Need some help with Calc VET

[joecar]

In the area 0.68-0.72 g/cyl between 4000-6000 rpm you would probably be ok with about 24 degrees.

[HellKnightHicks]

setup a map to log the same axis data as the spark tables- RPM on the rows and GM.DYNCYLAIR_DMA on the columns. The data of the map is KR.

Add 2 degrees of timing at a time globally until you get KR. Then back off 2degrees in the areas of KR. Keep the map very smooth. I always manually smooth on a VE, but use the built in functions to smooth on the timing. Smooth keeps away KR. Always assess the values as sane or not before you flash in tune.

Keep in mind most of your driving is in the .36-.72 gram/cylinder range so focus there. You want your map to approximate an old school distributor. Make sure the base idle timing is set well- and matches in ALL timing maps.

Also make sure you understand all the limiters, adders, subtractors, and multipliers to final timing. Set B5915 to 0 throughout.

Forgive my ignorance but im not really all that clear on how to create the map for the KR.

In the area 0.68-0.72 g/cyl between 4000-6000 rpm you would probably be ok with about 24 degrees.

K I can bump that up. In that range...,.

I think i have the PID I need logged in my current list from Calc.VET if im not mistaken.

Do I change the high and low Spark Tables? {B5913}{B5914}

B5913 If im interpreting this correctly.
Add 2 Degreese globally
Manually set
.68-.72 in the 4000-6000 RPM Range
To 24 Degrese
Then Smooth

[joecar]

Forgive my ignorance but im not really all that clear on how to create the map for the KR.

Open scantool, goto Maps tab, pick an letter subtab (say E)...
click the Edit Map Properties button,

open tunetool, goto table B5913, in upper left blank tile go rightclick->Copy With Labels...
immediately goto scantool, in map properties on each of the Column and Row tabs click Paste Labels (do not do anything else in between)...
now on the Column tab select the pid GM.DYNAIR_DMA, on the Row tab select the pid SAE.RPM...
on the Data tab select the pid GM.KR...
in the Data, Column, Row tabs checkmark Show Units...
Click Save (you will have to give it a filename), click Ok.

...
Do I change the high and low Spark Tables? {B5913}{B5914}
...

It might be easier to just copy paste the stock 2002 F-car HI/LO spark tables, see attached.

[HellKnightHicks]

Those 2 spark Tables are pretty agressivly different than what the stock truck tables are.

Your saying run that and watch for knock.

[Supercharged111]

When I did the 411 swap, I added as much as 11 degrees of timing in certain areas of the truck map but I do run 91 octane. A lot of it came in down low. The truck tables are so overly retarded from the factory it's just insane. I just started with global bumps. I don't think I started getting KR until I had about 8 in all over.

[joecar]

That reminds me, trucks almost do not enable PE...

set your B3616 to the same as the 2002 F-car B3616 (i.e. TPS 65%/35% split).

Also set B3609 to 0.050 s.

[Supercharged111]

Oh yeah, and the PE timer too. Neighbor's 6.0 truck had a 60 second timer so he essentially never got PE. Plus it was commanding 11.XX:1 if it ever got there and something like 20 degrees of timing at WOT (at 6100' altitude!). So much BS to cut out of there, at least on the Gen III it's right there. I need to get a better feel for where the Gen IV stuff is buried.

[joecar]

Yeah, Gen IV is hard to navigate and see things...

Gen V stuff is like Gen IV with added twists: the axis for VVE table is not MAP, but it is MAP:BARO ratio (so you have to make a calc pid for it)
and the pid SAE.LAMBDA may or may not work, and if it works, it may behave as 1/lambda (i.e. EQR)...

[HellKnightHicks]

Holly crap just those 2 car tables alone for the spark made a huge difference... I always run 93 Octane. Because I know what a difference fuel quality can make.

I was kind of worried because i wasnt getting any knock retard after bumping the table up to the F-Body timings.

[Supercharged111]

Don't forget those tables are for a higher compression engine with more efficient combustion chambers (i.e. wants less timing than the ol' Vortec), there's more on the table. I'll try to remember to upload my timing table when I get home, you could probably use it as a good starting point.