Power Vision Information Thread
Cruiser
Joined: Aug 2011
Posts: 229
Likes: 11
From: East Iowa
If you are getting requested changes of less than 5% you should be right there, the VE tables are not going to be necessarily smooth. In the end we are really looking for what the motor wants based on what the system is seeying. I have not received any recent emails or maps to take a look at, the last coorespondence is when I sent you a new map for your D&D 2/1 on Dec 5th. You can send your current map to jamie@fuelmotousa.com and I would be more than happy to review it
After going through all the trouble of doing autotune runs till your VE corrections are down to 5% or less, isn't the smoothing function kinda counter-productive?? Does it not screw up everything you just worked for??
Can a person really tell the rideability difference in a smoothed map??
Stellar HDF Member
Joined: Mar 2009
Posts: 2,454
Likes: 58
From: Graysville, AL
Got my map back from FM and before it looked like a bunch of sharp peaks and valleys. Now it looks like a plateau with some smooth waves in it. I'm gonna auto tune a few more times with this map and be done. Thanks FM!
Ultimate HDF Member
Joined: Dec 2010
Posts: 7,776
Likes: 2,252
From: wet coast BC
you do more auto tunes and guess what, the smoothing will be gone so be sure to save this map so you can re install later
Cruiser
Joined: Aug 2011
Posts: 229
Likes: 11
From: East Iowa
This is my point, the whole purpose of doing the the calibration in all the map cells, and one of the reasons for using EFI, is that there ARE indeed differences in the dynamics of the way the engine runs under various loads and rpms. If you're gonna go to the effort of doing the tune runs till you get the VEs down to the last couple percentage points, why would you then moosh them all back together again with smoothing??
Might as well just stick a carb back on it.
Ultimate HDF Member
Joined: Dec 2010
Posts: 7,776
Likes: 2,252
From: wet coast BC
This is my point, the whole purpose of doing the the calibration in all the map cells, and one of the reasons for using EFI, is that there ARE indeed differences in the dynamics of the way the engine runs under various loads and rpms. If you're gonna go to the effort of doing the tune runs till you get the VEs down to the last couple percentage points, why would you then moosh them all back together again with smoothing??
Might as well just stick a carb back on it.
Might as well just stick a carb back on it.
Stellar HDF Member
Joined: Mar 2009
Posts: 2,454
Likes: 58
From: Graysville, AL
smoothing adjusts the odd cell that did not get enough hits from the data runs
I was instructed by Jamie to do a few more auto tune runs with the smoothed map.
The most important aspect when you are smoothing is to have a good understanding on what the calibration/system is doing for a given area, and how adaptive control works vs the O2 integrator. When the ECM is doing business as normal and learning in closed loop it does not apply these learned fuel offsets at the same resolution as the VE table, it block learns over a cluster of cells, and on top of that the ECM interpolates lookup tables such as VE. So on one hand if you have a cell or even an area with extreme high or low numbers it is a good idea to try blending and smoothing along with the surrounding area and it may be more accurate, however on the other hand big peaks and valleys may simply be what the motor wants for a specific combination and that's how its gonna end up. In this respect there is really no right or wrong way, it simply comes down to which strategy allows the bike run at its best. Hope this info helps.
__________________
Jamie Long / Fuel Moto USA
The USA's Leader V-Twin EFI & Performance www.fuelmotousa.com
Contact 920-423-3309
Email jamie@fuelmotousa.com
Jamie Long / Fuel Moto USA
The USA's Leader V-Twin EFI & Performance www.fuelmotousa.com
Contact 920-423-3309
Email jamie@fuelmotousa.com
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Joe Kucinski
Outstanding HDF Member
Joined: Nov 2012
Posts: 2,291
Likes: 11
From: The Whale's Vagina
I purchased a CVO Breakout about a month ago and I want the best tune possible without going to the shop to pay dyno guy a bunch of $$, if a unit I can put in/use will do the job just as well (current set up will be entirely stock with some Rush 2" baffle slip ons, but will want to get Vance and Hines 2 into 1 big radius at some point). But that is the question of course. I had a PCV on my 05 Deluxe for 3 years and loved it-used the map put in by Fuel Moto and it seemed to run great (Jamie at Fuel Moto did say that the PCV unit probably wouldn't work for my Breakout due to the small amount of space under the seat, but my local Indy guy said he has installed many of them behind the rear fender). I like the idea of having a device that will allow me to adjust settings as I mod the bike. That being said, I don't understand anything about the "settings"- all those tables and values look like Japanese to me, I suppose I could learn, but I really don't want to if I don't have to. I just want a pre-made map installed and ride. So, my question is basically should I go with a Power Vision, PCV, or something else, trying to get the most bang for the buck at the same time? I do like the ability to gain an extra license to tune another bike- wouldn't mind adjusting my wife's just a bit (has screaming eagle slip ons and everything else is stock). Looking for any recommendations. Thanks.
I plan on more mods later on, so I may have to learn more, but for now with just my stage 1 upgrades, this thing is perfect for me. Good luck.
Tourer
Joined: Dec 2012
Posts: 393
Likes: 0
From: Northwest OH
When I recently download a new tune it asked me if I wanted to reset some specific tables I can't remember what but it gave me an option of yes or no does anyone have an answer that knows what I may be talking about.