Calculating vehicle speed via formula? - Lexus IS Forum
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post #1 of 5 (permalink) Old 03-22-2005, 08:06 PM Thread Starter
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Calculating vehicle speed via formula?

Anybody know any formulas to calculate vehicle speed, based on RPM, gear ratios, and wheel diameter?
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post #2 of 5 (permalink) Old 03-22-2005, 10:06 PM
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Here it is.

Not sure who did this but its very good.
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File Type: zip R154vsW55.zip (13.9 KB, 221 views)
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post #3 of 5 (permalink) Old 03-22-2005, 10:10 PM
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Ok, try this.

Apparently the server doesn't accept Excel files. Download it and change the extention from .doc to .xls.
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File Type: doc R154vsW55.doc (57.0 KB, 411 views)
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post #4 of 5 (permalink) Old 03-23-2005, 05:23 AM
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I'm the one who set that Excel sheet up for the R154 and the W55. I have it hosted on my server.

Here you go...
http://users.erols.com/mervine/IS300/R154vsW55.xls

2002 IS300 (sold) --> 573whp on 93 pump :::: 749whp on C16

2006 IS350 (current)
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post #5 of 5 (permalink) Old 03-23-2005, 07:45 AM Thread Starter
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excellent material, thanks..
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