LS1 IAT data in E40 format?

[blindsquirrel]

The sample P01 tunes I have, the IAT table X-axis is in percent but the E40 table axis is in Resistance. I figure this is a common thing solved long ago but I have searched for hours and read probably 100 threads, can't find it. I've seen mentions of something about a spreadsheet using some kind of math language I don't speak but they are old old threads and either the attachments are missing or the external links are 404s.

What are the magic search terms I need to find the right numbers to plug in?

[Creamo3]

I don't have the answer but would also like to answer to this as I've been looking as well and can't find the data.

[blindsquirrel]

I have a file from the repository (attached below) that claims a '98-'02 LS1 IAT conversion, SD, no MAF. The data is different than stock. However I have another sample I got from an attachment long ago (isn't in the repository), LS1 IAT, SD, no MAF, but still has the stock IAT data.

Partial screenshot of stock vs. repository file...IAT tables.png

[blindsquirrel]

OK. I found a datasheet for the threaded one (probably better anyhow), GM 25036751/ACDelco 213-190/Delphi TS-10077. It has actual R-vs-T numbers! In *C from 150 to -40! It has more cells than the table, you'll have to skip a few at the extremes. Change the axis labels to match the chart and there's no conversion math necessary.

[blindsquirrel]

I realized none of the tables I can find reference anything over 248*F, so it's OK to chop it off above that. Besides if you ever get there you got bigger problems to worry about.

Resistance axis values:

99.4	113.9	131.0	151.3	175.3	203.9	238.1	279	329	389	462	551	660	796	965	1177	1443	1778	2205	2752	3457	4373	5572	7153	9256	12073	15873	21044	28146	37994	51791	71332	99326

cell values (make sure you change to *C first if it's not already!):

120	115	110	105	100	95	90	85	80	75	70	65	60	55	50	45	40	35	30	25	20	15	10	5	0	-5	-10	-15	-20	-25	-30	-35	-40

Those should copy/paste directly into your table, the values have to be [tab] delineated or something.

An otherwise stock E40 file with the correct #25036751 data: