| To: | robert.w.johnson@adelphia.net, healeys@autox.team.net |
|---|---|
| Subject: | Re: Tach to speed conversion |
| From: | N5572B@aol.com |
| Date: | Tue, 25 Oct 2005 23:06:57 EDT |
Bob, The formula is: mph=(rpm) (tire diameter) / (gear ratio) (336) You can go through and figure the speeds at each rpm for each gear...there is a chart, but I don't know where. OR, buy a cheap GPS, they can be found for `$100...works for verifying your speedometer also. Dave Duffey 59 BT 7 project |
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