Aftermarket Wheels and suspensions for Xi
09-13-2012, 04:38 PM
#681
Senior Members
you must have meant 225
225/40x19 = ~26" OD
255/35x19 = ~26" OD
these are essentially exactly oem so they're fine, but like suggested above, slightly taller tire might be a better choice next time for a 19". something closer to the m5 factory size. however, if you really want that dropped look, then the larger tire and offsets chosen may get tight inside the fender.
09-13-2012, 04:45 PM
#683
Senior Members
Speedo stays in sync perfect according to tire calculators from various websites.
I was thinking about getting taller sidewalls but than it would actually throw off the speedo.
The other reason i got skinner tires was because i thought wheels were gonna be more flush.
I did not want to rub tires on fenders but wheels are not as flush as I was hoping
I was thinking about getting taller sidewalls but than it would actually throw off the speedo.
The other reason i got skinner tires was because i thought wheels were gonna be more flush.
I did not want to rub tires on fenders but wheels are not as flush as I was hoping
good reasons about width. better to be conservative in that area.
fyi, i have heard our speedo is under the actual speed by enough that my oversized tires now reflect an accurate/true speed. also, i get more miles per gallon this way too
3.6% is the calc diff and I do see 3% easily on distance per tank. distance of course on the odometer, is thus also under reported by 3.6% so one must use other methods to compute the distance for accuracy, but % apply across the board to fuel mpg, OD, etc.where did you get the wheels and if you don't mind... $$$ ?
09-13-2012, 06:55 PM
#684
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BMW did that on purpose. You can code it out using NCS Expert if desired.
09-13-2012, 11:50 PM
#685
Senior Members
of course it was on purpose. it's not like they built 1000's of cars and later said "oops"
my audi is the same way, but similarly i have one size up on it too. good to know about the coding but mine is accurate now which i prefer.
my audi is the same way, but similarly i have one size up on it too. good to know about the coding but mine is accurate now which i prefer.
09-17-2012, 01:09 AM
#686
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Join Date: Mar 2010
Location: Seattle, WA
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My Ride: 12 VW Passat TDI
11 Subaru STi Sedan (GONE)
09 E60 XI
06 E46 M3 (GONE)
05 Subaru LGT (GONE)
00 Ford Lightning (GONE)
good reasons about width. better to be conservative in that area.
fyi, i have heard our speedo is under the actual speed by enough that my oversized tires now reflect an accurate/true speed. also, i get more miles per gallon this way too 3.6% is the calc diff and I do see 3% easily on distance per tank. distance of course on the odometer, is thus also under reported by 3.6% so one must use other methods to compute the distance for accuracy, but % apply across the board to fuel mpg, OD, etc.
where did you get the wheels and if you don't mind... $$$ ?
fyi, i have heard our speedo is under the actual speed by enough that my oversized tires now reflect an accurate/true speed. also, i get more miles per gallon this way too
3.6% is the calc diff and I do see 3% easily on distance per tank. distance of course on the odometer, is thus also under reported by 3.6% so one must use other methods to compute the distance for accuracy, but % apply across the board to fuel mpg, OD, etc.where did you get the wheels and if you don't mind... $$$ ?
Here you go
http://www.ebay.com/itm/19-Rim-Wheel...vip=true&rt=nc
I'm also in Seattle area.
10-10-2012, 09:19 PM
#689
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Join Date: Mar 2011
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My Ride: 535xi
Model Year: 2008
Engine: N54
Looking at a set of BBS LM's...
Front: 19" X 8.5" ET35
Rear: 19" X 9.5" ET35
Current tires mounted though are 235/35/19 front, and 265/35/19 rear... overall tire diameter will be slightly smaller than stock. What do you guys think? I plan on lowering on KW3's... stretched tire might give me more clearance to slam it?
Looking for opinions...
Front: 19" X 8.5" ET35
Rear: 19" X 9.5" ET35
Current tires mounted though are 235/35/19 front, and 265/35/19 rear... overall tire diameter will be slightly smaller than stock. What do you guys think? I plan on lowering on KW3's... stretched tire might give me more clearance to slam it?
Looking for opinions...
10-10-2012, 10:04 PM
#690
Senior Members