583CE Cam install - Breaking up in Mid Power range
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6th Gear
Joined: Oct 2021
Posts: 11
Likes: 2
From: de
My bad. Let me delete the other one. Will check tonight. Did it when the bike was cold and after reading the manual, I didn't do it correctly. What would be considered high compression? Mine is a 96CC
Stellar HDF Member
Joined: Mar 2012
Posts: 2,019
Likes: 599
From: Columbus, OH
Were you ever able to log data? If so what format is the log in? How are you reviewing the log? Spread sheet, graph.........????
Are there knock events?
Where is the read AFR compared to the commanded AFR?
Looking at these things will tell you where your issues are and where your map needs adjusted
When I review a log file I look at one thing at a time, I'll look at what I'm reading for AFR compared to where I want to be, I look at MAP, RPM and TPS where I have an issue. First I look at the VE tables, it's not possible to hit every cell in an auto-tune mode, so sometimes the cells around your problem spot may have changed and you have a few cell that didn't. I adjust those cells manually close to where the others are at, go back out and ride out of auto tune mode and log again, see if the issue improves. Make sure you're logging out of auto-tune mode
Are there knock events?
Where is the read AFR compared to the commanded AFR?
Looking at these things will tell you where your issues are and where your map needs adjusted
When I review a log file I look at one thing at a time, I'll look at what I'm reading for AFR compared to where I want to be, I look at MAP, RPM and TPS where I have an issue. First I look at the VE tables, it's not possible to hit every cell in an auto-tune mode, so sometimes the cells around your problem spot may have changed and you have a few cell that didn't. I adjust those cells manually close to where the others are at, go back out and ride out of auto tune mode and log again, see if the issue improves. Make sure you're logging out of auto-tune mode
Last edited by Fat11Lo; Oct 29, 2021 at 07:32 AM.
Thread Starter
|
6th Gear
Joined: Oct 2021
Posts: 11
Likes: 2
From: de
Were you ever able to log data? If so what format is the log in? How are you reviewing the log? Spread sheet, graph.........????
Are there knock events?
Where is the read AFR compared to the commanded AFR?
Looking at these things will tell you where your issues are and where your map needs adjusted
When I review a log file I look at one thing at a time, I'll look at what I'm reading for AFR compared to where I want to be, I look at MAP, RPM and TPS where I have an issue. First I look at the VE tables, it's not possible to hit every cell in an auto-tune mode, so sometimes the cells around your problem spot may have changed and you have a few cell that didn't. I adjust those cells manually close to where the others are at, go back out and ride out of auto tune mode and log again, see if the issue improves. Make sure you're logging out of auto-tune mode
Are there knock events?
Where is the read AFR compared to the commanded AFR?
Looking at these things will tell you where your issues are and where your map needs adjusted
When I review a log file I look at one thing at a time, I'll look at what I'm reading for AFR compared to where I want to be, I look at MAP, RPM and TPS where I have an issue. First I look at the VE tables, it's not possible to hit every cell in an auto-tune mode, so sometimes the cells around your problem spot may have changed and you have a few cell that didn't. I adjust those cells manually close to where the others are at, go back out and ride out of auto tune mode and log again, see if the issue improves. Make sure you're logging out of auto-tune mode
But if I am understanding correctly, just take the amounts in the green cells around these areas and fill in the yellow and reds to match.
Stellar HDF Member
Joined: Mar 2012
Posts: 2,019
Likes: 599
From: Columbus, OH
Lets forget about spark right now and just work on getting the fuel right
you're in a learning position right now meaning you need to learn what the bike wants, the tuning device is the bikes way of communicating that to you
first another question: does the software let you adjust the displacement of the engine? if so try bumping at about 10 cubic inches, you don't want to get this too far out off but see in your VE table where your hitting 127.5 ? don't know about VH but that is the max value for learned VE in other software
second look in your rear cylinder VE table at the 3500 rpm row, see where they have a dramatically lower value then the cells above and below them, manually adjust those cells closer to the cells around them. look at the 10% TPS column, see where you have 107.5 at 2750 RPM and then 97 at 3000, 88 at 3500 and then back up to 106.5 at 4000? adjust the 3000 and 3500 cells to 107 to "smooth" the bridge between those areas, the next column 15% TPS you have 116.5 at 3000 the 110.5 at 4000, adjust the 3500 RPM cell to 113.5, do this for that whole area, blend the values in so there is no more than 2-3 points or so difference between those cells. Look for holes like these in your VE tables and manually fix them. Take it out and ride it without auto-tune enabled and see if your problem areas improve. The most basic way to look at VE is, it's the multiplier for calculating fuel, ECM looks at RPM, TPS and uses that value and the value in your AFR to figure out how long to pulse the injector to get the desired AFR, the O2 sensors verify this.
Very first step in tuning is getting your VE tables dialed in, after this is set then you can move on to addressing fuel ratios and spark tables
Thread Starter
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6th Gear
Joined: Oct 2021
Posts: 11
Likes: 2
From: de
So first and foremost i would like to Thank you for taking the time to help me through this. I was waiting for your reply all morning after I read a 200 page book on engine management systems last night. So because i was impatient, smh lol, I blended the values looking at the curves more towards the green areas and adjusting them accordingly. Fired the bike up and did a test run with autotune disengaged. 100 times better!!!! So i did about 3 auto tune sessions today. My question now is, do I continue going through autotune procedures or take it back to where it was and do what you suggested? Not sure if i can bump up the engine size but will look. I will finish the autotune and post the newest results on the front and rear ve as they are now. Also, after all my research, think i should have went with the ThunderMax ECU upgrade. LOL
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