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At a glance the VEs look very similar to the fuel moto tune I have. I did not notice it on this ride but have had some weird idle issues. I not in the log I found idle spots of around 970 for steady amount of time. I also see where it idles at exactly 1000. Is that a normal observation?
What exactly are the "weird idle issues"? If you see 1000 rpm on your tach and the log files show 970, I would say this is normal, as my tach and ECM tach don't exactly jibe either. At a typical 952 rpm idle speed in the ECM the analog gauge shows around 875-900 on my bike. My speedo doesn't match up with VSS either, but I'm resigned to these little anomalies since they don't seem to cause any problems.

The main weird idle issue seems to be gone. I think it was the cable going to manifold rubbing a hole in outer cover. Since I have ty wrap that cable back out of the way no more major issues.
My tach will read 1000 sitting at idle and at other times under 1000. I also see exactly that in the data logs. I am no way naive enough to think my tach is exactly right. I am ok with that. I think what I am asking if its a normal observation for example pull up to stop light and bike seems to hunt around for a second to find idle? Before it was almost dying when hunting idle and I called it "weird idle issue" has not done that since tying up cable. But I do notice it "hunts" idle a little bit. The way it acts on last couple of runs is ok and not a super big deal for me. I can see a couple spots in data log where it dipped to the 950-960 rpm and then settle in at 1000. I acknowledge I am just over analyzing.

 

I did a log run with the AE and DE zeroed out.....didnt seem to hurt anything in the way it ran.....I was suprised. I also dropped the idle down to 900 for the run to see if it would make any changes down there.....it didnt. Only changes I got were some timing in the rear cylinder.....it was hotter than blazes here today and I was doing som 5th and 6th gear WOT roll ons and I had some pinging.
Ive been tweaking on Jamies original map he gave me for my setup

2011 Limited
Ness Big Sucker
Woods 555
Rinehart Classic True Duals
Power Vision

Its been pretty much right on....first few log runs made small changes in VE F&R and a some timing......havent been able to make anything change for awhile since except some timing issues like today...and I figure that was just the heat. This is with the stock O2's..dont know if I wanna pop for the wideband just to see if theres a little more there. I figure I can spend those $$ on something else.

I do have something wacky with my idle though since we're talking about it....when its first warming up and the idle starts to come down I take off.....get down to the corner ,about 6 blocks, and stop and its idling at about 1500 then will slowly go back down then it will be normal the rest of the day. The idle RPM table isnt wacky so I m lost but used to it as it only happens once a day so Im used to it and it doesnt bother me. Just weird..

 

Mine doesn't run in closed-loop, and I'm tuning with the AT-100 Pro. AE is one of the parameters required for datalogging, so I assumed PV Tune was compensating for the fuel added. AE would be activated in the opposite direction, on decel, and I can't see how that would impact the tune much. I'm just trying to find excuses to deactivate neither, as I would like to be able to pull a datalog at any time while riding without having to make any changes in the tune first.

 

As weird as it sounds the stock air cleaner cover keeps the motor cooler than an open one. At least on my bike. It sucks heat off the cooling fins a draws air over them, the open air breather draws cool air into the motor but heat builds faster because the air cleaner is no longer drawing air over the cooling fins. It's exactly the opposite of what I expected.

 

The PV will continue to record single/multiple logs until the internal memory is full, which if I recall correctly is about 400 minutes @ .5MB a minute. FYI - Excel 2000/2003 has a limit of 65,536 rows. That issue was fixed in Excel 2007 and up Bob.


Yep, that's exactly how I do it...after I try adding a little fuel first.

-Dusty (aka Hal)

 

Sounds like your tune is getting close. As far the idle, what you are describing sounds normal and is controlled by the Idle RPM table. 1500 sounds a little high but the stock RPM table for my bike keeps the idle around 1400 until the engine reaches 90 degrees and then goes down from there as the bike warms up. Once the bike reaches normally operating temp, it should settle down to whatever you have it set to.

 

You are exactly right. I have tried it and found that the original map I got from FuelMoto was very close. Anytime you advance the timing you risk detonation so do this carefully. As Dusty/Hal mentioned, it would be good to add fuel when advancing timing. If you are running closed-loop (14.6/1.00), I would set the AFR richer to something like 13.8 or even 13.0 to do the spark tuning. My initial tuning only made minor decreases to the original timing from Jamie. After testing as you described, I went back to what Jamie sent with the minor changes tuning made. I could tell they did a good job on setting the timing.

 

I have three tunes loaded on my Power Vision module. How do I tell which one is currently running on the bike? Is there a particular screen to view that tells what tune is on the bike?

Michael

 

OK, this may be a dumb question, but I logged two more files last night (NB) and plugged the values into the log tuner and it still continues to decrease the front and rear VE values considerably for the map that Jamie sent me (especially in the 0-2% throttle areas). I haven't disabled the AE or DE, but each time I log and adjust, it seems the VE's get reduced in the leftmost side of the table. Also, the only changes the log tuner seems to update are F&R VE, I'm not seeing any spark changes.

How does the log tuner actually calculate the changes?

Every time I update a tune and go for a test ride, I have good power, but my ET according to the PV continue to climb with each ride. Jamie's tune at cruise gets me between 370-380 degrees as indicated, I have seen as high as 392 degrees (as I keep lowering VE values based on the log tuner calcs), but my oil temps have not exceeded 240 (analog dipstick gauge)

Does this seem normal? I have an 09 Nightster with V&H 2-1 and a Heavy Breather. I'd be glad to email my map from Jamie, as the site won't let me upload the .pvt file type.

I'm just confused about the log tuner process, because the FM map has AFR (Stoich) set from 13.0 through 14.6 depending on the cell, but the log tuner has a setting of 14.6 with a max temp of 288, which I exceed regularly.

I appreciate any insight - I don't want to burn down my bike, and I want to understand how the tuner works.

 

It would seem that increasing fuel would introduce a false environment from which to tune spark advance. I know my advance settings in the cruise range are very close, so it would seem that adding 2° across-the-board couldn't hurt anything, and the spark-knock feature would easily be able to handle that. Later, after running PV Tune, the areas that realize detonation would be retarded appropriately by the program. I could see how increasing by a more radical amount, like 5° at one time, might be overdoing it.

I also think that using this method would dial it in for the tank of gas you currently have, and that this would vary with the relative octane of what you are running at any given time.

It's too bad Delphi couldn't have also developed a system that works in reverse of the spark-knock feature, which would be to incrementally advance spark on-the-fly until detonation occurs, which would keep you optimal at all times. But that's neither here nor there.