Tire Size question.
10-07-2007, 10:28 AM
#2
I just picked up my G37 yesterday (Sport, red/graphite, 6 speed, Premium, Navigation). I switched out the tires from the OE Bridgestone's to Michelin Pilot Sport A/S all around. In front I mounted 245/40-19, and they fit the front wheels perfectly. The 245/40-19 tire actually is spec'd to ideally fit an 8.5" wheel, which is what the front is (on the rear I mounted 255/40-19).
The usual guidelines are to not deviate from the OE sidewall height by more than 3%-4%. The OE 225/45 front tire has a sidewall height of 101.25 mm. The 245/40 is 98 mm, more than close enough. But the 245/35 is only 85 mm, more than 15% less than stock.
The usual guidelines are to not deviate from the OE sidewall height by more than 3%-4%. The OE 225/45 front tire has a sidewall height of 101.25 mm. The 245/40 is 98 mm, more than close enough. But the 245/35 is only 85 mm, more than 15% less than stock.
10-07-2007, 04:20 PM
#3
I just picked up my G37 yesterday (Sport, red/graphite, 6 speed, Premium, Navigation). I switched out the tires from the OE Bridgestone's to Michelin Pilot Sport A/S all around. In front I mounted 245/40-19, and they fit the front wheels perfectly. The 245/40-19 tire actually is spec'd to ideally fit an 8.5" wheel, which is what the front is (on the rear I mounted 255/40-19).
The usual guidelines are to not deviate from the OE sidewall height by more than 3%-4%. The OE 225/45 front tire has a sidewall height of 101.25 mm. The 245/40 is 98 mm, more than close enough. But the 245/35 is only 85 mm, more than 15% less than stock.
The usual guidelines are to not deviate from the OE sidewall height by more than 3%-4%. The OE 225/45 front tire has a sidewall height of 101.25 mm. The 245/40 is 98 mm, more than close enough. But the 245/35 is only 85 mm, more than 15% less than stock.
10-08-2007, 08:30 AM
#4
If you want 35 profile tires, you could do that with a 20 in wheel. The difference in overall diameter between a 245/40 or 225/45 and a 245/35 is about 30 mm (15 mm sidewall x 2). 1 in = 25.4 mm, so a 20 in tire with 245/35-20 will have approximately the same diameter as either a 225/45-19 or 245/40-19.
Trending Topics
10-10-2007, 10:26 AM
#11
Lou
Lou
10-10-2007, 11:00 AM
#12
Well, this is half right. The car will sit a half inch lower because of the 1" decrease in the diameter of the tire wheel combo. However, unless the car is lowered the tire fender gap will get bigger. If the car is lowered, the lowering coupled with the decrease in wheel OD will turn the coupe into a lowrider or rice. You'll also lose ground clearance.
Hey, it's your car, if you want to rice it up, be my guest.
Lou
Lou
Hey, it's your car, if you want to rice it up, be my guest.
Lou
Lou
10-10-2007, 12:26 PM
#13
what kind of english is that? If your leaving the car stock height but just putting thinner tires the gap will be bigger in the fender wells. The car is not getting any lower in the suspension itself. Only a little lower from ground clearnence due to thinner tires. The suspension is still at the oem standard height.
10-10-2007, 03:25 PM
#14
what kind of english is that? If your leaving the car stock height but just putting thinner tires the gap will be bigger in the fender wells. The car is not getting any lower in the suspension itself. Only a little lower from ground clearnence due to thinner tires. The suspension is still at the oem standard height.
10-10-2007, 03:45 PM
#15
if your lowering your car and depending on how much you plan on dropping it you would have to reduce your side wall size. i ran into this problem when lowering my M3 I used wider tires with the correct sidewall size for the oem specs. But when i lowered the car the tires rubbed the fender wells because the side walls where too high for the amount i dropped the car....