Cylinder head temperature gauge |
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Cylinder head temperature gauge |
Geezer914 |
Jan 13 2021, 03:53 PM
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#1
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Geezer914 Group: Members Posts: 1,382 Joined: 18-March 09 From: Salem, NJ Member No.: 10,179 Region Association: North East States |
VDO no longer makes them, any other gauges out there?
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BeatNavy |
Jan 13 2021, 04:20 PM
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#2
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Certified Professional Scapegoat Group: Members Posts: 2,924 Joined: 26-February 14 From: Easton, MD Member No.: 17,042 Region Association: MidAtlantic Region |
Oh yeah. At least a few of us use this one:
https://www.dakotadigital.com/index.cfm/pag...prod/prd347.htm |
barefoot |
Jan 13 2021, 05:01 PM
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#3
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Senior Member Group: Members Posts: 1,269 Joined: 19-March 13 From: Charleston SC Member No.: 15,673 Region Association: South East States |
Here's mine
https://www.ebay.com/itm/Digital-DC-Tempera...it/172101324800 And matching TC's https://www.ebay.com/itm/J-Type-Thermocoupl...HT/172302303136 Cold junction compensated and works quite well (IMG:style_emoticons/default/smile.gif) |
Olympic 914 |
Jan 13 2021, 05:26 PM
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#4
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Group: Members Posts: 1,662 Joined: 7-July 11 From: Pittsburgh PA Member No.: 13,287 Region Association: North East States |
Oh yeah. At least a few of us use this one: https://www.dakotadigital.com/index.cfm/pag...prod/prd347.htm (IMG:style_emoticons/default/agree.gif) They also have a nice matching digital oil temp gauge. |
930cabman |
Jan 13 2021, 05:56 PM
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#5
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Advanced Member Group: Members Posts: 3,000 Joined: 12-November 20 From: Buffalo Member No.: 24,877 Region Association: North East States |
I just ordered a new set of VDO gauges, oil temp, oil pressure, clock and voltmeter from Summit and also found out they are no longer making a cyl head temp gauge. Nuts. I was hoping to fill the console with a 5 gauge cluster. Off to plan B
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jeffdon |
Jan 13 2021, 07:01 PM
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#6
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Senior Member Group: Members Posts: 1,094 Joined: 24-October 06 From: oakland, ca Member No.: 7,087 Region Association: None |
I got mine from https://www.aircraftspruce.com/
They have one that looks super close to VDO gauges, plus they are temperature compensated. VDO are not, |
Mark Henry |
Jan 13 2021, 09:36 PM
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#7
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that's what I do! Group: Members Posts: 20,065 Joined: 27-December 02 From: Port Hope, Ontario Member No.: 26 Region Association: Canada |
I have a micro1000 from Aircraft Spruce, the small round CHT is real close fit with the aftermarket VDO cockpit gauges.
Con is the numbers are a bit small... but if the needle stays straight up (300F) I'm golden. Pretty sure it's the same one as Jeff's. |
Charles Freeborn |
Jan 14 2021, 01:03 AM
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#8
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Member Group: Members Posts: 244 Joined: 21-May 14 From: United States Member No.: 17,377 Region Association: Pacific Northwest |
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Geezer914 |
Jan 14 2021, 08:35 AM
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#9
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Geezer914 Group: Members Posts: 1,382 Joined: 18-March 09 From: Salem, NJ Member No.: 10,179 Region Association: North East States |
Thanks for the replies, went with a Dakota Digital.
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mate914 |
Jan 14 2021, 09:32 AM
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#10
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Matt Group: Members Posts: 737 Joined: 27-February 09 From: Eagles mere, PA Member No.: 10,102 Region Association: North East States |
If I may ask? Which spark plug do you install CHT probe on? I would like to know for both the six and four cylinders.
