Power Vision Information Thread
Outstanding HDF Member
Joined: Aug 2009
Posts: 2,858
Likes: 217
From: Puyallup Wa.
I am more of a heatwaves map rider. Thanks for posting fuel maps I would like to see heatwaves map in Lambda I know he has the box checked to show afr. But you can show a afr of 14.4 but that could be a lambda of .977 to .982?
Road Warrior
Joined: Jan 2008
Posts: 1,549
Likes: 18
From: Upstate SC
As Iclick mentioned, my bike and Heatwave's bike are TBW while Iclick's is not. The calibrations are built on different strategies. They cover the same ranges but are just broken up differently. Don't get hung up on the different columns but you can use them for comparison.
Road Warrior
Joined: Jan 2008
Posts: 1,549
Likes: 18
From: Upstate SC
Guys. Try a tuning trick.
First, change the vast majority of your AFR table to 14.6 and do a data log.
Using MegaLogViewer HD to plot VE Front and VE New Front and in the third box pick RPM.
Do you get a straight line or is it a real fuzzy line? If you are getting close on the VEs, you will get a straight line. Similar to when in open loop, plotting MAP and INJ PW F and RPM in the third box.
Way cool stuff.
Beast
First, change the vast majority of your AFR table to 14.6 and do a data log.
Using MegaLogViewer HD to plot VE Front and VE New Front and in the third box pick RPM.
Do you get a straight line or is it a real fuzzy line? If you are getting close on the VEs, you will get a straight line. Similar to when in open loop, plotting MAP and INJ PW F and RPM in the third box.
Way cool stuff.
Beast
Road Warrior
Joined: Jan 2008
Posts: 1,549
Likes: 18
From: Upstate SC
Yes, it does have the ability to turn on and off Closed loop under limit and switches.
Cruiser
Joined: May 2011
Posts: 142
Likes: 0
From: Central Pa
In a previous post I asked about changing the entire AFR table to 14.6 for tuning runs, but was cautioned about doing that in the higher RPM/MAP areas without adjusting the spark advance to avoid possible engine damage. Does this only apply to the upper ranges or does it also apply to lower ranges? IE, if I decide to change (in the future) to open loop in the cruise range should I be concerned with spark advance...or any other items?
Dennis or Whittlebeast, do I need the registered copy of megalogviewer to get graphs like Dennis posted? I downloaded the trial version but can't seem the figure out how to get it to plot like the one posted.
Dennis or Whittlebeast, do I need the registered copy of megalogviewer to get graphs like Dennis posted? I downloaded the trial version but can't seem the figure out how to get it to plot like the one posted.
Member
Joined: Jul 2009
Posts: 4,310
Likes: 1,079
Are these graphs generated with the Megalogviewer on a bike with WB O2 sensors, AT-100 and PV? I assume this type of data cannot be generated with the NB O2 sensors...is that correct?
HD Forum Stories
The Best of Harley-Davidson for Lifelong Riders
7 Surprising Harley-Davidson Products that Are Not Motorcycles
Verdad Gallardo
8 Best Harley-Davidson Motorcycles Ever
Pouria Savadkouei
10 Worst Harley-Davidson Motorcycles Ever
Pouria Savadkouei
Killer Custom's Jail Break Is The Breakout That Refused to Blend In
Verdad Gallardo
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?
Verdad Gallardo
Harley-Davidson Reveals Super Cool Cafe Racer Concept
Verdad Gallardo
Engraved Rebellion: Inside Bundnerbike's Glam Rock II
Verdad Gallardo
10 Motorcycles You Should Never Buy
Joe Kucinski
10 Things Harley-Davidson Needs to Fix in 2026
Verdad Gallardo
Road Master
Joined: Mar 2007
Posts: 1,177
Likes: 23
Do you have the version from this site? A normal Google search most likely gets the Megasquirt version.
http://www.efianalytics.com/MegaLogViewerHD/download/
http://www.efianalytics.com/MegaLogViewerHD/download/
Road Warrior
Joined: Jan 2008
Posts: 1,549
Likes: 18
From: Upstate SC
In a previous post I asked about changing the entire AFR table to 14.6 for tuning runs, but was cautioned about doing that in the higher RPM/MAP areas without adjusting the spark advance to avoid possible engine damage. Does this only apply to the upper ranges or does it also apply to lower ranges? IE, if I decide to change (in the future) to open loop in the cruise range should I be concerned with spark advance...or any other items?
If you decide to go to open loop, you will be going richer and would not have to be concerned with the spark advance.
I used the unregistered version, just open your log, click the scatter graph tabs and select the 3 data signals to plot.