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Wow Roger... that is seriously high tech!!
Wonder if there is any way to make that stepper motor tach take readings ev=
ery 0.5 seconds to make its action look like those ever so cool "chronometr=
ic" tachs used in '50s race cars.
Michael S=20
BN1 #174.
On Mon, Jul 11, 2016 at 10:55 AM -0400, "Roger Grace" <roggrace@telus.net> =
wrote:
Recently went to Wales to collect my stepper motor converted tacho. and now=
=20
installed.
So far very good; nice bright red ignition led indicator and led back=20
lights.
They also changed the face text from =E2=80=9Cpositive earth=E2=80=9D to ne=
gative =E2=80=93 nice=20
touch.
Proper digital stepper motor (BTW Nisonger and others ? don't do this) so=
=20
no more calibration or analog issues, or current pulses.=C2=A0 No mechanica=
l=20
hairspring type movement.
Input is from from the CB on the coil and a new wire has to be installed; a=
=20
little sensitive to routing. I use a Pertronix.
No doubt they could also convert a mechanical tacho. to digital as=20
well.
=C2=A0
Now digital speedos.
=C2=A0
There are 2 options.
=C2=A0
The first, that I have ordered, is to cut the speedo. cable at a convenient=
=20
spot and install a pulse transducer. My thinking is that this is preferable=
and=20
easier than installing a magnetic type on the drive shaft.
They are building me a RVI instrument that will be near identical to the=20
original Smiths with dished face, but with a LED display in place of the od=
o and=20
trip.
This will have a modern digital stepper motor drive and hopefully be stable=
=20
and accurate. High beam indicator as before. Easy, accurate calibration.
I have ordered this as MPH and so my plan, for driving in Canada will be to=
=20
calibrate for 140 MPH as actually 140 kPH. This is easy to do and when in U=
S=20
will revert back to MPH. Only problem is that the total odo will be affecte=
d;=20
may just use the trip to keep track or just stick with MPH.
Will report back after receipt.
=C2=A0
Second option is to use an electronic digital cable drive to drive the=20
original magnetic speedo with original odo. and trip, if preserving the ori=
ginal=20
look is important. This also uses the same pulse transducer as per the LCD =
one.=20
The pulses now drive a mini digital brushless dc motor in a separate box wi=
th=20
electronic speed control. This box has a speedo cable output (usually short=
) so=20
electronic scaling is easy but it is still a mechanical magnetic cup type d=
rive.=20
Hopefully, with no long cable and sable pulses the typical speedo blips etc=
will=20
be eliminated. There is also some electronic filtering. This is the more=20
expensive option and they insist they will only sell this option if you hav=
e the=20
original speedo refurbished by them as well. This in the final stages of=20
development and they have a large contract to fulfill in next 2 months, so=
=20
realistically by Nov. time.
=C2=A0
As I will still have my original speedo. so if not happy with the LCD above=
=20
could resort to this solution.
=C2=A0
rg
=C2=A0
From: Roger Grace=20
Sent: Friday, May 6, 2016 8:33 AM
To: Healey List=20
Subject: BJ8 Tacho Upgrade
=C2=A0
Seriously thinking of getting my moving coil tacho. upgraded to a modern=20
stepper motor type movement, retaining the original face and case.
Speedy Cables in Wales offer this.
So, wondering (UK listers ?) if anyone has had this done and any comments=
=20
about this type of conversion.
Are there perhaps any US companies that do this as well ?
