incrementalg

I think your mind is made up...lol. I say go for it if you want.

incrementalg

I was curious about what the maximum difference in diameter could be for the torsen setup and can't find a definitive answer.

However, I found a couple of forums where different folks say Haldex specifies no greater than 4% difference from front to rear.

I wonder if Audi has even set a maximum % difference for the torsen system?

I'm not sure if the 2/32 max is in the manual. I can't find it anywhere in my A4 manual and no longer have the allroad. I think the 2/32 rule is generally a standard on awd. Any tire shop I've spoken to has used 2/32 as a safe bet for diameter difference.

One drawback is that you'll lose the ability to rotate the tires from front to back if you go staggered. You might also have an increase in understeer...which may or may not be bad depending on how you drive.

Ali A8

I ran staggered BBS's on my A8 way back in the day and did as you say kept the overall height the same and never had any issues. As far as more understeer, I know it should have felt like there was more but didnt really feel it as even the new smaller front tires were still wider than the stockers.

finiki

http://www.tirerack.com/tires/tirete...&affiliate=TZ6

FateXer0

I run a staggered setup on my B5 S4 for years with no issues at all. The center diff will make up the difference and Audi says no more than 3% difference so you should be within specs.

On my S4 I run 235/40/18 in the front and 255/35/18 in the rear.

Don't listen to the haters that ask "why". A wagon with wide tires in the back looks bad *** IMO

vtraudt

Not at all! Just trying to coerce technical arguments and real world experience.

For example this one:
Front: 255/35-20 (686.50 mm)
Rear: 275/30-20 (673.00 mm)
Ratio: 2%
Diff: 13.5 mm or 17/32 in !!!
Should shred his center diff over time?

http://www.allroadfaq.com/images/whe..._staggered.jpg

vtraudt

235/40/18 645.20 mm
255/35/18 635.70 mm
Diff: 9.5 mm 12/32 in
Ratio: 1.5%

Exactly: Bad *** Wagon ("Power Kombi" "Sports Waggon"): check out those RS6 Avant, AMG Benz wagons (we once had the AMG R63 here in the states; didn't sell and was canceled), 5 series wagons (Alpine) ;lowered, wider, tuned when they blow past you at 160 mph on the Autobahn.

VERY popular in Germany (daddy can't have 3 cars (Porsche, Buick, F150), so he gets his Power Kombi (Kombi is the old German term for station wagon, but also the short form for Kombination, nicely saying it all: combine the functionality of all 3 and add power = Power Kombi!

vtraudt

Tirerack:
Audi As published in their vehicle owner's manual, "rolling radius of all 4 tires must remain the same" or within 4/32-inch of each other in remaining tread depth.

vtraudt

BTW: the staggered pair example above is from a Porsche setup. I have to check what the four wheel Porsche 911T are running (surely staggered from factory, and they know what they are doing regarding center diff wear/strain, even so theirs is not a Torsen IIRC).

vtraudt

The 4/32 represent a deviation of about 0.5%