mercs
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