spark tables

[ZL1Killa]

I'm using the run spark table estimate on efi live and plotting rpm vs grams/cylinder like the actual spark table has and in some places up high i'm getting 45 degrees

is that too much? or i guess what I"m saying is that I'm using to seeing as high as 40 at most, so would 45 be too high to run?

[ZL1Killa]

.........so these values are ok?

[GMPX]

WAY too high under load, off throttle coasting that would be O.K.

Cheers,
Ross

[ZL1Killa]

now let me say that I'm using the estimation of the run spark in efi live and logging if versus grams/cylinder

so its the EST_Run_dma

should i be using that to get my spark table values? (I'm in SD mode so high octane is low octane)

or should i be using idle spark or base spark

[caver]

I use SAE.SPARKADV
Timing for cyl 1.

Max adv at full throttle runs 22 to 25 deg.

[ZL1Killa]

basically i want to dial in what my spark tables should be. and i thought that using the run spark estimation with grams/cylinder would tell me what i should be running. Am I going about this wrong? should i be making the plot for the SAE.SPARKADV Timing for cyl 1??

[ZL1Killa]

ok...to simplify things...


I want to dial in my spark tables...using the *.map ability in efi live I want to dial in my spark tables(similar to the ben factor) do I use the RUN SPARK estimation? if not what do I use.

the timing for cylinder 1?

the numbers that i'm getting now are ranging from about 4 degrees to as high as 38 or so

[caver]

At light throttle you will see numbers like that but at wot the numbers will be much lower.

I have made a map using SAE.Sparkadv RPM and Cylair so I can see the actual timing the motor is getting.

I have a similar map for KR so I can see where the knock retard is active and by how much.
And I have the same for IAT spark so I can see how much that is affecting the timing will probably do one for ECT as well.

[ringram]

Yes, estimated spark is close to the actual spark that carver is logging. If you log both you will see they are close to the same. I think if you want to do a map you will need to figure out the "ideal" advance and then the difference between "ideal" and estimated or sae.sparkadv should be taken off, or added to your high octane table.
Im currently trying to figure mine out at present I was running about 30deg spark under load. I understand 26 or so is about right.
I just put a known good baseline in there and will probably tweak that.
You really wont know what "ideal" is unless you dyno the car. VE is a little easier to figure out I think.

[caver]

Easiest way without a dyno is to adv timing in 2deg encrement untill you start getting knock and then back it off so that there is very little.
Monitor GM.Aspark to see what the spark scaler is doing after you enable the low octane table again and you should be done.