[Roadsters] GPS speedo calibration

[Dave Cooke]

So, how accurate is a GPS at displaying actual speed? I calibrated my
roadster speedo to my GPS & it showed I was consistently at least 5 mph
below at low speeds & 8-10mph below at highway speeds.


-DCooke
 Lake in the Hills, IL



-----Original Message-----
> From: Gary and Cindy Ault <aultgc at att.net>
> To: Hoon Kim <hoon at pixar.com>; Roadster mailist <
> datsun-roadsters at autox.team.net>
> Sent: Wed, 13 May 2009 7:44 pm
> Subject: Re: [Roadsters] New Transmission in, now a few questions
>
>
>
> If you have a GPS unit, or can borrow one, which gives speed readings, you
> can "calibrate" yourself at various engine speeds in various gears. Should
> be close enough if you're not Speed Racer.?
>
>
> Gary?
> (219) 322-1923?
> '66 1600/U20 SPL311-05917?
> '67 2000 Solex SRL311-00428?