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Old 10-24-2009, 10:40 AM   #71
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It doesn't happen with any of our systems. If heat soak caused this it would happen with our system also. If you touch our ceramic tube it will be hot on the out side. The sensor will still heat up through conduction. One more thing to consider, anytime air changes direction it heats up.
But doesn't the ceramic coating help insulate the MAF sensor from the radiant heat coming off the engine and radiator when parked?
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Old 10-24-2009, 10:51 AM   #72
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It doesn't happen with any of our systems. If heat soak caused this it would happen with our system also. If you touch our ceramic tube it will be hot on the out side. The sensor will still heat up through conduction. One more thing to consider, anytime air changes direction it heats up.
This was misleading. Our system along with all systems will do this over extended period of time. Our system takes longer and recovers faster from heat soak. When heat soak takes affect your IAT actually go up.
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Old 10-24-2009, 11:02 AM   #73
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This was misleading. Our system along with all systems will do this over extended period of time. Our system takes longer and recovers faster from heat soak. When heat soak takes affect your IAT actually go up.
Exactly... when the MAF senor housing becomes heat soaked (after turning the car off ) the IAT goes UP because it is measuring the temp of the MAF HOUSING, NOT the actual air going through the tube....

ADM actually moves the stock MAF sensor INSIDE of the heat shield/air box to help prevent this type of heat soak... or so it would seem. ADM commented on my best 1/4 time AFTER doing the stand alone IAT:

http://www.camaro5.com/forums/showpo...7&postcount=10
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Old 10-24-2009, 11:14 AM   #74
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But doesn't the ceramic coating help insulate the MAF sensor from the radiant heat coming off the engine and radiator when parked?
The MAF sensor heats up by conduction. Yes the ceramic refects radiant heat. It also helps with conduction this is why the out side of the tube is hot because it blocking heat transfer. With the outside of the tube being hot, and the sensor being bolted to the outside of the tube, it will tranfer heat into the sensor by conduction.
Last edited by CAI Inc; 10-24-2009 at 11:26 AM.
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Old 10-24-2009, 11:22 AM   #75
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Exactly... when the MAF senor housing becomes heat soaked (after turning the car off ) the IAT goes UP because it is measuring the temp of the MAF HOUSING, NOT the actual air going through the tube....

ADM actually moves the stock MAF sensor INSIDE of the heat shield/air box to help prevent this type of heat soak... or so it would seem. ADM commented on my best 1/4 time AFTER doing the stand alone IAT:

http://www.camaro5.com/forums/showpo...7&postcount=10
If ADM putting the sensor inside the box made a differance, wouldn't the IAT be lower than ours? Heat soak makes the actual air temp rise.
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Old 10-24-2009, 11:27 AM   #76
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If ADM putting the sensor inside the box made a differance, wouldn't the IAT be lower than ours? Heat soak makes the actual air temp rise.
Nobody but myself has done the 20 minute park test as far as I know...

That's the part I'm interested in...
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Old 10-24-2009, 11:43 AM   #77
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Nobody but myself has done the 20 minute park test as far as I know...

That's the part I'm interesting in...
All im trying to say is if you let any system site for 20 min it will heat soak. When this happens the inside and outside of the tube is hot which makes the air temps go up. Some companies also say the air traveling in the tube has no effect on IAT. If this were ture you IAT sensor would never recover from heat soak.
Last edited by CAI Inc; 10-25-2009 at 12:44 AM.
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Old 10-24-2009, 11:45 AM   #78
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If ADM putting the sensor inside the box made a differance, wouldn't the IAT be lower than ours? Heat soak makes the actual air temp rise.
Actually looks at the starting IAT temps... they are basically reading ambient or close to it! So HEAT SOAK was not an issue!

This issue I'm talking about is when you park the car for 20 minutes and the IAT reads 120 to 140 degrees! Then you drive around which in theory is getting fresh air into the engine bay and intake but yet the IAT is still reading 90 to 100 degrees even when the ambient temp is more like 70...

Ok... apparently those who understand what I'm saying understand... and those that don't understand will never understand...

If anyone has any questions feel free to PM me... LOL!
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Old 10-24-2009, 05:52 PM   #79
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I understand hehe.
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Old 10-24-2009, 06:06 PM   #80
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Actually looks at the starting IAT temps... they are basically reading ambient or close to it! So HEAT SOAK was not an issue!

This issue I'm talking about is when you park the car for 20 minutes and the IAT reads 120 to 140 degrees! Then you drive around which in theory is getting fresh air into the engine bay and intake but yet the IAT is still reading 90 to 100 degrees even when the ambient temp is more like 70...

Ok... apparently those who understand what I'm saying understand... and those that don't understand will never understand...

If anyone has any questions feel free to PM me... LOL!
lol i understand what your saying.

its not the initial start up heat soak while running kind of issue...its after its been run, turned off and then turned back on, and the computer still thinks its pulling in HOTT air when in theory its really not..
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Old 10-24-2009, 06:21 PM   #81
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lol i understand what your saying.

its not the initial start up heat soak while running kind of issue...its after its been run, turned off and then turned back on, and the computer still thinks its pulling in HOTT air when in theory its really not..
Yep, you got it! When you restart your car it is measuring the temp of the heat soaked MAF sensor housing NOT the temperature of the air going through the sensor...
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Old 10-24-2009, 08:41 PM   #82
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Yep, you got it! When you restart your car it is measuring the temp of the heat soaked MAF sensor housing NOT the temperature of the air going through the sensor...
so you are saying it's "tricking" the PCM?

JUST KIDDING!!!! please don't shoot me!!!
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Old 10-24-2009, 08:50 PM   #83
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i understand what your saying too and what their saying, i would rather get a CAI that moves the thing inside of the heat shield as i do not like voiding my warranty. But for curiosity's sake is it possible GM knows about heat soak and is having their computers already adjust for it. I know your car runs faster when its been moved because its a better position but could that reason be because your car is now overcompensating which could cause problems in the future
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Old 10-24-2009, 09:47 PM   #84
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CAI Inc. question for you do you recommended the fuses be pulled to reset the ECM when your intake is installed? I emailed you a bunch of question on the website i might order from you soon but i forgot that one lol
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