ty_ty13

iTrader: (42)

is there any way i can change this into killobars/map psi

on the timing tables this is all i see and i dont know how too understand or where to make adjustments...

someone needs to point me in the right direction on how to go about changing the spark with full knowledge of what im doing... not just shooting in the dark..


Thanks,

SSpdDmon

iTrader: (10)

http://forum.efilive.com/showthread.php?t=3603

see post 7

ty_ty13

iTrader: (42)

so that others can see and so i understand

less than .32 grams/cyl is you idle cells and very low throttle
between .32 grams/cyl and 60 grams/cyl is part throttle
above 60 grams/cyl is WOT

this is just a general area where the cells are sampled

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One thing I noticed that was useful...look at the table in the tuning software. Around the edges are the PIDs for the tables. If you're logging those PIDs in the scanner, you can open the tuning software at the same time and see which cells are being looked at by the PCM. For example, while logging/recording the GM.DYNCYLAIR_DMA, SAE.RPM, and SAE.SPARKADV, open the tuning software to one of the base spark tables and you'll see a light blue indicator in one of the cells showing the current cell being sampled. It will move around as you drive. The rest is just knowing when each table is being used by the PCM

ABOVE^^^^^

says i can log with flash scan and see when it is actually using a particular cell... THis shows dead-on what cell you using....
----------------------------------------------------

now my new question is-
is there any spread sheet or way of logging these^ 2 parameters and adjusting your tune accordingly like you do with the AUTO VE feature?
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im going to make some passes this weekend and becaues i dont know much about these new timing maps im going to treat it like a BBC blown car and demand a certain SPARK ONLY by RPM.... the grams/cyl kinda throws me off because im not sure that i want the spark to be determined by the amount of fuel the motor sees....

what if my car spins the tires the revs shoot up like crazy and it dumps more fuel than i want.... i definately dont want the timing going crazy because i slipped the tire...


What are the heavy hitters doing in some of these tables...

im really curious to see...

ty_ty13

iTrader: (42)

actually i think i just answered my own question...

if i want to lock out the timing just do it in the areas above the .60 grams/cyl


duh...


thanks spddmon for all the help you've given my today and the past week(s)

SSpdDmon

iTrader: (10)

No problem... Just keep in mind, every car is different. My stock internals Z usually idles around .12 grams/cylinder IIRC where as my H/C SS idles around .23~.26 and I've never seen less than .70 grams/cyl at WOT.

You log the values you hit in the scanner by creating a map on the F11 tab. Like it says, Shift+Ctrl+M to load a saved map and Ctrl+Enter to create a new one. Construct the map to reflect the table in the tuning software with the columns and rows with the PIDs like I mentioned above. The trick here is to "copy with labels" the entire table in the tuning software (right click on upper left grey box so entire table turns blue). Then, click the paste labels in the rows/columns for the map. The data is simply what you're logging to make your observations/changes. Again for spark, you would log GM.DYNCYLAIR_DMA (columns), SAE.RPM (rows), and SAE.SPARKADV (data) because that's how the table is constructed in the tuning software. If you were checking for detonation/knock retard, you would log GM.KR as the data PID instead of SAE.SPARKADV.

If hit F1 in the scanner, there's a little info on creating maps around page 126. Also, under Help>Tutorials, the AutoVE Tuning Tutorial shows you how to create a map on page 5.

ty_ty13

iTrader: (42)

so if you log the spark data like you speak of....
i can litterally take that table/map i just made and copy it into my high octane table....

is that going to give the motor exactically what the motor needs?

or is it a process that i need to keep doing over and over?


this is really good info... i love it!

ty_ty13

iTrader: (42)

hears another thing im not quite sure about.... and that is adjusting the idle... do you adjust this by the desired air flow table?

which one is it?


and how do you find the values that are needed in this "idle table" you speak of


Thanks,


Tyler

SSpdDmon

iTrader: (10)

Well, the example I gave above just shows you which part of the table you're using and reports the spark advance logged at the #1 cylinder. That way, you know where to make changes...based on the data you see when reviewing the log.

For idle, you need the RAFIG and RAGPN PIDs to adjust your desired airflow. But, idle also requires spark adjustment on non-stock internals cars. There's all kinds of info in the stickies here and searching over at EFI Live. You really have to read, read, read as that's how we all learned...unless you want to pay me to tutor you.

ty_ty13

iTrader: (42)

the only problem i have is my car is always in gear because it is a TH350.... but in park its just not under a load .... that tends to throw my idle off from park to gear...

Hobbszombie

subscribing

SSpdDmon

iTrader: (10)

dude - this thread is 2 years old

Hobbszombie

whoops guess I should look at the dates.

SSpdDmon

iTrader: (10)

No worries...LMK if you have any questinons.

ty_ty13

iTrader: (42)

hmmmm my FI days are now long gone... im a carb guy again with a BBC... way too much math involved for me in FI