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Iron Butt
Posts: 802
| I installed a Power Commander V when I first got my bike and had it dyno tuned. It ran really great but soon after I decided to add a Ness Super Sucker. The choice was to either have the tuner tweek it again or try one of the maps downloaded off of the PC site for my application. I tried the PC map and it gave more power but also some surging at light throttle and even stalled a couple of times when taking off from a light. I figured I'd get the Autotune add-on since I am also scheduled for a set of Kevinx installed cams. Autotune consists of a control module for each cylinder connected in tandem that attach to the Power Commander, two wide band O2 sensors plus the wiring harnesses. Basically PC supplies a suggested table of Air/Fuel ratios (AFR) for the full range of throttle openings and engine RPM. Autotune continuously monitors the mixture via the O2 sensors and applies adjustments to the individual fuel maps in order to maintain the prescribed AFR. It also gives you the possibility to tweek the ignition timing throughout the range. Yesterday I hooked up the Autotune which was pretty straightforward. I ran into one self-imposed glitch but one call to Power Commander had a tech looking at my system through my computer where he quickly located the oversight. Today I rode it about 250 miles in a combination of freeway, mountain and stop and go traffic. The difference is absolutely amazing. Autotune has been trimming away all day and by the time I got home the motor was running as smooth as silk and the strongest yet. I checked the trim tables and they made changes all over the range. There is even a marked difference between the adjustments made to the front and rear cylinders. I accepted the trims which incorporates the adjustments permanently into the individual tables and clears the trims so it can continue further trimming. This process will go on until the trims become very minor. The Autotune cost $299 which is about the cost of a dyno tune but gives the system the ability to fine tune continuously as well as compensating when new components are added. I sure wish I had tried this on my previous Harley. Could have saved a bunch of money. Marc
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Iron Butt
Posts: 619
Southeast Iowa | Great info. I never really understood how the auto tune interacted with the PCV before. Sounds like an effective set-up. |
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Visionary
Posts: 3773
Pittsburgh, PA | I have the PCv and love it! After reading your review o might get the auto tuner as well. |
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Tourer
Posts: 523
seattle, wa | Thanks for the info. I am going to look into the PCv. |
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Iron Butt
Posts: 802
| BTW, here is a link to where I bought mine. They have discounted prices and excellent support. Marc
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Tourer
Posts: 446
East TN | Has it done anything to help with the backfiring??? |
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Iron Butt
Posts: 802
| I didn't really notice. I ride with ear plugs so I can't hear it anyway. I'll make a point of paying attention next ride.
Marc |
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Iron Butt
Posts: 1117
Northeast Ohio | Arkainzeye, what year is your bike? 2008? If so, what PC 5 part number did you get? |
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Tourer
Posts: 411
Dallas, Texas | Do these work for the 2008? |
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Iron Butt
Posts: 802
| joe schmoe - 2010-05-17 8:36 AM Has it done anything to help with the backfiring??? I just took a ride without ear plugs and.. surprise! Not one backfire! Marc
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Iron Butt
Posts: 802
| iluvink - 2010-05-17 11:32 AM Do these work for the 2008? I believe they do but I would call Power Commander and ask to be sure. 800-992-4993. Marc
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Visionary
Posts: 3773
Pittsburgh, PA | ScoreBo - 2010-05-17 12:24 PM
Arkainzeye, what year is your bike? 2008? If so, what PC 5 part number did you get?
Yep, mine is a 2008 model. Had no issues at all.. plug and play. |
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Iron Butt
Posts: 1117
Northeast Ohio | Do you know which one you got? I thought I read that us 2008 Vision riders needed the one for the Hammer. |
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Visionary
Posts: 3773
Pittsburgh, PA | ScoreBo - 2010-05-17 7:17 PM
Do you know which one you got? I thought I read that us 2008 Vision riders needed the one for the Hammer.
i have the one listed for the 2009-2010 vision.
came with install instructions for the vision as well.
Edited by Arkainzeye 2010-05-17 9:10 PM
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Tourer
Posts: 311
Atlanta Area | Marc, just spoke with Dynojet because I'm interested in going this route with my new Vision. I had the old VFC cam setup on my 08. Can you please confirm the following? Dynojet stated that there is a built in Rev Extend that will extend the rpms +500 from stock. Autotune only adjusts fuel mapping and has no effect on timing. Timing can be adjusted on the base map the traditional way with the tables. (edit: just spoke with Kevin who is going to contact Lloyd to see about a PC-V map for the VM1s) Dynojet also stated that the default autotune setting of +/-20% can be upped to 50%
Edited by 1atom12 2010-05-18 10:28 AM
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Iron Butt
Posts: 802
| I can confirm all except rev extender. I haven't tried that and probably won't. I don't like to rev it that high. They put a suggested max of 20% adjustment without accepting the trims in case something goes wrong. That way it won't adjust so far that it wouldn't run well enoguh to get you home. I left the 20% in place.
Marc |
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Iron Butt
Posts: 1117
Northeast Ohio | Marc, Did the autotune module require any splicing or did it just plug into the unit? I read on another site that the AT-100 has a Harley power connector and was easy to splice in. |
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Iron Butt
Posts: 802
| Yep, plug and play except for the power cord. I just snipped the wires from the Harley plug and ran the black to a ground and the red to my heated liner control which is already tapped into a hot wire. There are lots of switched +12V wires available so no issue.
Marc |
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Tourer
Posts: 311
Atlanta Area | Marc, questions about auto-tune. Do you leave your bike in auto-tune all the time or did you install the switch? Is it ok to run in auto-tune all the time? Any advantage to installing the switch to allow going back to just the base map? |
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Iron Butt
Posts: 802
| I leave mine in Autotune mode all the time. I don't know what the advantage would be to switch back to the base map. Maybe someone else might have an idea. The concept is to leave Autotune on all the time. The more it operates the closer the map gets to the recommended AFRs. Every once in a while you need to accept the trims it has made and then it continues trimming all over again. Eventually the trims get to be very small as it gets closer and closer to optimum running. That's where mine seems to be now. I checked it again yesterday and the trims were in the single digits. I'm getting cams in a few weeks and then it will start trimming all over again as it adjusts to the new setup. Pretty trick 
Marc |
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Tourer
Posts: 311
Atlanta Area | Good news. Kevin will have plenty of practice with the auto tune and cams because he is doing mine and Webhair's bike on the 15th... |
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Iron Butt
Posts: 669
Peachtree City, GA | I am looking for to this upgrade... |
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Iron Butt
Posts: 810
| Any updates on the Power Commander V and Autotune. Mine has been running very poorly in cold weather. Thanks, Tim
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Cruiser
Posts: 62
ESCALON CA. | TimS, your post lists vfc3, did you change? |
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Visionary
Posts: 3773
Pittsburgh, PA | TimS - 2010-06-14 12:21 AM
Any updates on the Power Commander V and Autotune.? Mine has been running very poorly in cold weather. Thanks, Tim
cold?! how "COLD" does it get in Southen CA? lol |
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Power Commander V and Autotune
