IAT sensors
Thread Starter
Teching In
Joined: Jul 2011
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IAT sensors I have an LS2 that I'm going to delete the MAF and just SD tune. Is there much differences between open and close element temp sensors? Here's the two type I have been looking at. Thoughts?
http://www.amazon.com/Open-Element-I.../dp/B005OS5G4S
http://www.amazon.com/Closed-Element.../dp/B005OS5FWQ
http://www.amazon.com/Open-Element-I.../dp/B005OS5G4S
http://www.amazon.com/Closed-Element.../dp/B005OS5FWQ
The IAT sensor is one of the industry-standard calibrations
because you can get ones that dead-match from Digi-Key
and lots of other places.
The closed one I think is a safety deal, if the leads break
the "nugget" stays in the cage. But that does cut air
access and add thermal mass slowing response.
If you're not boosted SD then you don't need IAT to be
fast. I am much happier now that it's out of the duct
altogether.
because you can get ones that dead-match from Digi-Key
and lots of other places.
The closed one I think is a safety deal, if the leads break
the "nugget" stays in the cage. But that does cut air
access and add thermal mass slowing response.
If you're not boosted SD then you don't need IAT to be
fast. I am much happier now that it's out of the duct
altogether.
IAT effects Ve calculations for Sd.. It also effects engine temp model, 273.15+IAT+((ECT-IAT)*factor).
It also effects Torque model, even for Air conditioning.
Also just like ANY sensor out there, they all have thier own set of offset scalers to be correct.
In our Cummins files we started to put in those values for people to adjust those values.
Maybe when i get time, i will revisit the cals for gm gas and put that kind of stuff into the ls1 based models... Then things can be more exact for you guys when swapping sensors.
It also effects Torque model, even for Air conditioning.
Also just like ANY sensor out there, they all have thier own set of offset scalers to be correct.
In our Cummins files we started to put in those values for people to adjust those values.
Maybe when i get time, i will revisit the cals for gm gas and put that kind of stuff into the ls1 based models... Then things can be more exact for you guys when swapping sensors.
TECH Fanatic
Joined: Oct 2011
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Okay, this might be a stupid question and I appologize. My IAT had the plastic piece break off (cage) when the autoparts guy dropped it on the counter. I went ahead and installed it after cleaning the rest the cage off. It was only dropped about a foot. Is this a big deal? Should i replace. The metal piece that hangs looked fine so I didn't worry about it. We haven't fired it up yet so I could replace if I need to.
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Verdad Gallardo If he dropped it and broke it I woulda made him replace it regardless whether u got it there or not. It may have been an accident but it's what shoulda been done. It'd be good business practice IMO
Thread Starter
Teching In
Joined: Jul 2011
Posts: 31
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