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DigiPanel Question

SW
Steve Weinstock
Thu, Apr 14, 2022 6:04 PM

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

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
T
tomkatz3@comcast.net
Thu, Apr 14, 2022 6:54 PM

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

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
JR
Jon Roche
Thu, Apr 14, 2022 7:47 PM

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/

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/
CD
Christo Darsch
Thu, Apr 14, 2022 10:14 PM

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

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
JH
James Hupy
Thu, Apr 14, 2022 10:58 PM

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

On Thu, Apr 14, 2022, 3:17 PM Christo Darsch gmcnet@darsch.net wrote:

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


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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 On Thu, Apr 14, 2022, 3:17 PM Christo Darsch <gmcnet@darsch.net> wrote: > 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: >
DH
David Herbert
Fri, Apr 15, 2022 2:11 AM

Which ATF do you recommend?

On Thu, Apr 14, 2022 at 5:59 PM James Hupy jamesh1296@gmail.com wrote:

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

On Thu, Apr 14, 2022, 3:17 PM Christo Darsch gmcnet@darsch.net wrote:

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


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--
David Herbert

Which ATF do you recommend? On Thu, Apr 14, 2022 at 5:59 PM James Hupy <jamesh1296@gmail.com> wrote: > 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 > > On Thu, Apr 14, 2022, 3:17 PM Christo Darsch <gmcnet@darsch.net> wrote: > > > 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*
BH
Bruce Hislop
Fri, Apr 15, 2022 2:18 AM

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

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
JH
James Hupy
Fri, Apr 15, 2022 2:27 AM

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

On Thu, Apr 14, 2022, 7:18 PM Bruce Hislop bhislop76@gmail.com wrote:

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


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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 On Thu, Apr 14, 2022, 7:18 PM Bruce Hislop <bhislop76@gmail.com> wrote: > 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: >