AOD Temperature
#1
AOD Temperature
Was thinking about adding a transmission temperature gauge.
Any idea where the best place is to put the pick-up?
Not real sure what type pick-up to use yet, guess it depends on where mounted.
Was going to do a separate gauge set with engine vacuum, trans pressure and temp.
Would also like rear end temp, outside air, etc., etc., but gotta stop somewhere!
Any idea where the best place is to put the pick-up?
Not real sure what type pick-up to use yet, guess it depends on where mounted.
Was going to do a separate gauge set with engine vacuum, trans pressure and temp.
Would also like rear end temp, outside air, etc., etc., but gotta stop somewhere!
#3
Was thinking about adding a transmission temperature gauge.
Any idea where the best place is to put the pick-up?
Not real sure what type pick-up to use yet, guess it depends on where mounted.
Was going to do a separate gauge set with engine vacuum, trans pressure and temp.
Would also like rear end temp, outside air, etc., etc., but gotta stop somewhere!
Any idea where the best place is to put the pick-up?
Not real sure what type pick-up to use yet, guess it depends on where mounted.
Was going to do a separate gauge set with engine vacuum, trans pressure and temp.
Would also like rear end temp, outside air, etc., etc., but gotta stop somewhere!
Trans oil temp sensors go in the pan.
#4
#5
You cant have in the port in the case you need to have flow around the sensor all the gauges are calibrated temp wise for pan installation.
#6
It doesn't need flow. Gauges are not calibrated temp wise for pan installation. Gauges should be calibrated to be accurate in the range of temperatures that they will see.
I used to be an automatic transmission cooling engineer at Ford. I instrumented cars and trucks and tested them under extreme cooling conditions. I usually had 15-25 thermocouples in the pan and one in the test port. I also recorded the temperature the TFT sensor saw.
The test port was always closest to the TFT temperature. The pan temperatures were uniformly quite a bit cooler.
I also saw tests run with clear plastic pans to try to get an idea of fluid movement in the pan. I was surprised by what we saw. There were many places in the pan where the fluid was stagnant. It didn't move around, it just sat there. So if you're reading this fluid you are not getting an accurate transmission temperature.
I used to be an automatic transmission cooling engineer at Ford. I instrumented cars and trucks and tested them under extreme cooling conditions. I usually had 15-25 thermocouples in the pan and one in the test port. I also recorded the temperature the TFT sensor saw.
The test port was always closest to the TFT temperature. The pan temperatures were uniformly quite a bit cooler.
I also saw tests run with clear plastic pans to try to get an idea of fluid movement in the pan. I was surprised by what we saw. There were many places in the pan where the fluid was stagnant. It didn't move around, it just sat there. So if you're reading this fluid you are not getting an accurate transmission temperature.
#7
It doesn't need flow. Gauges are not calibrated temp wise for pan installation. Gauges should be calibrated to be accurate in the range of temperatures that they will see.
I used to be an automatic transmission cooling engineer at Ford. I instrumented cars and trucks and tested them under extreme cooling conditions. I usually had 15-25 thermocouples in the pan and one in the test port. I also recorded the temperature the TFT sensor saw.
The test port was always closest to the TFT temperature. The pan temperatures were uniformly quite a bit cooler.
I also saw tests run with clear plastic pans to try to get an idea of fluid movement in the pan. I was surprised by what we saw. There were many places in the pan where the fluid was stagnant. It didn't move around, it just sat there. So if you're reading this fluid you are not getting an accurate transmission temperature.
I used to be an automatic transmission cooling engineer at Ford. I instrumented cars and trucks and tested them under extreme cooling conditions. I usually had 15-25 thermocouples in the pan and one in the test port. I also recorded the temperature the TFT sensor saw.
The test port was always closest to the TFT temperature. The pan temperatures were uniformly quite a bit cooler.
I also saw tests run with clear plastic pans to try to get an idea of fluid movement in the pan. I was surprised by what we saw. There were many places in the pan where the fluid was stagnant. It didn't move around, it just sat there. So if you're reading this fluid you are not getting an accurate transmission temperature.
B&M's and Automemters gauge are actually installed in the return line from the cooler.
Yes the true internal temp of the trans will be most accurate from a port of the internal workings.
But it is the temp of the trans fluid we are really concerned about much like the coolant in an engine, many internal parts of a motor are far hotter than 205-210°F of the coolant when at temp. And what is in the pan is what feeds the trans.
Basically none of the after market gauges have a sending unit design for an in port install nor are in temp range to read internal trans temps.
Unless you wanna start fabricating your own thermocouples and your own gauges then you are left with what the after market supplies and they supply in pan or return line kits with gauges set to read the temps seen in those locations.
And given the option of a return line install or pan install I'll take the pan install thank you very much.
http://static.summitracing.com/globa.../bmm-80212.pdf
http://www.autometer.com/media/manual/2650-267X.pdf
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#8
#9
ALL aftermarket trans temp gauges are calibrated temp range wise for an in pan or return line install.
B&M's and Automemters gauge are actually installed in the return line from the cooler.
Yes the true internal temp of the trans will be most accurate from a port of the internal workings.
But it is the temp of the trans fluid we are really concerned about much like the coolant in an engine, many internal parts of a motor are far hotter than 205-210°F of the coolant when at temp. And what is in the pan is what feeds the trans.
Basically none of the after market gauges have a sending unit design for an in port install nor are in temp range to read internal trans temps.
Unless you wanna start fabricating your own thermocouples and your own gauges then you are left with what the after market supplies and they supply in pan or return line kits with gauges set to read the temps seen in those locations.
And given the option of a return line install or pan install I'll take the pan install thank you very much.
http://static.summitracing.com/globa.../bmm-80212.pdf
http://www.autometer.com/media/manual/2650-267X.pdf
B&M's and Automemters gauge are actually installed in the return line from the cooler.
Yes the true internal temp of the trans will be most accurate from a port of the internal workings.
But it is the temp of the trans fluid we are really concerned about much like the coolant in an engine, many internal parts of a motor are far hotter than 205-210°F of the coolant when at temp. And what is in the pan is what feeds the trans.
Basically none of the after market gauges have a sending unit design for an in port install nor are in temp range to read internal trans temps.
Unless you wanna start fabricating your own thermocouples and your own gauges then you are left with what the after market supplies and they supply in pan or return line kits with gauges set to read the temps seen in those locations.
And given the option of a return line install or pan install I'll take the pan install thank you very much.
http://static.summitracing.com/globa.../bmm-80212.pdf
http://www.autometer.com/media/manual/2650-267X.pdf
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