I am not quite sure which wheels to get
05-18-2005, 12:56 PM
#21
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From a site I found:
"If your speedometer has been calibrated for 245/40 R 18 (26 x 9.65 x 18) tires, replacing them with 255/35 R 19's (27 x 10.04 x 19's) would result in the speedometer reading low by 1.19%."
"If your speedometer has been calibrated for 275/35 R 18 (26 x 10.83 x 18) tires, replacing them with 285/30 R 19's (27 x 11.22 x 19's) would result in the speedometer reading low by 0.60%."
Doesn't seem like anything to really worry about. You'll be going about 1 mph faster than the speedo says. BMW is known to show a faster speed, ie. when the speedo says 80 you're really going like 75 so this closes that gap slightly.
I remember reading here on the forum that the M5 rims don't fit the regular E60? I don't see why they would not. It'll be a little tight in the front. Remember I put in 10mm spacers there and it got tight so increasing the tire width by those 10mm will cause the same issue. Perhaps we can even go fatter in the rear, perhaps 295?
Like I said I'm personally going to wait until my tires wear out. I think when you put the 19" M5 rims on you're going to have to lower the car also to make up for the increased height otherwise it might look awkward. That's going to be another expensive mod.
"If your speedometer has been calibrated for 245/40 R 18 (26 x 9.65 x 18) tires, replacing them with 255/35 R 19's (27 x 10.04 x 19's) would result in the speedometer reading low by 1.19%."
"If your speedometer has been calibrated for 275/35 R 18 (26 x 10.83 x 18) tires, replacing them with 285/30 R 19's (27 x 11.22 x 19's) would result in the speedometer reading low by 0.60%."
Doesn't seem like anything to really worry about. You'll be going about 1 mph faster than the speedo says. BMW is known to show a faster speed, ie. when the speedo says 80 you're really going like 75 so this closes that gap slightly.
I remember reading here on the forum that the M5 rims don't fit the regular E60? I don't see why they would not. It'll be a little tight in the front. Remember I put in 10mm spacers there and it got tight so increasing the tire width by those 10mm will cause the same issue. Perhaps we can even go fatter in the rear, perhaps 295?
Like I said I'm personally going to wait until my tires wear out. I think when you put the 19" M5 rims on you're going to have to lower the car also to make up for the increased height otherwise it might look awkward. That's going to be another expensive mod.
05-20-2005, 11:25 AM
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Originally Posted by Lomag' date='May 18 2005, 02:56 PM
From a site I found:
"If your speedometer has been calibrated for 245/40 R 18 (26 x 9.65 x 18) tires, replacing them with 255/35 R 19's (27 x 10.04 x 19's) would result in the speedometer reading low by 1.19%."
"If your speedometer has been calibrated for 275/35 R 18 (26 x 10.83 x 18) tires, replacing them with 285/30 R 19's (27 x 11.22 x 19's) would result in the speedometer reading low by 0.60%."
Doesn't seem like anything to really worry about. You'll be going about 1 mph faster than the speedo says. BMW is known to show a faster speed, ie. when the speedo says 80 you're really going like 75 so this closes that gap slightly.
"If your speedometer has been calibrated for 245/40 R 18 (26 x 9.65 x 18) tires, replacing them with 255/35 R 19's (27 x 10.04 x 19's) would result in the speedometer reading low by 1.19%."
"If your speedometer has been calibrated for 275/35 R 18 (26 x 10.83 x 18) tires, replacing them with 285/30 R 19's (27 x 11.22 x 19's) would result in the speedometer reading low by 0.60%."
Doesn't seem like anything to really worry about. You'll be going about 1 mph faster than the speedo says. BMW is known to show a faster speed, ie. when the speedo says 80 you're really going like 75 so this closes that gap slightly.
[snapback]130295[/snapback]
I think BMW speedos indicate a faster than actual reading by about 7 or 8%, so changing the tires diameters to the ones in your example (which happen to be the same ones that I calculated to be a closer match to the OEM's) would make a minimal change. But if I understand it correctly from your example the larger the diameter is the lower the speedo will read. That would mean while the sizes that I listed may be OK, the M5 sizes would make a much bigger change in the speedo reading.
what about the acceleration and gas milage.....anyone know how increasing the tire diameter will affect those?
Originally Posted by Lomag' date='May 18 2005, 02:56 PM
I remember reading here on the forum that the M5 rims don't fit the regular E60? I don't see why they would not. It'll be a little tight in the front. Remember I put in 10mm spacers there and it got tight so increasing the tire width by those 10mm will cause the same issue. Perhaps we can even go fatter in the rear, perhaps 295?
Originally Posted by Lomag' date='May 18 2005, 02:56 PM
Like I said I'm personally going to wait until my tires wear out. I think when you put the 19" M5 rims on you're going to? have to lower the car also to make up for the increased height otherwise it might look awkward. That's going to be another expensive mod.
05-20-2005, 11:47 AM
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Originally Posted by rodybmw' date='May 18 2005, 03:41 PM
Does anyone know the part numbers to the 166 wheels??
[snapback]130281[/snapback]
- Single wheel, rear :36 11 7 834 626
- Hub cap :36 13 6 768 640
05-20-2005, 12:29 PM
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Originally Posted by m630' date='May 20 2005, 01:47 PM
[quote name='rodybmw' date='May 18 2005, 03:41 PM']Does anyone know the part numbers to the 166 wheels??
[snapback]130281[/snapback]
- Single wheel, rear :36 11 7 834 626
- Hub cap :36 13 6 768 640
[snapback]131240[/snapback]
[/quote]Thanks for the part numbers!
05-21-2005, 07:14 AM
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Originally Posted by poleposition' date='May 21 2005, 03:12 PM
Hey rody, definitely go with the 295's.? You will not be sorry.? I have 295's in the rear as well.? Check em out.
[snapback]131501[/snapback]
http://www.wheelmachine2000.de/
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05-21-2005, 03:21 PM
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Originally Posted by poleposition' date='May 21 2005, 08:12 AM
Hey rody, definitely go with the 295's.? You will not be sorry.? I have 295's in the rear as well.? Check em out.
[snapback]131501[/snapback]
NICE!
.............What are the wheel sizes and offsets that you have?
05-21-2005, 04:56 PM
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Originally Posted by rodybmw' date='May 21 2005, 07:21 PM
[quote name='poleposition' date='May 21 2005, 08:12 AM']Hey rody, definitely go with the 295's.? You will not be sorry.? I have 295's in the rear as well.? Check em out.
[snapback]131501[/snapback]
NICE!
.............What are the wheel sizes and offsets that you have?[snapback]131638[/snapback]
[/quote]20x9 fronts on 255/30/20 & 20x10 rears on 295/25/20. Tires are none other than the Michelin Pilot Sport A/S. Fantastic tire. The offsets are 24.
05-21-2005, 09:18 PM
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Originally Posted by poleposition' date='May 21 2005, 04:12 PM
Hey rody, definitely go with the 295's.? You will not be sorry.? I have 295's in the rear as well.? Check em out.
[snapback]131501[/snapback]
do you need a trucklicense for those to drive ?
05-21-2005, 09:44 PM
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Originally Posted by mhoutman' date='May 21 2005, 09:18 PM
[quote name='poleposition' date='May 21 2005, 04:12 PM']Hey rody, definitely go with the 295's.? You will not be sorry.? I have 295's in the rear as well.? Check em out.
[snapback]131501[/snapback]
do you need a trucklicense for those to drive ?
[snapback]131722[/snapback]
[/quote]Nah not till you reach 315's