I've had a number of times where I've been logging data, and forgot to stop logging before shutting off the engine.

Since the instructions for the log tuner say that you need to stop logging before shutting down the engine, I've simply discarded the logs where I made this mistake. I'd like to think I've learned my lesson, but in reality I'm sure I'll do it again. And it sucks to have to toss a log that has good data in it.

But I looked at some of them in Excel. The logs where the engine was shut down before the log was stopped look the same as all the other logs, except the last few rows have zeros in columns where there would be data if the engine were running. It appears that a person could still use these logs if they just deleted all the rows that occur after shutdown... Has anyone tried this?

Art

 

Id like to see the log saved as a dif file so I can look and playback on the computer using Logworks 3

 

The rest of the data is accurate and usable. If you use the log it will process in PV tuner just like the others. Stopping the log before shutting off the bike just flushes all the data to the log and closes the file but I wouldn't throw the whole log away if I felt like it was a good run. I have done it and used the log.

 

I have forgotten to do this many times. I still use the log and have no problems with it as JD has stated.

 

Thank you for the help. I am still not sure about the spark knock. There is a spark knock advance and spark knock retard for front and rear.
Or is there a separate selection that is just "spark knock F" spark knock R" I need to go look again this is why I am making some trial runs so I am not making my tune worse. LOL Everything else for the most part as of right now I am comfortable with.

 

It will show in the log as Spark Knock F and Spock Knock R. I believe in the selection it says Front Spark Knock Retard and Rear etc. You are looking for where the bike retards the timing you have so PV tune can adjust the timing back in your calibration. Pick the Retard channels for logging

Spark Knock F = Front Spark Knock Retard
Spark Knock R = Rear Spark Knock Retard

 

I just thought of it, but I think M$ also has a free reader app for Excel files, called Excel Viewer.

 

Same here, never a problem.

 

Yes, MegaLogViewer is a very solid, feature loaded program and I've been using it for awhile now. Here is an example of one of the pages I have set up:

It's well worth the $25 Phil asks for it.

-Dusty

 

Knock retard or (KR) is the number of degrees the ECM is retarding your ignition timing in order to eliminate knock. There is a knock sensor mounted to each cylinder and when the sensor detects knock, it instructs the ECM to retard ignition timing to prevent knock.

If you are logging and you see no KR, then you can advance timing a little, then log again (especially log at Wide Open throttle or WOT). Keep advancing timing until you see some KR happening, then either back off the timing or add a few points of fuel to see if you can eliminate the KR.

The most power you will get is when you are running just on the edge of KR without actually seeing any in the logs. Quality of Fuel will play the biggest part in logging for KR because if your timing is advanced and you put in lower quality fuel, your knock sensors could go ballistic and you actually end up losing HP and performance bcause the ECM is compensating for the Knock by retarding your timing.