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Hey Guys,
Ok so I'm working on the recent tune I got for my X-swap into a Ralliart Sportback
The timing maps we never even touched (who does that?..., but I'm not here to grip) so I need to create new ones. Looking at my logs I see that for the most part Timing Advance (TA) and Corrected Timing Advance (CTA) are the same. But there are times when they are WAAAAY off. I think I've found the table responsible, Timing Reduction vs Load/RPM; the values within represent the difference between TA and CTA.
So my question is, does this table serve any purpose? Has anyone zeroed it out to get CTA to match TA? Any odd....side effects possible?
Thanks much!
-Steve-
Looking at it a bit closer, it appears to be an on throttle/off throttle variance. On throttle they match up perfectly, off throttle is the variance (some sort of engine breaking aspect?).
Anyone....
When you hammer the gas hard (i.e. quick movement of gas pedal) this table applies for a second or 2.
You can see it in your logs. Say you never allow the car's timing to go lower than 6* at WOT, yet you log a few 4's in there. That is because this table told the ECU to pull a couple extra degrees of timing just because.
It works like a fuel enrichment table or those little jets on a carburetor that squirt gas in the engine when you pump the gas pedal.
Hello everyone.
I am learning to tune my car. Found this table and don't understand how it works. Does it add or subtract ignition timing? I also found that this map is different on different machines with the same engine. I can only assume that the difference is due to the weight of the body cars.
Help me understand how the map works in detail.
Below are examples for the 4B11 engine.
Outlander xl
Lancer
ASX(Outlander Sport)
The table helps to reduce potential of knock when going from cruise to larger throttle inputs.
Thanks! Yes. I understand what she does, but how? If I have an angle of 14 degrees in the ignition map, and this map indicates 10 degrees in this place, what will be 4?
Or some kind of differential distribution?
thanks
Thanks! Yes. I understand what she does, but how? If I have an angle of 14 degrees in the ignition map, and this map indicates 10 degrees in this place, what will be 4?
Or some kind of differential distribution?
thanks
The numbers in the table are the max timing it can take away with quick throttle inputs. Obviously after 3750 it no longer applies. There is also a timed base feature at work here. It's quite a small window.
I've found that this table is a big too aggressive if you have properly tuned ignition timing maps. The factory timing is very high in low load/rpm. I usually reduce the table(s) you have posted by at least 50%.
The numbers in the table are the max timing it can take away with quick throttle inputs. Obviously after 3750 it no longer applies. There is also a timed base feature at work here. It's quite a small window.
I've found that this table is a big too aggressive if you have properly tuned ignition timing maps. The factory timing is very high in low load/rpm. I usually reduce the table(s) you have posted by at least 50%.
Yes, I want to change them, but do not know how. I'll try to 50% . Thanks! These are three tables from different cars but with one 4b11 engine, not a turbo. I wondered why they are different if the engine is the same. It is possible that the matter is in the weight of the car body.
Hello everyone.
Please tell me, is there any connection between these two cards in work? We seem to have figured out the upper one above, but what is the lower one? What is it responsible for? Thanks in advance.
