I am making an air cleaner for my L03. The tech article says to relocate the temperature sensor to a cooler place. Where would this be?

 

Stock single snorkle air cleaner?

I would put to the side or bottom of the plastic scoop that mounts to the radiator wall.

 

Actually yeah I am planning on replacing the snorkle with a 350 snorkle. I can't seem to fit a duel on the lo3, so I thought this would be a good option. If you have any suggestions, feel free.

When you said to relocate the sensor to the plastic scoop, so you mean I should have the sensor in the scoop, or outside of it? I thought the sensor controls the idol is the case?

 

Drill a hole in the side of the plastic piece, use 2 big washers & 2 nuts. nut/washer/plastic/washer/nut, to mount it into the side of the plastic tubing. That's how I put mine right after the MAF on my TPI.

 

Not to keep asking the same question, but the sensor would be outside of the scoop? I mean the part that's inside the air cleaner at present

 

THROUGH the scoop. Sensor end in, rest of it outside. Like how a spark plug is in a head.

 

Aaah comprende! that makes sense. Does the sensor have anything to do with idol rpm? I also was planning on removing the scoop, and ducting it to that hole behind the headlights. Maybe I could relocate the sensor to the duct.

 

Sorry...I know nothing about tuning. But I would suspect it applies as a variable, in how much fuel to put in.

 

The IAC controls your idle rpm not the intake air temperature (IAT) sensor. The PCM uses the air temperature information as correction factors in the calculation of fuel and spark. Relocation of the sensor to a remote location is probably not a good idea.

 

Please give something as to WHY it wouldn't a good idea, instead of just saying.

 

The third gen tech article said to relocate the sensor to a cooler place. Do you think this is bad info? If the sensor was a factor in fuel and spark, it would stand to reason that the engine would think it was cold, or cooler that what it actually is..... That's the extent of my brain storm. What's your take on this?

 

This article would apply to relocation as well. It all boils down to measuring the air temp that is coming into the engine, not the ambient air temp or a "faked" temp like in the article talks about with some of the mods.
http://www.angelfire.com/home/SH0ckf..._Debunked.html

 

Your gonna trust an Angelfire.com a"article"? That article is so full of ****, I don't have the time to debunk all the junk written there.

I did mine 2 years ago. My MPG went up, my emissions were almost nil at the last test.....

"High Speed-2692rpm
HC 220-limit..............4-my reading
CO% 1.20-limit.............0-my reading

Idle
HC 220-limit............16-my reading
CO% 1.20-limit.........0.01-my reading"

OUR method allows the ECM to see what the air temp actually is & the sensor doesn't get heat soaked where GM put it. We don't measure ambient air. We measure what it actually coming in through the intake duct....What the engine actually uses.

If we were "faking" it, we'd simply relocate the IAT to an outside air stream, where the cool moving air blowing over it, would be what the ECM thinks is coming in.

 

Way to be an ******* and reply with a condescending response..... that was really helpful. I was referring to his comment of relocating the sensor to that hole behind the headlights. This would definitely not be measuring air coming into the engine. I do agree with moving the sensor farther up in the intake tract away from the engine heat.

 

My reply was towards the article, not you. So don't get bent out of shape about it.

 

I was going to put the duct up to the hole behind the headlights. Not the sensor. I meant to say I would place the sensor in the duct since I wouldn't be using the scoop. Does that make more sense? It would measure the air temp coming into the engine?

 

just try to put the sensor somewhere near the inlet of your ducting, regardless of where this inlet may go. basically you want to measure the temp of the incoming air without any heat soak of the engine, in contrast to the very hot stock location (but this was already pointed out in this thread). that's about it.

 

Makes sense. I'll give it a go.

 

How is the temp sensor removed from the air cleaner? I just don't wanna break anything. Been there, done that.

 

Interesting numbers. I don't really know what they mean lol, We don't have emissions testing here in Mich. I am going to do as you suggested and put the sensor in the duct near the inlet. Why GM didn't do this in the first place is beyond me. I am still perplexed about the "faking it". The air coming in the duct one would think would be the about the same temp as anywhere around the car.

 

The IAT readings are more accurate were it is.

Dont get confused with Stephen's posts, his TPI had a completly different IAT conception.

 

You believe I should leave it where it is in the pan? I mean the darn thing runs good anyway. I just want to optimize it...

 

Wow. All this hoopla over an IAT? Anyways, leave it where it is and keep your snorkel clean and keep a good filter in it regularly. Switching to a 350 snorkel is kinda well, null. The only REAL option for TBI air intake (and even it's questionable) is using an open air element. In which case you would want to punch the tab out in the base and place the IAT there. The pro is yes, the TBI is allotted more air, however, it is drawing in hot air instead of cool, channeled, air. Not recommended for high traffic conditions.

GM got the IAT right, they just made a shrimp d!ck snorkel for a car that already has major issues getting cool air.

And in case no one has noticed....Spectre has some BAD @SS air solutions...
http://www.spectreperformance.com/#CATALOG.761

 

An ECM reading a temp, is an ECM reading a temp, regardless of TBI/TPI/LT1/LS1...whatever engine. A reading is a reading.

The IAT is OK where it is, but not the BEST location it could be in. Every time you stop, that locations tep rises & the IAT gets a litte hotter & a little less correct of a reading. Meaning the ECM has to do less adjusting in its programming.

Move it & you'll start noticing the difference in how the engine runs, especially after the engine gets hot.

 

The heat soacking your refering to, is not that bad in the tbi air cleaner, specially with the later model thirdgen's plastic IAT sensor, they react ok. Monitoring IAT readings proves it.
I never observed the IAT readings on a TPI to comment for it.

Dont know how it is with the TPI ECM's, but I suggest to all TBI owners who seriously whant to play with IAT, to upgrade to EBL flash. It has IAT-coolant filter to adjust how much IAT to take into account and it also has a IAT specific SA table adapter to allow sparkin it a little earlier or later, with different IAT (not the sensor) for best performance.

 

Oh

 

Part of the upgrade I did, was switching from a TPI IAT to a TBI IAT.

The TPI IAT is actually just a water temperature sensor. Maybe just swapping the sensor, but in the stock location woulda done a bang up job? I dunno. Either way, I like the idea of it sitting in plastic in a cool air stream, not in a hot manifold.