Wheel circumference difference threshold for AWD
08-16-12, 08:10 PM
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Wheel circumference difference threshold for AWD
I know for AWD, I should try to get the wheel circumference between the front and back as close as possibile in a staggered set up. What is the threshold difference (percent) I should try to stay under to avoid any issues? Thanks.
08-17-12, 05:43 AM
#2
Not sure, but I'll add my setup for reference...
IS-F wheels
front: 19x8 with 225/40 19
rear: 19x9 with 255/35 19
tires: Continental DW
No issues. Rides/handles great!
.......FRONT........REAR.........
Diameter 662.6mm 661.1mm
Circumference 2081.6mm 2076.9mm
Poke 56.6mm 59.3mm
Speedo error 0% 0.23%
Reading at 30mph 30mph 30.07mph
Reading at 60mph 60mph 60.14mph
Ride height gain 0mm -0.75mm
Arch gap loss 0mm -0.75mm
www.willtheyfit.com
IS-F wheels
front: 19x8 with 225/40 19
rear: 19x9 with 255/35 19
tires: Continental DW
No issues. Rides/handles great!
.......FRONT........REAR.........
Diameter 662.6mm 661.1mm
Circumference 2081.6mm 2076.9mm
Poke 56.6mm 59.3mm
Speedo error 0% 0.23%
Reading at 30mph 30mph 30.07mph
Reading at 60mph 60mph 60.14mph
Ride height gain 0mm -0.75mm
Arch gap loss 0mm -0.75mm
www.willtheyfit.com
08-17-12, 09:35 AM
#4
I heard 1% but I could be wrong, I am currently working on my set up as well and figured out a nice set up under 1%. Use the link above for willtheyfit.com should be all you need!!
08-17-12, 11:16 AM
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it under 3%. for 19in wheel. the best fit is 235-35-19 front 275-30-19 this will be 1.40% Why i said the best is because lots of brand name make this sized tire even cheap brand sell for 90 a tire. 225/40/19 only a couple company make them,is ****ing too much money. and 245/35/19 and 285/30/19 will be great at .38% but too ****ing wide. i have a set of 19in H.R.E and it took me 3 months to understand this ****! its ok to be 3% because it not all time awd. its 70% rear and 30% front. look at the spare tire it come with, a lot smaller right?
Last edited by sexylexygs; 08-17-12 at 11:20 AM.
08-17-12, 11:28 AM
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and 225/40/19 is .89% 255/35/19 is .66% which is very close to stock % but the two sized itself is to fall apart at .89%- .66% is .23%. 235/35/19 is 1.48% 275/30/19 is 1.40% it .08% apart. we have to worry getting close to stock size and the 2 tire cant be to fall apart. this is crazy
08-17-12, 06:13 PM
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it under 3%. for 19in wheel. the best fit is 235-35-19 front 275-30-19 this will be 1.40% Why i said the best is because lots of brand name make this sized tire even cheap brand sell for 90 a tire. 225/40/19 only a couple company make them,is ****ing too much money. and 245/35/19 and 285/30/19 will be great at .38% but too ****ing wide. i have a set of 19in H.R.E and it took me 3 months to understand this ****! its ok to be 3% because it not all time awd. its 70% rear and 30% front. look at the spare tire it come with, a lot smaller right?
and 225/40/19 is .89% 255/35/19 is .66% which is very close to stock % but the two sized itself is to fall apart at .89%- .66% is .23%. 235/35/19 is 1.48% 275/30/19 is 1.40% it .08% apart. we have to worry getting close to stock size and the 2 tire cant be to fall apart. this is crazy
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