Comprehensive Wheel Fitment Guide
Comprehensive Wheel Fitment Guide:
With all this free time I thought I'd make this thread so people know what factors play into understanding wheel fitment and know the golden equation for fitment success.
*Disclaimer* If you are not planning on coilovers or springs and won't do a new alignment, then don't bother with these guidelines lol. These are also for nice fitment without too much stretch or risk of debeading, drives nice and isn't overly done/stanced. I also refuse to run anything less than a 235/245 front and a 275 rear.
Factors crucial to figuring out your individual setup:
- Wheel diameter
- Wheel width
- Wheel offset
- Tire sizes
- Suspension height
- Camber and toe settings (camber plates recc'd)
- Spring rates
- Shaved rear fenders (a must for good fitment)
- Big brake kit (gets way more complex)
Stock front camber goes to -1.5 or -1.8deg with the strut guide pins removed. Rears goes up to -2.3.
On average the key to success is a 1.5" stagger from front to rear with the SAME offset and APPROX SAME camber.
Ex. 8.5 ET25 and 10 ET25
Ex. 9.5 ET25 and 11 ET25
Achieve the below specs with or without spacers.
Common recommended setups are below:
With coilovers:
Suspension height: 1 finger gap = ~7/8" Spring rates: 6/8k usual spring rates of aftermarket coil overs, but I recommend 8/10k rates.
19x9.5 +25 on 245/35/19 and 11 +25 on 285/30/19
Front: -2.5deg, 0 toe. Rear: -2deg, 1/8 toe.
19x10 +25 on 255/35/19 and 11 +25 on 285/30/19
Front: -2.8deg, 0 toe. Rear: -2deg, 1/8 toe.
19x9.5 +25 on 255/35/19 and 10.5 +25 on 285/30/19
Front: -3.2deg, 0 toe. Rear: -2.3deg, 1/8 toe.
18x9.5 +22 on 265/35/18 and 10.5 +20 on 285/35/18
Front: -3.2deg, 0 toe. Rear: -2.3deg, 1/8 toe.
With springs (without coilovers):
Suspension height: varies on spring brand.
19x8.5 +25 with 235/35/19 and 10 +25 with 275/30/19
Front: -1.8deg, 0 toe. Rear: -1.8deg, 1/8 toe.
18x9 +30 on 240/40/18 and 10 +25 on 275/35/18
Front: -1.8deg, 0 toe. Rear: -2deg, 1/8 toe.
19x9.5 +25 on 235/35/19 and 11 +25 on 275/30/19
Front: -1.8deg, 0 toe. Rear: -1.6deg, 1/8 toe.
19x9.5 +35 on 245/35/19 and 10.5 +25 on 275/30/19
Front: -1.8deg, 0 toe. Rear: -2deg, 1/8 toe.
Will update this a bit further, if you have any questions let me know. Here are some examples of fitment on my car.
With all this free time I thought I'd make this thread so people know what factors play into understanding wheel fitment and know the golden equation for fitment success.
*Disclaimer* If you are not planning on coilovers or springs and won't do a new alignment, then don't bother with these guidelines lol. These are also for nice fitment without too much stretch or risk of debeading, drives nice and isn't overly done/stanced. I also refuse to run anything less than a 235/245 front and a 275 rear.
Factors crucial to figuring out your individual setup:
- Wheel diameter
- Wheel width
- Wheel offset
- Tire sizes
- Suspension height
- Camber and toe settings (camber plates recc'd)
- Spring rates
- Shaved rear fenders (a must for good fitment)
- Big brake kit (gets way more complex)
Stock front camber goes to -1.5 or -1.8deg with the strut guide pins removed. Rears goes up to -2.3.
On average the key to success is a 1.5" stagger from front to rear with the SAME offset and APPROX SAME camber.
Ex. 8.5 ET25 and 10 ET25
Ex. 9.5 ET25 and 11 ET25
Achieve the below specs with or without spacers.
Common recommended setups are below:
With coilovers:
Suspension height: 1 finger gap = ~7/8" Spring rates: 6/8k usual spring rates of aftermarket coil overs, but I recommend 8/10k rates.
19x9.5 +25 on 245/35/19 and 11 +25 on 285/30/19
Front: -2.5deg, 0 toe. Rear: -2deg, 1/8 toe.
19x10 +25 on 255/35/19 and 11 +25 on 285/30/19
Front: -2.8deg, 0 toe. Rear: -2deg, 1/8 toe.
19x9.5 +25 on 255/35/19 and 10.5 +25 on 285/30/19
Front: -3.2deg, 0 toe. Rear: -2.3deg, 1/8 toe.
18x9.5 +22 on 265/35/18 and 10.5 +20 on 285/35/18
Front: -3.2deg, 0 toe. Rear: -2.3deg, 1/8 toe.
With springs (without coilovers):
Suspension height: varies on spring brand.
19x8.5 +25 with 235/35/19 and 10 +25 with 275/30/19
Front: -1.8deg, 0 toe. Rear: -1.8deg, 1/8 toe.
18x9 +30 on 240/40/18 and 10 +25 on 275/35/18
Front: -1.8deg, 0 toe. Rear: -2deg, 1/8 toe.
19x9.5 +25 on 235/35/19 and 11 +25 on 275/30/19
Front: -1.8deg, 0 toe. Rear: -1.6deg, 1/8 toe.
19x9.5 +35 on 245/35/19 and 10.5 +25 on 275/30/19
Front: -1.8deg, 0 toe. Rear: -2deg, 1/8 toe.
Will update this a bit further, if you have any questions let me know. Here are some examples of fitment on my car.
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