I have a 07 GT 5spd, what kinda of RPM's will i be turning at 70 with 3.73's
The wheel diameter has nothing to do with RPM. It is the overall height of the tire that changes the RPM. The factory 17"s are 27.1" tall, while the factory 18"s are 27.2" tall. You may not even notice that difference with an analog tach.
If you have different size tires that stock, then it will be different. Taller tires will have a lower RPMs while shorter tires will have higher RPMs.
Another thing I don't understand is how some people say that 20"s fill up the fenders better than 17"s or 18"sIt fills up nearly the same space. Only it does it with more wheel and less tire. So taking the above factory tire heights and compare them to a 255/35/20...that is 27" tall...shorter than both factory tires. A 265/35/20 is 27.3" tall...only .1" taller than the factory 18"s. Neither of those 20" tires will greatly affect you RPMs vs the factory 17"s & 18"s. Thus wheel size matters not for RPM difference.
Anyone who took a math class is well aware of that, we are just being specific to try and clear up a question Mr. picture of my arm tattoo's in my avatar.
Anyone who took a math class is well aware of that, we are just being specific to try and clear up a question Mr. picture of my arm tattoo's in my avatar.
Hey Punisher, there is no place for that on this board.
LB
The question was not "about" what RPMs will I be turning. I gave him an exact answer which is totally dependent on tire diameter. The circumference is the distance the car will go in one rotation of the tire. If you know the distance the car goes in an hour (70 Miles), the to figure the exact RPMs you must know how many times the wheels turn in that hour. This is standard fractional analysis. Now since I said 17's at 45R that gives you the outside diameter, which you termed "tire height". Don't use just diameter, it's ambigous, because there is an inside and outside diameter. I think you made the mistake of assuming everyone was talking about the inside diameter which I for one, was not.The wheel diameter has nothing to do with RPM. It is the overall height of the tire that changes the RPM.
The question was not "about" what RPMs will I be turning. I gave him an exact answer which is totally dependent on tire diameter. The circumference is the distance the car will go in one rotation of the tire. If you know the distance the car goes in an hour (70 Miles), the to figure the exact RPMs you must know how many times the wheels turn in that hour. This is standard fractional analysis. Now since I said 17's at 45R that gives you the outside diameter, which you termed "tire height". Don't use just diameter, it's ambigous, because there is an inside and outside diameter. I think you made the mistake of assuming everyone was talking about the inside diameter which I for one, was not.
The question was not "about" what RPMs will I be turning. I gave him an exact answer which is totally dependent on tire diameter. The circumference is the distance the car will go in one rotation of the tire. If you know the distance the car goes in an hour (70 Miles), the to figure the exact RPMs you must know how many times the wheels turn in that hour. This is standard fractional analysis. Now since I said 17's at 45R that gives you the outside diameter, which you termed "tire height". Don't use just diameter, it's ambigous, because there is an inside and outside diameter. I think you made the mistake of assuming everyone was talking about the inside diameter which I for one, was not.
you guys sound like a bunch of women bickering
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