Thank you. |
Mark Henry |
Jan 14 2021, 09:57 AM
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#11
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that's what I do! Group: Members Posts: 20,065 Joined: 27-December 02 From: Port Hope, Ontario Member No.: 26 Region Association: Canada |
If I may ask? Which spark plug do you install CHT probe on? I would like to know for both the six and four cylinders. Thank you. /4 the #3 cylinder runs the hottest. /6 it doesn't matter as much, some say #1, some say #6....I used #1 just because it's the easiest to run to. Edit: For the /6 the #1 cylinder is the easiest for me to get to as I'm twin plug and I have a lift. I have my sensor on the lower #1 plug hole. On a standard 6 plug engine the 4/5/6 side may be easier to get to. This is important because you must take care not to twist or cut wires on plug install. On my six I cut/notched the plug hole seal for the CHT sensor wires. |
veltror |
Jan 14 2021, 03:55 PM
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#12
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Senior Member Group: Members Posts: 928 Joined: 27-April 08 From: Potters Bar Herts UK Member No.: 8,978 Region Association: None |
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930cabman |
Jan 14 2021, 04:12 PM
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#13
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Advanced Member Group: Members Posts: 3,000 Joined: 12-November 20 From: Buffalo Member No.: 24,877 Region Association: North East States |
Just read your rustoration thread, heroic to say the least. Keep the faith and hopefully soon your 914 will be rolling down the road. |
pete000 |
Jan 14 2021, 06:23 PM
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#14
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Senior Member Group: Members Posts: 1,885 Joined: 23-August 10 From: Bradenton Florida Member No.: 12,094 Region Association: South East States |
I have a NOS MIB VDO CHT stashed away...
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FlacaProductions |
Jan 14 2021, 06:30 PM
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#15
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Senior Member Group: Members Posts: 1,554 Joined: 24-November 17 From: LA Member No.: 21,628 Region Association: Southern California |
LOL - NOS MIB VDO CHT.
Very cool but not temperature compensated, is it? Maybe not a big deal but nice not to have to do math in public. |
930cabman |
Jan 14 2021, 07:15 PM
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#16
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Advanced Member Group: Members Posts: 3,000 Joined: 12-November 20 From: Buffalo Member No.: 24,877 Region Association: North East States |
Can someone educate me with regards to "temperature compensated"
thank you |
davesprinkle |
Jan 14 2021, 08:10 PM
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#17
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Senior Member Group: Members Posts: 720 Joined: 13-October 04 From: Berkeley, CA Member No.: 2,943 Region Association: None |
Can someone educate me with regards to "temperature compensated" thank you There are various types of temperature sensors. The kind called a "thermocouple" uses a very specific alloy of wire. Accurately measuring temperature with one of these sensors requires that the measurement circuit know the temperature at the point that this alloy is connected to copper. (This is misleadingly called the "cold-junction" temperature.) Cheap devices omit this cold-junction temp measurement and are less accurate as a result. |
FlacaProductions |
Jan 14 2021, 09:07 PM
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#18
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Senior Member Group: Members Posts: 1,554 Joined: 24-November 17 From: LA Member No.: 21,628 Region Association: Southern California |
as i understand it - and i could be wrong - non-temperature compensated gauges will read out higher as the ambient temperature goes up and lower as it goes down. ie: if your engine temp is (for example) 250 at 72 degrees, a non-compensated display will show 260 at 82.
temp-compensated will show 250 no matter the ambient temp. |
Highland |
Jan 14 2021, 10:15 PM
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#19
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Senior Member Group: Members Posts: 511 Joined: 8-August 11 From: San Diego, CA Member No.: 13,418 Region Association: Southern California |
I think Ratwell has a pretty good explanation:
https://www.ratwell.com/technical/VDOGauges.html#cht It almost seems VDO assumed if your head temps got high the engine compartment temperatures would also be high so they compensated with the scale. I have a VDO gauge and still trying to figure out how to interpret the information based on the outside air temperature that day. Any recommendations would be appreciated. |
aharder |
Jan 14 2021, 10:29 PM
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#20
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Advanced Member Group: Members Posts: 4,370 Joined: 6-September 11 From: Dallas Texas Member No.: 13,524 Region Association: Southwest Region |
I had a VDO for years and then it failed. I ended up with this one and I've been
pleased with it so far. https://discountegauges.com/deg-cylinder-he...10-901-12-12ft/ |
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