Daza

A brumby with an ER27 and the radiator behind the cab... A Liberty with an EG33 and the radiator between the grill and the bullbar... Rising Sun Car Service 566 Main North Road Gepps Cross SA 5094 Phone +618 8349 6960 or Fax +618 8349 8159 http://www.risingsuncarservice.com.au/ Disclaimer - Not affiliated, just very impressed! Daza. :-)

in KingBobDole's example above the tyre circumfrence changed from 3 feet / revolution to 5 ft/rev, so, the speedo thinks 1 mile equals 333 revolutions, but, 333 revolutions actually equals (333 x 5) 1.666 miles, so, the speedo thinks 1 Mph equals 333 Rev / hour, but, at 333 Rev / hour you're really doing 1.666 Mph, so, at 100 Mph on the speedo you would be going 166.6 Mph!!! because, there is some error intoduced for EACH revolution, so, the more Rev / Hour you're doing the bigger the error!!! 166.6Mph in tha Brumby = some scary S__t!!