Measuring heatsoak vs actual AIT?
I was at the track on the weekend doing some datalogging and saw some AIT's of 180odd fahrenheit. I really wonder if this is accurate.
On the dyno I dont see these numbers so I want to know how to accurately test AIT and eliminate heatsoak. The sensors are in stainless or alloy tubes right before the throttle. Regular GM sensors. Can I dangle a sensor in the pipe or something to eliminate any chance of heatsoak? Run a hose over the pipe? Pls help me get accurate AIT data. Thanks, Dann |
Run a thermocouple into the intake and compare?
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Originally Posted by ryansmoneypit
(Post 1315817)
Run a thermocouple into the intake and compare?
Dann |
A really tight fitting rubber plug with a tiny hole for the wire. Cram the plug in as tight as you can, then trust it a few times, so the tube cuts into it and holds on.
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180°F. Your IC is broken.
I'm going to say this for the 10,000th time: STOP PUTTING AIT SENSORS RIGHT BEFORE THE TB SO YOUR HOT ASS RADIATOR *RADIATES* +200°F OF FURY ALL OVER THEM. seriously, if I could enforce it, I'd make it illegal and fine/jail all offenders on this site. move your AIT bung to your IC endtank. But, with that being said, if this is while driving, I'd trust the readings. So long as you have airflow over the sensor element, it's going to report back fairly actual temps. Sounds like your IC is severely undersized/poorly designed for your application. |
The throttle body intake elbow houses the IAT sensor and its right behind the 210* radiator.
Dann |
Originally Posted by ryansmoneypit
(Post 1315819)
A really tight fitting rubber plug with a tiny hole for the wire. Cram the plug in as tight as you can, then trust it a few times, so the tube cuts into it and holds on.
Dann |
N/A miatas can see well over 190-200°F intake temps
This is why someone invented this thing called a cold-air intake, to source air outside the hot-ass engine bay. |
Its turbo. It has an intercooler.
Originally Posted by nitrodann
(Post 1315818)
So how can this be done @>20psi, 7500rpm?
Dann |
Originally Posted by nitrodann
(Post 1315822)
Just go to an electronics store and do what you say and wire it to the ecu and go racing?
Dann 30 bucks worth of science equipment. |
Maybe it's a top mount intercooler.
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Originally Posted by ryansmoneypit
(Post 1315825)
If your set on not moving it, then yeah. Put a harbor freight cheapo multimeter with a thermo couple and a rubber plug. It's 20 psi, not 120.
30 bucks worth of science equipment. Best idea so far, it was all I could think of also. Dann |
1 Attachment(s)
https://www.miataturbo.net/attachmen...ine=1458044949
Certainly not an industry standard, I'm sure. But this is how I measured the air temp output on an air compressor. In this case, I had a steel pipe. Drilled a hole in the plug, dangle the probe wire in the airstream (don't touch the pipe wall) RTV, and done. This didn't leak at 120 psi. |
Champion, thanks.
Dann |
Originally Posted by Code Monkey
(Post 1315826)
Maybe it's a top mount intercooler.
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Originally Posted by Braineack
(Post 1315820)
180°F. Your IC is broken.
I feel like that could be possible especially if ambient temp is 80-90 outside. Or still would that just implicate a crappy intercooler? |
Originally Posted by slmhofy
(Post 1316011)
Really though, is 180F not feasible for a heat soaked intercooler, on track @ 20psi?
I feel like that could be possible especially if ambient temp is 80-90 outside. Or still would that just implicate a crappy intercooler? I can't answer any of your questions but id like to. |
Originally Posted by nitrodann
(Post 1315811)
I was at the track on the weekend doing some datalogging and saw some AIT's of 180odd fahrenheit. I really wonder if this is accurate.
On the dyno I dont see these numbers so I want to know how to accurately test AIT and eliminate heatsoak. The sensors are in stainless or alloy tubes right before the throttle. Regular GM sensors. Can I dangle a sensor in the pipe or something to eliminate any chance of heatsoak? Run a hose over the pipe? Pls help me get accurate AIT data. Thanks, Dann Just test and see if heat soak changes the readings. |
So heat the whole sensor, then remove the heat gun and see if.it registers atmospheric?
Sounds like an easy and good test. |
Originally Posted by nitrodann
(Post 1316046)
So heat the whole sensor, then remove the heat gun and see if.it registers atmospheric?
Sounds like an easy and good test. With the SC, if I let it heatsoak at idle, the AITs dropped if stomped it and went into boost, as there was a rush of cool air from the intercooler that cooled everything down. AIT sensor would show this, and infared temp gun/hand test confirmed it too. |
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