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From: fiddler%concertina@Sun.COM (Steve Hix)
Newsgroups: sci.physics,sci.electronics,rec.autos.tech
Subject: Re: Speedometers was: (Can 31 party balloons aggravate 1 police RADAR?
Message-ID: <72524@sun.uucp>
Date: 11 Oct 88 20:11:50 GMT
References: <880928.0208.11468@ontmoh.UUCP> <171@leibniz.UUCP> <3010@mtuxo.att.com>
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In article <3010@mtuxo.att.com>, gv@mtuxo.att.com (52341-G.VALENTINI) writes:
> 
> Typically the manufacturers set the speedometers
> to read HIGHER than what you are actually going. 
> So if you think you're going 70, you're really going 67mph or so.
> They probably do this for safety concerns.

I don't drive a car (unless I make arrangements with my wife, since
it's her car...), so this may not apply, but it is illegal in CA to
sell a motorcycle whose speedometer reads less than the actual speed
being ridden.  Manufacturers therefore set the meters to read up to
10% high, just to be safe.  (What you do in the way of adjusting them
after sale is not their concern.)  I assume that this is also the case
with cars.