Question about track tire diameters
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I run a 993 on the track in red run group; car is built up as a club racer but I don't race it.
I currently use Hoosier R6 tires in 285/30/18 sizes on the rears, 245/35/18 fronts. The tire diameter is 24.9."
We might want to change to a diameter of 27.7" to move the speeds up in each gear (car has a very close ratio gear set).
I like Hoosier R6 tires, but am not sure if I can get this diameter in a size that will fit my car.
I realize that a larger tire will (all things being equal) mean slower acceleration in each gear, but the gears are low enough/close enough that I should be OK.
So - I guess I am looking for comments and reactions to this idea.
Thanks
I currently use Hoosier R6 tires in 285/30/18 sizes on the rears, 245/35/18 fronts. The tire diameter is 24.9."
We might want to change to a diameter of 27.7" to move the speeds up in each gear (car has a very close ratio gear set).
I like Hoosier R6 tires, but am not sure if I can get this diameter in a size that will fit my car.
I realize that a larger tire will (all things being equal) mean slower acceleration in each gear, but the gears are low enough/close enough that I should be OK.
So - I guess I am looking for comments and reactions to this idea.
Thanks
#2
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I run a 993 on the track in red run group; car is built up as a club racer but I don't race it.
I currently use Hoosier R6 tires in 285/30/18 sizes on the rears, 245/35/18 fronts. The tire diameter is 24.9."
We might want to change to a diameter of 27.7" to move the speeds up in each gear (car has a very close ratio gear set).
I like Hoosier R6 tires, but am not sure if I can get this diameter in a size that will fit my car.
I realize that a larger tire will (all things being equal) mean slower acceleration in each gear, but the gears are low enough/close enough that I should be OK.
So - I guess I am looking for comments and reactions to this idea.
Thanks
I currently use Hoosier R6 tires in 285/30/18 sizes on the rears, 245/35/18 fronts. The tire diameter is 24.9."
We might want to change to a diameter of 27.7" to move the speeds up in each gear (car has a very close ratio gear set).
I like Hoosier R6 tires, but am not sure if I can get this diameter in a size that will fit my car.
I realize that a larger tire will (all things being equal) mean slower acceleration in each gear, but the gears are low enough/close enough that I should be OK.
So - I guess I am looking for comments and reactions to this idea.
Thanks
You really need to address the root cause of your dilemma, ie change your transmission gearing or I suppose that if you like the current drops you could use a cwp set w/ taller gearing, I don't know if any are available.
Maybe you can swap transmissions w/ someone the wants one the way yours is setup
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Hi Bill
Thanks for this reply; you are always a good source.
I think you are right about fitting taller tires; we have decided to stay with the existing diameter and have changed gears 3 through 6.
Let me know if you would like the details.
GBox was great; Stan described the existing ratios as a hillclimb box!
Thanks for this reply; you are always a good source.
I think you are right about fitting taller tires; we have decided to stay with the existing diameter and have changed gears 3 through 6.
Let me know if you would like the details.
GBox was great; Stan described the existing ratios as a hillclimb box!
#4
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Hi Bill
Thanks for this reply; you are always a good source.
I think you are right about fitting taller tires; we have decided to stay with the existing diameter and have changed gears 3 through 6.
Let me know if you would like the details.
GBox was great; Stan described the existing ratios as a hillclimb box!
Thanks for this reply; you are always a good source.
I think you are right about fitting taller tires; we have decided to stay with the existing diameter and have changed gears 3 through 6.
Let me know if you would like the details.
GBox was great; Stan described the existing ratios as a hillclimb box!