> Bradley, > > Time yourself cruising at a steady speed for 2 to three miles on the > interstate based on the mile markers.. Based on your average time calculate > your actual speed and compare to your indicated speed. > > you should take your average time in 1 mile (say 51 seconds), divide 60 by > that time in seconds (60/51sec = 1.175 rounded) and multiply the result by > 60 (1.175 x 60 = 70.5). That result, 70.5, is you speed in MPH. > > 60 divided by seconds in a mile multiplied by 60 = average speed in MPH in > that mile. > > At an idicated 60 MPH my Westy covers one mile in a little less that 58 > seconds, thus 60/58x60=62 MPH. At an indicated 70 MPH I am actually doing > 72.5 MPH and at indicated 75 MPH I am doing 77.6 MPH. These figures are for > my 27.5x8.5 14 tires inflated at 50 PSI. > > Chris, > > '85 Westy. > > ----- Original Message ----- > From: "Bradley Flubacher" <flub@ADELPHIA.NET> > To: <vanagon@GERRY.VANAGON.COM> > Sent: Monday, February 18, 2002 9:22 PM > Subject: right sized tires, wrong speed indication > > > > My '84 westy cruises nicely at 75-80 MPH, according to the speedometer. > > It's got to be wrong. I suspect by about 10-15 MPH. Any suggestions? My > > tires are the correct size.. > > > > > > Bradley Flubacher > > State College, PA > > '81 diesel rabbit > > '82 diesel westy > > '82 diesel van > > '84 GL wasserboxer > > > |
Please note - During the past 17 years of operation, several gigabytes of
Vanagon mail messages have been archived. Searching the entire collection
will take up to five minutes to complete. Please be patient!
Return to the archives @ gerry.vanagon.com
The vanagon mailing list archives are copyright (c) 1994-2011, and may not be reproduced without the express written permission of the list administrators. Posting messages to this mailing list grants a license to the mailing list administrators to reproduce the message in a compilation, either printed or electronic. All compilations will be not-for-profit, with any excess proceeds going to the Vanagon mailing list.
Any profits from list compilations go exclusively towards the management and operation of the Vanagon mailing list and vanagon mailing list web site.