From: John Tserkezis 
Reply-To: Fidonet AVtech Echo 

Brenton wrote:

> Actually, I've found the relevant regulation ...

> ---[ Quote_Mode = ON ]---
> 
> 41 Speedometers
> 
> Every motor vehicle (not being a trailer) manufactured on or after 1 July 1974
> and capable of being driven at a speed in excess of 40 kilometres per hour on
> a level road must be fitted with a speedometer that must:
> 
> (a) indicate the speed at which the vehicle is being driven in kilometres per
> hour, and
> 
> (b) indicate, when the vehicle is travelling at a speed in excess of 50
> kilometres per hour, a speed that is not more than 10- less than the actual
> speed, and
> 
> (c) be readily visible to the driver.
> 
> ---[ Quote_Mode = OFF ]---

  Thanks for that.  At last, fact that isn't based on "so and so told whoever 
that joe blow said...."



>>I've seen this to be the case, but I think it was only on
>>modified vehicles (either wheels, diff ratios or both).

> Nope.  As clearly stated in the regs, it is for very vehicle, built after 1974,
> which can travel at a speed in excess of 40kph.

  Not when boy-racer tries to install a 9 inch diff and change the ratios.

> BV>> I don't know where this +/- 10% came from, but it is an
urban legend ..[]..

> JS>  Interesting, I've read a few cases where this has been done,
but of course
> JS> the "I've seen it on the internet so it must be true"
case could apply here.

> Probably the same authorative reporting that helps people be aware that petrol
> pumps can explode when a mobile phone rings near them, or that women shouldn't
> masturbate with Lobsters.

  I knew about the phone thing, but the lobsters?  Please tell...

>> Over the weekend while driving to and from the snow ..[]..

> We've done that once or twice too.  Having the GPS linked to a notebook with
> maps of the entire state ( and most of the coutnry ) at 25k:1 res, and the
> entire country at 100k:1, helps though :)

  100K:1?  You're not talking about the Auslig/Natmap 250K raster series are 
you?  They translate closer to 160K on a 12" laptop display.

  And "25K for most of the country", doesn't include (in NSW) the
"LPI 7 CDs 
for nearly a thousand dollars" set does it?  They're nearly bloody useless. 
All are anywhere between ten and thirty years old.  I made the mistake of 
buying one before I realised I pissed more money down the drain.

  I was using oziexplorer on my iPaq, much less to carry around when you have 
to travel light.  Had the Natmap maps for all the state, along with detailed 
street level for canberra, and everything between the central coast and 
woolongong.  And many of the smaller towns all crammed into half a 512Mb CF card.

> The 200 isn't to bad. It is a little low at 80 and about 5 clicks low at 110.

>>I haven't had the opportunity to test a digital readout speedo yet.

> I've got a heads-up display which I have fitted to the 200.  It reads the pulses
> directly from the speed sensor, and is dead accurate, although unfortunately the
> response time is a little slow.  What I mean by that, is that I can out
> accelerate and brake it, but when cruising the indicated speed is very accurate.

  Yeah, they all use the standard frequency meter technique to measure speed. 
What they should do is measure period, and translate that to speed.  Would make 
for a much faster update time, independant of speed.

  Out of interest, is the HUD an option, or an aftermarket thing?  I've seen 
filters built into the windshield to improve visibility of the display, but no 
aftermarket units.  I didn't think the 200sx had this as an option (a mate had 
  a 200 and he didn't mention it- he would have gone for it had he known about it).

-- 
       -o)
       /\\    Message void if penguin violated
      _\_V    Don't mess with the penguin

Linux Registered User # 302622                         http://counter.li.org>
Fido: 3:712/610  BBS/FAX: +61-2-9716-8310  Internet: jt{at}techniciansyndrome.org

--- ifmail v.2.15