DigiPanel Question

S

SteveW

Active member
Nov 3, 2012
567
44
28
Greetings from Southern California !!

Might any of you fine folks know the details of the "high-speed solid-state engine-temperature sensors" used on our DigiPanels ??

I'm contemplating the installation of a proper temperature sensor port on my transmission pan (and probably a drain plug) and would like to install a
typical sensor rather than the "on a bolt" sensor that the DigiPanel currently uses.

And - considering the same strategy for water temperature too.

Thank you for all of the expertise shared here.

Steve W
1973 23 Yellow


--
Steve W
1973 : 23'
Southern California
 
Steve.

I believe Summit Racing sells all the weld on Bung plugs you need. I installed one on my oil pan, trans pan and final drive cover. All worked out
well.

There are also after markket plugs which I am sure will do just as good.

Good Luck and take care,
Tom K.
--
Tom & Oki Katzenberger,
Kingsville, Maryland,
1977 23' Birchaven, 455 C.I.D., Micro Level, Howell EBL-EFI Spark Control, Macerator, York Air Compressor, 6 Wheel Disc, Quadra Bag, Onan W/Bovee
Ignition
 
I am not familiar with the digipanel, other then it does have bolt on sensors.....

weld on bungs for the tranny pan are easily bought from napa, summit, or amazon.... and I recommend that for 2 reasons. 1. tranny temp sensor.
2. works as a drain plug as well!

--
Jon Roche
75 palm beach
EBL EFI, manny headers, Micro Level, rebuilt most of coach now.
St. Cloud, MN
http://lqqkatjon.blogspot.com/
 
Applied GMC now sells the DigiPanel. They can refer you to a technical guy who may be able to assist with your question about the senders. As far as
the trans temp, consider getting a finned aluminum pan from ragusarv.com -- they have a fitting built in along with a drain plug. The Ragusa pan is
reported to help with cooling although some folks don't like it because it protrudes a bit lower than stock, increasing the risk of impact damage.
--
Christo Darsch
GMC Nor'easters
1977 Eleganza II - "The Komet"
3.50 Power Drive, Disc Brakes, Alcoas
Weymouth, MA
 
I have a Ragusa finned aluminum transmission pan, and it has a drain plug
as well as a plug for a temp sending unit, which I also use. Transmission
temp rarely moves the needle. That finned pan works very well and it has an
extra quart capacity. A good investment as far as I can tell.
I also removed the final drive pan and welded in a bung for a temp.
sensor. That one makes me nervous. Final drive temps exceed 300 ° Farenheit
on heavy uphill climbs. Before I had the temp sensor, I rarely even thought
about final drive temps. I use a synthetic final drive lube as well as ATF.
CHEAP INSURANCE.
Jim Hupy
Salem, Oregon

> Applied GMC now sells the DigiPanel. They can refer you to a technical guy
> who may be able to assist with your question about the senders. As far as
> the trans temp, consider getting a finned aluminum pan from ragusarv.com
> -- they have a fitting built in along with a drain plug. The Ragusa pan is
> reported to help with cooling although some folks don't like it because it
> protrudes a bit lower than stock, increasing the risk of impact damage.
> --
> Christo Darsch
> GMC Nor'easters
> 1977 Eleganza II - "The Komet"
> 3.50 Power Drive, Disc Brakes, Alcoas
> Weymouth, MA
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
>
 
Which ATF do you recommend?

> I have a Ragusa finned aluminum transmission pan, and it has a drain plug
> as well as a plug for a temp sending unit, which I also use. Transmission
> temp rarely moves the needle. That finned pan works very well and it has an
> extra quart capacity. A good investment as far as I can tell.
> I also removed the final drive pan and welded in a bung for a temp.
> sensor. That one makes me nervous. Final drive temps exceed 300 ° Farenheit
> on heavy uphill climbs. Before I had the temp sensor, I rarely even thought
> about final drive temps. I use a synthetic final drive lube as well as ATF.
> CHEAP INSURANCE.
> Jim Hupy
> Salem, Oregon
>

>
> > Applied GMC now sells the DigiPanel. They can refer you to a technical
> guy
> > who may be able to assist with your question about the senders. As far as
> > the trans temp, consider getting a finned aluminum pan from ragusarv.com
> > -- they have a fitting built in along with a drain plug. The Ragusa pan
> is
> > reported to help with cooling although some folks don't like it because
> it
> > protrudes a bit lower than stock, increasing the risk of impact damage.
> > --
> > Christo Darsch
> > GMC Nor'easters
> > 1977 Eleganza II - "The Komet"
> > 3.50 Power Drive, Disc Brakes, Alcoas
> > Weymouth, MA
> > _______________________________________________
> > GMCnet mailing list
> > Unsubscribe or Change List Options:
> >
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
>
--
*David Herbert*
 
Steve,
I think you are asking about the actual DigiPanel temperature sensor parameters. If I recall the DigiPanel does not use a standard sensor setup such
as the 0-90 ohm GM sensor, but rather uses the temperature vs current gradient of a common transistor E-B junction. It doesn't use a temp sensor chip
such as a LM34.

I looked at one of mine but the markings had been ground off. Try a 2N3904 emitter-base junction and compare it to an OEM DigiPanel sensor and see
how close it is.

Just my 2 cents

--
Bruce Hislop
ON Canada
77PB, 455 Dick P. rebuilt, DynamicEFI EBL EFI & ESC.1 ton front end
http://www.gmcmhphotos.com/photos/showphoto.php?photo=29001
My Staff says I never listen to them, or something like that
 
I use Valvoline Synthetic. It was what Manny recommended in my
remanufactured transmission. I suspect that other brand names would work as
well. But, that is the name brand that I have always used. Brand loyalty
and all that, I guess.
Jim Hupy
Salem, Oregon

> Steve,
> I think you are asking about the actual DigiPanel temperature sensor
> parameters. If I recall the DigiPanel does not use a standard sensor setup
> such
> as the 0-90 ohm GM sensor, but rather uses the temperature vs current
> gradient of a common transistor E-B junction. It doesn't use a temp sensor
> chip
> such as a LM34.
>
> I looked at one of mine but the markings had been ground off. Try a
> 2N3904 emitter-base junction and compare it to an OEM DigiPanel sensor and
> see
> how close it is.
>
> Just my 2 cents
>
> --
> Bruce Hislop
> ON Canada
> 77PB, 455 Dick P. rebuilt, DynamicEFI EBL EFI & ESC.1 ton front end
> http://www.gmcmhphotos.com/photos/showphoto.php?photo=29001
> My Staff says I never listen to them, or something like that
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
>
 
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