Power Vision Information Thread
#2231
04-15-2012 | 01:50 PM
Outstanding HDF Member
Joined: Aug 2009
Posts: 2,858
Likes: 217
From: Puyallup Wa.
I am going to try that will set up a CLI/Lambda
The VEs based off yesterdays 7 data logs no big surprises or big moves either way I made a tune and will continue with that today.
All the spark events are in the high RPM and KPA range I sure did not hear them. In fact if not for acting like a jackwagon on a closed course obviously
you could ride all day and not even be up in that range.
The VEs based off yesterdays 7 data logs no big surprises or big moves either way I made a tune and will continue with that today.
All the spark events are in the high RPM and KPA range I sure did not hear them. In fact if not for acting like a jackwagon on a closed course obviously
you could ride all day and not even be up in that range.
#2232
04-15-2012 | 05:50 PM
Like Heatwave said, you can make your gas-mileage calculations more accurate by using the Trip Center to change the Fuel Used and Distance Traveled parameters. It may take a few tankfuls but it'll zero-in on a reasonably accurate calculation in time. I find that my GPS, odometer, and Distance Traveled values vary somewhat, but I don't know why--and you'll never get the Fuel Used value perfect since you can't always fill the tank the same way every time. I wouldn't use the odometer to figure Distance Traveled, as it is usually not correct. Mine was 2% fast until I calibrated my speedometer, which was originally 4% fast, so now the odometer is 2% slow. That's okay since I'd rather have a correct speedometer than a spot-on odometer. I use the GPS for the correct distance per tankful, but like I said all of these values vary somewhat. I do assume the GPS is the most-accurate measurement of the three, however.
In the Trip Center click on the value itself, like where it shows Fuel Used and Distance Traveled, and it will give you a touch-pad to enter the values you actually realized. For example if it shows that you used 4.21 gal. of gas and you filled with 4.33 you would enter the latter value. From that it will calculate a correction factor that will keep it fairly close from then on. I don't change the MPG value, but rather only Fuel Used and Distance Traveled, which are the two parameters it uses to calculate MPG.
In the Trip Center click on the value itself, like where it shows Fuel Used and Distance Traveled, and it will give you a touch-pad to enter the values you actually realized. For example if it shows that you used 4.21 gal. of gas and you filled with 4.33 you would enter the latter value. From that it will calculate a correction factor that will keep it fairly close from then on. I don't change the MPG value, but rather only Fuel Used and Distance Traveled, which are the two parameters it uses to calculate MPG.
#2233
04-16-2012 | 02:33 AM
Road Master
Joined: Feb 2010
Posts: 1,232
Likes: 60
From: Albany, OR
I have recently started having a weird issue. During very gradual roll on acceleration the bike falls flat, like it's being held back. If I keep opening the throttle, I get past that and it opens up again. It is a very noticeable occurrence, and can be replicated. It is independent of speed or gear. It always seems to come on about 20-26% TP around 2250 rpm. Ran a log today and made sure to keep it in the hesitation zone to get a bunch of hits using AT100. I calculated the tune and looked at that area of the new settings. Detected AFR looked good, wasn't lean or too rich. Minor KR events in that area. VE's were also around 1% delta in that area. I am running +3 SA 2250-3000, 30-50kpa. Any ideas?
#2234
04-16-2012 | 08:13 AM
Member
Joined: Jul 2009
Posts: 4,310
Likes: 1,079
I have recently started having a weird issue. During very gradual roll on acceleration the bike falls flat, like it's being held back. If I keep opening the throttle, I get past that and it opens up again. It is a very noticeable occurrence, and can be replicated. It is independent of speed or gear. It always seems to come on about 20-26% TP around 2250 rpm. Ran a log today and made sure to keep it in the hesitation zone to get a bunch of hits using AT100. I calculated the tune and looked at that area of the new settings. Detected AFR looked good, wasn't lean or too rich. Minor KR events in that area. VE's were also around 1% delta in that area. I am running +3 SA 2250-3000, 30-50kpa. Any ideas?
I personallly think the cells in the region where you get the stumble are moving up & down too much. For example, on the front cyl at 25tp and 2250rpms you go from 92.3-93.4-90.0-72.6-79.9 and then at 30tp you go 94.7-92.1-83.7-80.8.
In fact much of your map jumps around far too much from my perspective. As a general rule the cells should gradually increase from left to right and from top to bottom in smooth graduations. This is only a general rule as it doesn't apply everywhere (such as in the very lowest TPs, above 4500 rpms and in the highest TPs) But in the region of the map you are getting stumbles, I believe its due to the lack of smooth transitions in the VE cells.
Try using the "smooth" function in small groupings of cell (12 or so) and see if that eliminates the stumble you're experiencing.
#2235
04-16-2012 | 10:10 AM
Stellar HDF Member
Joined: Sep 2007
Posts: 2,080
Likes: 383
From: Vancouver Island B.C.
I have recently started having a weird issue. During very gradual roll on acceleration the bike falls flat, like it's being held back. If I keep opening the throttle, I get past that and it opens up again. It is a very noticeable occurrence, and can be replicated. It is independent of speed or gear. It always seems to come on about 20-26% TP around 2250 rpm. Ran a log today and made sure to keep it in the hesitation zone to get a bunch of hits using AT100. I calculated the tune and looked at that area of the new settings. Detected AFR looked good, wasn't lean or too rich. Minor KR events in that area. VE's were also around 1% delta in that area. I am running +3 SA 2250-3000, 30-50kpa. Any ideas?
#2237
04-16-2012 | 06:36 PM
Advanced
Joined: May 2010
Posts: 73
Likes: 0
From: Alberta, Canada
You need to change the units default to Metric. Go to Settings then Units and then select Metric. Of course this will cange all your guages, etc, to metric units.
#2239
04-16-2012 | 10:01 PM
Stellar HDF Member
Joined: Sep 2007
Posts: 2,080
Likes: 383
From: Vancouver Island B.C.
This can be the confusing part as the afr and spark tables are kpa/rpm. The ve tables are tps/rpm. Chances are at 2500 rpm/30% tps you are going to be at 80 kpa or higher on the spark tables, right where there is knock retard activity. The reason for the drop in the afr on the wb sensor data is probably because not only does the ecm pull timing as a reaction to the knock event it will also add fuel regardless of what you ask for on the afr table.
#2240
04-17-2012 | 09:56 AM
Road Master
Joined: Feb 2010
Posts: 1,232
Likes: 60
From: Albany, OR
Guys, I compared my SA maps with what I have for the original HD tables. They are so different across the whole table, I'm not sure how it got that way. So I reset SA to factory. Then I smoothed out some of the rough transitions in the VEs. Loaded it up and went for a test run yesterday. The bog is gone. Logged WB AFRs look good for the cells I hit. Overall acceleration was better too. I think it was the SA more than anything. I will continue to monitor. Thanks for all the help.