Tire recommendations
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4 doors & 6 on the floor
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Scott and Wukindada how can the T1Rs be better than the Rt615 when the treadwear is 280 versus 200 for the Rt? I thought:
lower treadwear = softer rubber =stickier rubber
lower treadwear = softer rubber =stickier rubber
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Just out of curiousity, if you are concerned about all out performance, why don't you consider going wider than 225's? How wide are your wheels? I would think that you would be able to fit 235's at the very least. 245's would be even better. I think there are quite a few people running 245's without rubbing and without rolling their fenders.
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4 doors & 6 on the floor
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Originally Posted by rv7
Just out of curiousity, if you are concerned about all out performance, why don't you consider going wider than 225's? How wide are your wheels? I would think that you would be able to fit 235's at the very least. 245's would be even better. I think there are quite a few people running 245's without rubbing and without rolling their fenders.
I'm interested in all out performance while staying as close to stock as possible. That's why I wasn't considering other sizes. The new wheels are 18 x 8.There are the following differences from stock tires size according to this tire size calculator (http://www.1010tires.com/TireSizeCalculator.asp):
225/40/18
Diameter Difference: 0.44%
Speedometer Difference: 0.434% too slow
Actual speedometer reading instead of 60mph: 59.7
235/40/18
Diameter Difference: 1.7%
Speedometer Difference: 1.722% too slow
Actual speedometer reading instead of 60mph: 58.9
245/40/18
Diameter Difference: 2.88%
Speedometer Difference: 2.954% too slow
Actual speedometer reading instead of 60mph: 58.2
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I just got my work 18X8.5 wheels + Bfg gforce t/a kd 235/40/18 and to be honest it's quieter and I think even smoother than the stock wheels /tires.
Looking at the RT-615's I am pretty sure they won't be exactly quiet.
Looking at the RT-615's I am pretty sure they won't be exactly quiet.
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Originally Posted by StiGuy
Ok let me rephrase. I'm interested in all out performance while staying as close to stock as possible. That's why I wasn't considering other sizes. The new wheels are 18 x 8.
There are the following differences from stock tires size according to this tire size calculator (http://www.1010tires.com/TireSizeCalculator.asp):
225/40/18
Diameter Difference: 0.44%
Speedometer Difference: 0.434% too slow
Actual speedometer reading instead of 60mph: 59.7
235/40/18
Diameter Difference: 1.7%
Speedometer Difference: 1.722% too slow
Actual speedometer reading instead of 60mph: 58.9
245/40/18
Diameter Difference: 2.88%
Speedometer Difference: 2.954% too slow
Actual speedometer reading instead of 60mph: 58.2
I'm interested in all out performance while staying as close to stock as possible. That's why I wasn't considering other sizes. The new wheels are 18 x 8.There are the following differences from stock tires size according to this tire size calculator (http://www.1010tires.com/TireSizeCalculator.asp):
225/40/18
Diameter Difference: 0.44%
Speedometer Difference: 0.434% too slow
Actual speedometer reading instead of 60mph: 59.7
235/40/18
Diameter Difference: 1.7%
Speedometer Difference: 1.722% too slow
Actual speedometer reading instead of 60mph: 58.9
245/40/18
Diameter Difference: 2.88%
Speedometer Difference: 2.954% too slow
Actual speedometer reading instead of 60mph: 58.2
Hmmm, well if you concerned about your speedo being off, tires are the least of your worries. The STi speedo is known to read higher than the vehicle is actually traveling. My friend Rob brought a TomTom GPS on our recent roadtrip and we determined that with my cruise control set at 79mph, we were actually going 74. That is a much larger difference than the tires would make. Again, if you want maximum gription (yes, I know that's not a word), you should go wider. Just something to consider.
