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Tire Rack's Tires, Wheels, Brakes & Suspension
Discuss everything about wheels, tires, suspension and brakes for your BMW. Sponsored by The Tirerack. Moderated by Gary@Tirerack.com |
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#1
06-24-2003, 06:29 AM
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Question about Revs/mile
I have a 2003 330i ZHP with the following Michelin Pilot Sports:
Front - 225/40-18 Revs/mile=821 Rear - 255/35-18 Revs/mile=824 I have a set of AT Italia 17X8 wheels that I want to use for Auto X and Track events. I plan to put on 235/40-17 Kuhmo Ecsta V700's. The Revs/mile for the Kuhmo's is 855. What effect will this have on the car? Also, I have a three 225/45-17 V700's. Two are in really good condition. I want to use two of them on the front and order two 235-40's for the rear. When the fronts wear out I will replace them with 235's. Any thoughts?
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#2
06-24-2003, 06:31 AM
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Ned,
try entering this into this tire calculator . . . it might help you out . . . http://www.miata.net/garage/tirecalc.html
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#3
06-24-2003, 06:33 AM
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It means that you will have imperceptably lower gearing.
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2006 GMC Sierra 2500HD 4WD Duramax LBZ/Allison 6-speed 2002 BMW M3 Alpinweiß/Black 1999 323i KP/GTS2 Alpinweiß 1990 325is Brilliantrot/Tan 1989 325is S50B30US Alpinweiß/Black 1989 M3 Alpinweiß/Black S50B32 (321hp, ITBs) 
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#4
06-24-2003, 06:36 AM
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Quote:
Great site Thank you!!! It says my speedo will be 2.5% off when the speedo says 60 I will be doing 58.5 mph.
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#5
06-24-2003, 06:36 AM
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Right, these are not large difference in 'real' feel and handling. All work fine and are popular choices for R compund tires.
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Refer to 'Gary/Bimmerfest' as your previous contact when you order online. Credit Bimmerfest.com by ordering through the sig link. Gary@Tirerack.com 
Last edited by Gary@Tirerack; 06-24-2003 at 06:40 AM.
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#6
06-24-2003, 06:55 AM
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Quote:
There have been threads about this here and on other boards. Car and Driver had an article about speedos in general about a year ago. Car and Driver Speedometer Article Summary of Results (check out how the BMWs tested comapre to the other makes)
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OH NOES!!!!!1 MY CAR HAS T3H UND3R5T33R5555!!!!!!1oneone!!!!11 Team WTF?! What are you gonna do? 
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#7
06-26-2003, 09:02 PM
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the actual measurements for a particular tire can be found on the tirerack website by clicking on "specs" on the page describing a particular tire or by finding the specs on the manufacturers website. for example, compare the diameter of any two same size tires on these two charts:
Bridgestone RE750 http://www.tirerack.com/tires/Spec.j...=Potenza+RE750 Yokahama AVS ES100 http://www.tirerack.com/tires/Spec.j...odel=AVS+ES100
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 ___________________________________________ 2004 330i | zhp | 6-speed manual
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