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LS3 MAF to LS1 IAT Curve

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Old 01-05-2015, 07:06 AM
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ctd
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Default LS3 MAF to LS1 IAT Curve

I'm running a large air intake with an LS3 MAF in my 2001 C5, it is a 416 stroker. I started chasing the AFR swings last summer, opening & closing the hood was all it took. So I loaded the bias & filter tables from the LS3 Corvette, re tuned the MAF with reasonable results.

Now I would like to get the IAT transfer curve correct but I'm at loss as to how to do so. I've searched & have found some discussion about this but no help as to how to go about correcting it. Maybe it is one of those closely guarded , I'm hoping it is just me missing something.......I was not very good in school.

Some have choose a number & applied that to the LS1 transfer curve, the characteristic of the LS3 looks very different so I'm sure this isn't the correct way. Any idea's?













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Last edited by ctd; 01-05-2015 at 07:14 AM.
Old 01-05-2015, 11:59 PM
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The IAT temp vs resistance chart is the same for all GM vehicles regardless of engine or year. A IAT sensor from 1987 celebrity has the same values as one from 2015 vette. I'm not sure if that's what you are after or not.
Old 01-06-2015, 07:17 AM
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Originally Posted by 01WS6/tamu
The IAT temp vs resistance chart is the same for all GM vehicles regardless of engine or year. A IAT sensor from 1987 celebrity has the same values as one from 2015 vette. I'm not sure if that's what you are after or not.
Then why would the IAT of the LS3 MAF when connected to my 2001 C5 read differently than the original LS1 MAF? Although not a huge difference, 15-20* is generally seen, this is not a one of situation.
Old 01-06-2015, 08:19 AM
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I remember reading something about this and it probably being due to the adapters



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