Tune Very Inconsistent
1) I have an average RPM jump of 50rpm..
You have an average RPM jump of about 400
part of that is the amount of stuff you log, but also what gear.
2) forget what is on the fuel map, that is just a number for easy reading, it has no real association with what AFR you are actually getting...
3) when comparing AFR's you need to pick the same load+rpm point, so be worried if one log 4500/200 is 10.2 and another log 4500/200 is 11.7 (unless you are quickly spooling through that area)
4) I would add fuel into your 5000/5500 rows (for 200-250load), that is SUBTRACT 0.5 AFR from the number in the fuel map
The trick to tuning is repeating the conditions of the pull on which you are tuning. That means same starting RPM, and same piece of road in the same direction, and of course same gear.
Also back-to-back pulls might vary a little as the engine/air temp's change...
Normally I do 1 pull on the way to work, its always the same section of road at about the same time of day... And I pretty much always have the same RPM - unless the boost spikes a little or whatever...
You have an average RPM jump of about 400
part of that is the amount of stuff you log, but also what gear.
2) forget what is on the fuel map, that is just a number for easy reading, it has no real association with what AFR you are actually getting...
3) when comparing AFR's you need to pick the same load+rpm point, so be worried if one log 4500/200 is 10.2 and another log 4500/200 is 11.7 (unless you are quickly spooling through that area)
4) I would add fuel into your 5000/5500 rows (for 200-250load), that is SUBTRACT 0.5 AFR from the number in the fuel map
The trick to tuning is repeating the conditions of the pull on which you are tuning. That means same starting RPM, and same piece of road in the same direction, and of course same gear.
Also back-to-back pulls might vary a little as the engine/air temp's change...
Normally I do 1 pull on the way to work, its always the same section of road at about the same time of day... And I pretty much always have the same RPM - unless the boost spikes a little or whatever...
1) I have an average RPM jump of 50rpm..
You have an average RPM jump of about 400
part of that is the amount of stuff you log, but also what gear.
2) forget what is on the fuel map, that is just a number for easy reading, it has no real association with what AFR you are actually getting...
3) when comparing AFR's you need to pick the same load+rpm point, so be worried if one log 4500/200 is 10.2 and another log 4500/200 is 11.7 (unless you are quickly spooling through that area)
4) I would add fuel into your 5000/5500 rows (for 200-250load), that is SUBTRACT 0.5 AFR from the number in the fuel map
The trick to tuning is repeating the conditions of the pull on which you are tuning. That means same starting RPM, and same piece of road in the same direction, and of course same gear.
Also back-to-back pulls might vary a little as the engine/air temp's change...
Normally I do 1 pull on the way to work, its always the same section of road at about the same time of day... And I pretty much always have the same RPM - unless the boost spikes a little or whatever...
You have an average RPM jump of about 400
part of that is the amount of stuff you log, but also what gear.
2) forget what is on the fuel map, that is just a number for easy reading, it has no real association with what AFR you are actually getting...
3) when comparing AFR's you need to pick the same load+rpm point, so be worried if one log 4500/200 is 10.2 and another log 4500/200 is 11.7 (unless you are quickly spooling through that area)
4) I would add fuel into your 5000/5500 rows (for 200-250load), that is SUBTRACT 0.5 AFR from the number in the fuel map
The trick to tuning is repeating the conditions of the pull on which you are tuning. That means same starting RPM, and same piece of road in the same direction, and of course same gear.
Also back-to-back pulls might vary a little as the engine/air temp's change...
Normally I do 1 pull on the way to work, its always the same section of road at about the same time of day... And I pretty much always have the same RPM - unless the boost spikes a little or whatever...
I know you don't use maptracer but on the same log, if you hover over one of my cells in the 180+ load range, it shows you the logged AFR's. Well, a lot of times the AFR's will be anywhere from 0.2 to almost a full point away from each other. That, and sometimes one cell right next to, or right under one another can be about a point away, when really it should be more smooth.
I will do what you said in the rest of your post in the future, but I'm still trying to figure out why such big fluctuations on the same log, and same WOT runs......
ahh but 4500 is right in your spool zone - so AFR's can be quite different...
thats also why its important to start the pull outside of the spool area - ie 2000...
that way you should be getting the same spool RPM in each pull
thats also why its important to start the pull outside of the spool area - ie 2000...
that way you should be getting the same spool RPM in each pull
Well I was just using that as an example but the same thing happens elsewhere too. For example, same situation, but at 7000 RPM and 200 load, I have data points at 11.1 and 11.7
And also, its kinda weird, it seems like between ~4600 RPM and ~5200, my AFR's go into the mid 10's or so, where everywhere else around that is mid to high 11's.
Weird it's fluctuating so much.
And also, its kinda weird, it seems like between ~4600 RPM and ~5200, my AFR's go into the mid 10's or so, where everywhere else around that is mid to high 11's.
Weird it's fluctuating so much.
ok well on your before_ecu_reset_6-7-2010 log
I setup a filter for load in between 200 and 240 AND rpm in between 4850 and 5150 and I get 3 rows
AFR's are 10.8, 10.9 and 11
If I setup a filter for load in between 180 and 220 AND rpm in between 6350 and 7150 and I get 9 rows
AFR's are 11.5 through to 11.9
So not sure what drugs maptracer is on
I setup a filter for load in between 200 and 240 AND rpm in between 4850 and 5150 and I get 3 rows
AFR's are 10.8, 10.9 and 11
If I setup a filter for load in between 180 and 220 AND rpm in between 6350 and 7150 and I get 9 rows
AFR's are 11.5 through to 11.9
So not sure what drugs maptracer is on
hmmm i'm not sure, maybe maptracer is messed up....
I wonder why it goes into the 10's like in between ~4600 to ~5200 where everything else around that is mid-high 11's.
Oh and when you do the filter for the 7000 area, make it go up to 7400 and see if that gives you anything.
What do you think is an acceptable difference in AFR's for back to back WOT pulls? 0.3? 0.5? It seems to be fluctuating a bit more than that for me, at certain points but at other points it's not fluctuating so much.
I wonder why it goes into the 10's like in between ~4600 to ~5200 where everything else around that is mid-high 11's.
Oh and when you do the filter for the 7000 area, make it go up to 7400 and see if that gives you anything.
What do you think is an acceptable difference in AFR's for back to back WOT pulls? 0.3? 0.5? It seems to be fluctuating a bit more than that for me, at certain points but at other points it's not fluctuating so much.
Update:
I've made 0 changes to the car and it is now in the 12's under WOT. It was in the mid/high 11's last night, as everyone can see in the logs I posted. So, why are they magically into the 12's now? It certainly is not the LTFT's because I added in the disable code.
I am really at a loss here and extremely frustrated....I really cannot think of anything else. Perhaps it is mechanical......
Tephra if you want I can go do a quick WOT pull or two and show you the difference....
I've made 0 changes to the car and it is now in the 12's under WOT. It was in the mid/high 11's last night, as everyone can see in the logs I posted. So, why are they magically into the 12's now? It certainly is not the LTFT's because I added in the disable code.
I am really at a loss here and extremely frustrated....I really cannot think of anything else. Perhaps it is mechanical......
Tephra if you want I can go do a quick WOT pull or two and show you the difference....
Okay, here are two WOT logs I just did. I'm surprised it didn't knock more than like 4 counts....it went into the high 12's both times.
http://phatlogic.com/Evo/Bandit09-Evom-logs5.zip
http://phatlogic.com/Evo/Bandit09-Evom-logs5.zip