Tkx
rg=20
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<html><head></head><body><p dir=3D"auto">Wow Roger... that is seriously hig=
h tech!!<br>
Wonder if there is any way to make that stepper motor tach take readings ev=
ery 0.5 seconds to make its action look like those ever so cool "chronometr=
ic" tachs used in '50s race cars.<br>
Michael S <br>
BN1 #174.<br></p>
<br><br><br>
<div class=3D"gmail_quote">On Mon, Jul 11, 2016 at 10:55 AM -0400, "Roger G=
race" <span dir=3D"ltr"><<a href=3D"mailto:roggrace@telus.net"; target=3D=
"_blank">roggrace@telus.net</a>></span> wrote:<br>
<br>
<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p=
x #ccc solid;padding-left:1ex">
<div dir=3D"3D"ltr"">
<div dir=3D"ltr">
<div style=3D"FONT-SIZE: 12pt; FONT-FAMILY: 'Comic Sans MS'; COLOR: #000000=
">
<div style=3D"FONT-SIZE: small; TEXT-DECORATION: none; FONT-FAMILY: "C=
alibri"; FONT-WEIGHT: normal; COLOR: #000000; FONT-STYLE: normal; DISP=
LAY: inline">
<div dir=3D"ltr">
<div style=3D"FONT-SIZE: 12pt; FONT-FAMILY: 'Comic Sans MS'; COLOR: #000000=
">
<div style=3D"FONT-SIZE: small; TEXT-DECORATION: none; FONT-FAMILY: "C=
alibri"; FONT-WEIGHT: normal; COLOR: #000000; FONT-STYLE: normal; DISP=
LAY: inline">
<div dir=3D"ltr">
<div style=3D"FONT-SIZE: 12pt; FONT-FAMILY: 'Comic Sans MS'; COLOR: #000000=
">
<div style=3D"FONT-SIZE: small; TEXT-DECORATION: none; FONT-FAMILY: "C=
alibri"; FONT-WEIGHT: normal; COLOR: #000000; FONT-STYLE: normal; DISP=
LAY: inline">
<div dir=3D"ltr">
<div style=3D"FONT-SIZE: 12pt; FONT-FAMILY: 'Comic Sans MS'; COLOR: #000000=
">
<div style=3D"FONT-SIZE: small; TEXT-DECORATION: none; FONT-FAMILY: "C=
alibri"; FONT-WEIGHT: normal; COLOR: #000000; FONT-STYLE: normal; DISP=
LAY: inline">
<div dir=3D"ltr">
<div style=3D"FONT-SIZE: 12pt; FONT-FAMILY: 'Comic Sans MS'; COLOR: #000000=
">
<div style=3D"FONT-SIZE: small; TEXT-DECORATION: none; FONT-FAMILY: "C=
alibri"; FONT-WEIGHT: normal; COLOR: #000000; FONT-STYLE: normal; DISP=
LAY: inline">
<div dir=3D"ltr">
<div style=3D"FONT-SIZE: 12pt; FONT-FAMILY: 'Comic Sans MS'; COLOR: #000000=
">
<div style=3D"FONT-SIZE: small; TEXT-DECORATION: none; FONT-FAMILY: "C=
alibri"; FONT-WEIGHT: normal; COLOR: #000000; FONT-STYLE: normal; DISP=
LAY: inline">
<div dir=3D"ltr">
<div style=3D"FONT-SIZE: 12pt; FONT-FAMILY: 'Comic Sans MS'; COLOR: #000000=
">
<div style=3D"FONT-SIZE: small; TEXT-DECORATION: none; FONT-FAMILY: "C=
alibri"; FONT-WEIGHT: normal; COLOR: #000000; FONT-STYLE: normal; DISP=
LAY: inline">
<div dir=3D"ltr">
<div style=3D"FONT-SIZE: 12pt; FONT-FAMILY: 'Comic Sans MS'; COLOR: #000000=
">
<div style=3D"FONT-SIZE: small; TEXT-DECORATION: none; FONT-FAMILY: "C=
alibri"; FONT-WEIGHT: normal; COLOR: #000000; FONT-STYLE: normal; DISP=
LAY: inline">
<div dir=3D"ltr">
<div style=3D"FONT-SIZE: 12pt; FONT-FAMILY: 'Comic Sans MS'; COLOR: #000000=
">
<div style=3D"FONT-SIZE: small; TEXT-DECORATION: none; FONT-FAMILY: "C=
alibri"; FONT-WEIGHT: normal; COLOR: #000000; FONT-STYLE: normal; DISP=
LAY: inline">
<div dir=3D"ltr">
<div style=3D"FONT-SIZE: 12pt; FONT-FAMILY: 'Comic Sans MS'; COLOR: #000000=
">
<div>Recently went to Wales to collect my stepper motor converted tacho. an=
d now=20
installed.</div>
<div>So far very good; nice bright red ignition led indicator and led back=
=20
lights.</div>
<div>They also changed the face text from =E2=80=9Cpositive earth=E2=80=9D =
to negative =E2=80=93 nice=20
touch.</div>
<div>Proper digital stepper motor (BTW Nisonger and others ? don't do this)=
so=20
no more calibration or analog issues, or current pulses. No mechanica=
l=20
hairspring type movement.</div>
<div>Input is from from the CB on the coil and a new wire has to be install=
ed; a=20
