Re: Digital Speedometer

[bcurrey@escape.com]

The GM Service manual has a basic wiring diagram for the dimmer rheostat
and HUD display, but I've seen the inards, and to be honest, you'd be many
hours and $$$ ahead to get one from a junkyard.  Get the Hud and the
switch.  Switch is $112 new from my dealer.  HUD can't be got new, I don't
think.  Try www.copartfinder.com to find a Grand Prix or Olds Cutlass with
it.  Look for a bubble thing on the dash in front of the driver...

BobC

On Tue, 11 Apr 2000 cwagner@info2000.net wrote:

> On 10 Apr 00, at 13:35, Shawn R. Lin wrote:
> 
> 
> > Bob is right, it would be much easier to use an existing HUD, if all you
> > want is a speedometer.
> > They take 4000 pulses per mile.  The vacuum fluorescent displays in them
> > are the brighest you could get.
> > Some of them (88-94 Cutlass Supreme) are even flat on the bottom of the
> > housing and can be mounted to the dash in any older car.  The 89-93
> > Grand Prix HUD has a curved housing.  The 88-90 HUDs have integral
> > height adjusters so they would actually be easier to implement than the
> > 91-94 version.  Not to mention the older ones are built better with
> > glass lenses instead of plastic.
> > The particular HUD I've been messing with can read up to 299mph!  It
> > will read up to 199mph normally, and in the 200 range it reverts to 2
> > digits with all icons lit.
> > 
> > -- 
> > Shawn Lin
> 
> The problem with this is there is no place where I can get anything 
> like that around where I live.  Does anyone have any they can 
> spare or trade for?  Let me know off list.  If not, at least some kind 
> of circuit schematic would be great.  I don't know if I want to go 
> with vfd or LED displays.Preferably LED, less parts.
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