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| Tire and Wheel Talk! Have a question about what tires to use? Or, just share your experience about your own. |
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05-07-2008, 11:35 AM
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#1 (permalink) |
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Senior Member
Join Date: Dec 2005
Location: Springfield, VA
Posts: 415
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Converting the XXX\XX\XX into actual inch numbers.
How do you do this?
Ex; 275/40/17 would convert to what in diameter and width, and how do you convert it?
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Go Slow or Go Fast. I really don't care. Just GO!  Year & Model: 2005 GT 5 Spd Dyno Numbers: Zero. Dynosaurs are extinct. Quarter Mile Time: It's 25% of the time it takes me to go a full mile. Mods: Installed: SLP LoudMouths Steeda Complete C.A.I. Kit SCT X-Cal2 Tune Motive 4.10 Gears Sequential Taillights Next: Hurst Short Throw Shift Kit |
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05-07-2008, 12:04 PM
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#3 (permalink) | |
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Senior Member
Join Date: Aug 2005
Location: Clayton, NC
Posts: 439
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Quote:
The 40 is the aspect ratio, as in the sidewall height of the tire is 40% of the width. Therefore, that tire would have a sidewall height of 110 millimeters or 11 centimeters. The 17 is the diameter in inches. 1 inch = 2.54 centimeters, 1 centimeter ~ .3937 inch (1/2.54) Scott
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96 GT Mods: VT Stage IIs, Stage 2.5 Ported PI heads from New Kid Cylinder Head in Kansas City, PI Intake, BBK Plenum, BBK 75mm Throttlebody, BBK Fenderwell Cold-Air, 3.55s, Steeda Tri-Ax, SCT PRP Tune, FRPP Shorties, BBK Off-Road H, Flowmaster Catback, Steeda Adj./Quad., 180* tstat, Fidanza Aluminum Flywheel, McLeod performance clutch |
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