New Tuning Tutorial: WeathermanShawn

[RevGTO]

The labels of the map must match the table exactly for paste with labels to work.
COL={GM.MAFFREQ}
ROW=Value

BTW, the tutorial has it inverted: COL=MAFFREQ, ROW=Value

[mr.prick]

I screwed up.
it should be:
ROW={GM.MAFFREQ}
COL=Value

If only paste and multiply won't work then there is something wrong with the map labels.
Post your map.

Pasting with labels is good for specifically selected cells,
if you copy the whole map and paste over the whole table that works as well.
Paste with labels is best IMO.

[joecar]

RevGTO, can you post some screenshots of your scantool map and your tunetool B5001 table.

[ display the map or table, do Ctrl-PrtScrn on your keyboard, then paste this into a Microsoft Paint file... then Reply to this thread, click Go Adavnced and then Manage Attachments. ]

When you created the map in the scantool, did you do these steps:
- in tunetool, copy-with-labels of B5001,
- in scantool, for each or row and column properties, Paste (without copying anything else in between).

The scantool map's axis's must look exactly like the B5001 axis's (including decimal digits).

[RevGTO]

Ok, guys, Here is the LTFTBEN table. After messing with trimming the image down in Paint, and saving it as a jpg, I finally got it to upload.

[RevGTO]

Here are the B5001 files; #1 is the file before the paste/multiply of the LTFTBEN results; #2 is after.

[WeathermanShawn]

Just eyeballing the table, it looks fine.

If you have a calculator, or can do math in your head..just check a few frequencies vs LTFTBENS..I.E. 4000 Hz X LTFTBEN = New Value, etc..

Its the only Table where you have to paste and multiply (with labels). I could probably figure out a way to eliminate that step..but it seemed more work to do that, than to just putting the new values back into the tune.

Then if you do another CALC.VE Table log..the precision and accuracy just gets better, as your MAF Freq (g/s) vs LTFTBENS becomes even more accurate.

Overall, how were your results?

[joecar]

RevGTO,

On the scantool map, does the second column say "Value" at the top (in post #126)...?

If it doesn't then paste-with-labels won't work.

[ it probably says "RPM"... in the map properties, on the Col tab, change the Title to "Value". ]

[mr.prick]

This map does not have matching labels, this is why you can't paste w/labels.

[joecar]

I have worked out the equations from first principles to gain an understanding of the big constants (and their units)...

The equations I came up with are in the attached calc_pid.txt.

Original equations: we don't really know where they came from, Paul doesn't have that info anymore...
New equations: I understand the equations, constants and unit analysis.

The differences between the new ones and the original ones:
- VE[%]: the new one is about 1% less than the original.
- VE[VE]: the new one is about 18% less than the original (and matches my existing B0101).

note: [VE] units is a shorthand for [g*K/kPa].

So, try the tutorial with the new equations and see how you go.

Use VE[%] if your B0101 table is in %.
Use VE[VE] if your B0101 table is in g*K/kPa.



See here for derivation:
showpost.php?p=117044&postcount=103
showpost.php?p=117048&postcount=104

[WeathermanShawn]

Joecar is being very humble when he said he 'worked out the equations'.

His actual work would probably take up half a page. He made something very difficult easy (at least to me). Thanks for the mathematical insight! It makes me wonder if VE Tables were really all done on a dyno, or mathematically solved in a similar manner...

Thanks..