Scotty/Anyone:
Have started my VTuning sessions with the new Tru Duals, and rather than use the PZ176 map as you and Doc1 suggested, thought I'd try the PS176 with Constants corrected for CI just to satisfy my own curiosity. Here's the VTune Generated Corrections and Histogram from the 2nd. Vtune Data Recording (while riding). This was country riding with varying elevations, 2-up:
Even though I'm a long way from being finished with VTuning, I've made it a habit to take each successive VTune Generated map and treat it to blending the VE Table values. Then I ride the bike with this new map to see how the bike feels and responds to the updates. Also gives me a map to ride on while warming up the bike just before starting a VTune riding session. I do reset the AFVs before each VTune Recording!
I'm still confused about pages 48&49 of the latest HD Tuning Guide which instructs to "Only extend the row from the cell where the kPa is 80-85 kPa or above!" In the above VTune session, I view each hit of the Histogram and Data Recording looking for areas/cells that the MAPkPa was in this 80-85 kPa range. Of the over 10,000 hits, there were only 7 Cells that were 80-85kPa!!!! I did see few Cells where the MAP kPa was above 85kPa; but of couse the Guide reminds us that "VTune data is not good when the MAP is above 85 kPa."
Wondering if when you finalize a VTuned map, do you actually look for cells in this 80-85kPa range before using that VE Value for extending down/and to the right? Unless I'm way off base here, it seems a state-of-the-art Dyno with very controlled environment would be required to get all cells in that 80-85 range; if it's even entirely possible..........
Thanks for any input!
Scotty/Oz:
I realize that not all cells can be filled while riding..............hence the purpose of right/down extending the rows and columns with good hits. And this is what I've been doing per Doc1's last instructions.
And I understand, (I think.....) what Steve's saying with the info posted above. Seems strange though with getting "green" hits in cells but not extending them if the kPa is less or greater than 80-85kPa. Awful narrow range to work with considering the +10,000 hits I had above were form 30+kPa to above 85kPa! I had hits in 94 Cells, but only 7 were in the 80-85kPa range!
Don't know if the software was developing a "trend" but the only cells that saw 80-85kPa were:
10/1500, 25/2500, 25/2750, 30/3000, 30/3500, 40/4000, & 40/4500. So my point is there were some solid green cells other than these I've noted, but they were not in the 80-85kPa range! So are these "7" cells the only ones worthy of right extending? IMO, if I've got cells to the right in any row that produced "green" then I'm going to use those values for extending!
Probably not making a lot of sense here, but it's just the way I'm seeing it.
BTW: have 3 good VTunes under my belt now, and next up is to go after the Spark Tables. Did notice in Data Recording that there's an option to record Spark Data; but haven't seen it mentioned in any of the help files or Tuning Manuals. After having a close look at what Data it's gathering, me thinks it's dedicated strictly to recording info for optimizing the Spark Tables.
Sorry to rant on, but it's been a few days since I've had time to visit the Forum. Thanks to you both for your input!
Scotty or Oz is this normal in the VE tables from the original TTS upload file to the run files. The first image is the original file the XD171-002 the second image is my latest VE run do i need more VE runs?
59%
Scotty:
Yes, I see that relationship. And I have been blending as you said with the last number in the particular row.
Even though that last entry on the right might not be in the 80-85kPa range, I'm still using it for final blending.
Have completed 3 good VTunes, and even though I haven't filled all the cells that might be possible, I've got some great hits in the areas I normally ride in.
Went out this evening and did a Spark Data Recording and ended up with zero Knock Retard on the F&R cylinders though I did see 2deg at one point from the F cylinder. And this was with a 30 minute ride with good variation in the power band.
So now I've got to figure out the next step for throwing some timing at this thing!
Your replys are helping greatly!
I'll go back and review your and Oz's timing posts and get a feel for where to start.
Thanks!
