Very cool story, sounds like Power Vision saved the day. Thank you for sharing!

 

Most of our calibrations for typical stage 1 combination run 38-42* @ light cruise, however we do have some cals we run as much as 45. In most cases from what we see on the dyno & testing the tip in response & torque starts falling off if timing falls below these ranges, however in tuning there are no absolutes; it comes down to giving the motor what it wants

 

Thanks Jamie for the helpful info and it's nice to have a range for that area outlined.

 

Hey everyone,
I have been cruising through this thread for a while now, looking at some of your logs and maps and such and thought I would ask fa quick question and see if I can get some feedback from you guys.

I have been playing around with my tune a little bit. I got a base map from fuelmoto or dynojet (can't remember which one) and ended up having more knock than I thought I should as well as a few other little things that needed working out. I was able to fix a low idle issue as well as essentially delete all knock off of the rear cylinder.

I am fairly new to bike tuning, and am trying to decide if pulling timing or adding timing creates more power. The tune I have now has had some timing added to it and it seems to be about the same knock wise as it was earilier. I am wanting to tune higher rpm and map kpa for power and keep my lower cruising rpm/map about where I have it set since there is not really knock at cruising speed. When I am roughly at 70-100% throttle position is when I see the knock and feel like its quite under powered.

lastly, I have been having a hard time viewing datalogs when I try to upload them onto my computer. I got a new laptop and installed winpv but when I try to upload a datalog it will not pull up. I don't know why. if anyone has a quick help guide on how to view datalogs that would be great to know as well. I spoke with bill at dynojet as he sent me a base map for some cams I am doing, and when I asked him about the datalog viewing he said he is in the process of writing a detailed tutorial or step by step to uploading datalogs. I just would like to be able to view them asap and would prefer not waiting for that to be put onto dynojets website.

thanks for keeping this thread going with great info.

-Aaron

 

welcome and a good topic that is always in need of more info/guidance.
If your bike is 2007-newer then a lot of that slowness you are feeling is due to the too tall belt pulleys (32 on the transmission and 66 on the wheel). adding cams will of course help since you are adding more raw power, but you won;t entirely get rid of the slog until you shorten up that final ratio up about 10%. or throw a lot more power at it like a 107 kit. doing the pulley swaps on my bike made a huge difference, no exaggeration.

as for data logging and timing, learning to use MLV is your best bet. using 'mytune' is second best bet- it actually does a decent job of showing where to trim timing. but you can trim too much and bike will feel slow. any performance tuned HD is going to ping a little bit in the logs- I don't worry about knock events the log 2.5 or under and with a knock count less than 2. most of the time knock events will be erroneous - again I only worry about it if I see the same exact events in every ride log- for example hitting high MAP between 3500-4500 rpm. If I keep seeing the exact same knock and counts in most every ride log then I will address it. I don't immediately chase it down unless I see it recur a few times in a few ride logs. Also too it is good to ride and tune specific areas at a time- go out and tune the off-idle area, and then roll-on from cruise portion, then lastly the WOT portion. each time you go out to log for tuning, ride focus on just that one area of and do short 10-20 min logs.

 

When you load a new map and have reset the adaptive values. Should you ride the bike awhile to let it learn before running auto tune? Or does it matter? Thanks.

 

You can go straight to Auto Tune, when you enter AT mode the adaptive values are reset either way.

 

Please tell us a bit more info about your bike as far as the year/model as well as any modifications you have. Also let us know specifically which tuning you are running and if possible post it. I would be happy to take a look.

 

Been so long since I ran auto tune I have forgotten how to use it. At the end of your tuning run do you stop the bike from running with the "run" switch and then exit and export? The youtube video from Dynojet leaves this step out and I dont remember what to do. First time I used it I lost everything. Thanks.

 

Auto Tune histogram data is stored every 30 seconds so you are ok either way you shut the bike down, if you use the main switch rather than the run switch the maximum amount of data that will be lost is only the last 30 secs of runtime