Dragster
Well-Known Member
- Thread starter
- #1
Hey everyone! I have never put aftermarket wheels/tires on a car before, and I had a couple questions for those that have done so. I currently have a GT PP with the stock wheels and tires, and I was looking at Michelin Pilot 4S tires to go with MRR M350 staggered wheels (10 and 11). The sizes I'm looking at are 275/30/19 and 305/30/19.
1) When changing sizes, how much do I want to pay attention to the relationship between front and rear diameters? For example, the stock GT PP has a rear diameter .6" bigger than the fronts. The combo I'm looking at now would be about the same at .7", but the overall diameter of the tires is about 1.5" smaller (wider, lower profile tires on wider rims). My car is lowered on Eibach Sportlines, so I'm thinking that the smaller diameter might help with clearance--is that correct, or am I just making that up?
Also, how much difference does changing this relationship affect the handling of the car? I had initially wanted a 285 front tire, but the 4S only comes in a 35, so the overall diameter is 1.3" greater than the 275/30, and it would result in the front diameter being larger than the rear by .6". Am I putting way too much thought into this?
2) My car is tuned by Lund--does anyone know if they can calibrate the speedo for the different sized wheels and tires through a tune? I know I can contact them to find out, but I figured someone on here probably knows since I'm already asking.
Thanks in advance for the help, I appreciate it!
1) When changing sizes, how much do I want to pay attention to the relationship between front and rear diameters? For example, the stock GT PP has a rear diameter .6" bigger than the fronts. The combo I'm looking at now would be about the same at .7", but the overall diameter of the tires is about 1.5" smaller (wider, lower profile tires on wider rims). My car is lowered on Eibach Sportlines, so I'm thinking that the smaller diameter might help with clearance--is that correct, or am I just making that up?
Also, how much difference does changing this relationship affect the handling of the car? I had initially wanted a 285 front tire, but the 4S only comes in a 35, so the overall diameter is 1.3" greater than the 275/30, and it would result in the front diameter being larger than the rear by .6". Am I putting way too much thought into this?
2) My car is tuned by Lund--does anyone know if they can calibrate the speedo for the different sized wheels and tires through a tune? I know I can contact them to find out, but I figured someone on here probably knows since I'm already asking.
Thanks in advance for the help, I appreciate it!
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