little sensitive to routing. I use a Pertronix.</div>
<div>No doubt they could also convert a mechanical tacho. to digital as=20
well.</div>
<div> </div>
<div>Now digital speedos.</div>
<div> </div>
<div>There are 2 options.</div>
<div> </div>
<div>The first, that I have ordered, is to cut the speedo. cable at a conve=
nient=20
spot and install a pulse transducer. My thinking is that this is preferable=
and=20
easier than installing a magnetic type on the drive shaft.</div>
<div>They are building me a RVI instrument that will be near identical to t=
he=20
original Smiths with dished face, but with a LED display in place of the od=
o and=20
trip.</div>
<div>This will have a modern digital stepper motor drive and hopefully be s=
table=20
and accurate. High beam indicator as before. Easy, accurate calibration.</d=
iv>
<div>I have ordered this as MPH and so my plan, for driving in Canada will =
be to=20
calibrate for 140 MPH as actually 140 kPH. This is easy to do and when in U=
S=20
will revert back to MPH. Only problem is that the total odo will be affecte=
d;=20
may just use the trip to keep track or just stick with MPH.</div>
<div>Will report back after receipt.</div>
<div> </div>
<div>Second option is to use an electronic digital cable drive to drive the=
=20
original magnetic speedo with original odo. and trip, if preserving the ori=
ginal=20
look is important. This also uses the same pulse transducer as per the LCD =
one.=20
The pulses now drive a mini digital brushless dc motor in a separate box wi=
th=20
electronic speed control. This box has a speedo cable output (usually short=
) so=20
electronic scaling is easy but it is still a mechanical magnetic cup type d=
rive.=20
Hopefully, with no long cable and sable pulses the typical speedo blips etc=
will=20
be eliminated. There is also some electronic filtering. This is the more=20
expensive option and they insist they will only sell this option if you hav=
e the=20
original speedo refurbished by them as well. This in the final stages of=20
development and they have a large contract to fulfill in next 2 months, so=
=20
realistically by Nov. time.</div>
<div> </div>
<div>As I will still have my original speedo. so if not happy with the LCD =
above=20
could resort to this solution.</div>
<div> </div>
<div>rg</div>
<div> </div>
<div><b>From:</b> <a title=3D"roggrace@telus.net" href=3D"mailto:roggrace@t=
elus.net">Roger Grace</a> </div>
<div>
<div style=3D"FONT: 10pt tahoma">
<div style=3D"BACKGROUND: #f5f5f5">
<div><b>Sent:</b> Friday, May 6, 2016 8:33 AM</div>
<div><b>To:</b> <a title=3D"healeys@autox.team.net" href=3D"mailto:healeys@=
autox.team.net">Healey List</a> </div>
<div><b>Subject:</b> BJ8 Tacho Upgrade</div></div></div>
<div><font face=3D"Comic Sans MS"></font> </div></div>
<div style=3D"FONT-SIZE: small; TEXT-DECORATION: none; FONT-FAMILY: "C=
alibri"; FONT-WEIGHT: normal; COLOR: #000000; FONT-STYLE: normal; DISP=
LAY: inline">
<div dir=3D"ltr">
<div style=3D"FONT-SIZE: 12pt; FONT-FAMILY: 'Comic Sans MS'; COLOR: #000000=
">
<div>Seriously thinking of getting my moving coil tacho. upgraded to a mode=
rn=20
stepper motor type movement, retaining the original face and case.</div>
<div>Speedy Cables in Wales offer this.</div>
<div>So, wondering (UK listers ?) if anyone has had this done and any comme=
nts=20
about this type of conversion.</div>
<div>Are there perhaps any US companies that do this as well ?</div>
<div>Tkx</div>
<div>rg=20
</div></div></div></div></div></div></div></div></div></div></div></div></d=
iv></div></div></div></div></div></div></div></div></div></div></div></div>=
</div></div></div></div></div></div></div></div>
</div>
</blockquote>
</div>
</body></html>
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