Thats a great question, I have had thoughts of doing the same thing to my "07ae
Ordered PC V with autotune the other day. I will keep you posted as to how it turns out. Hope to have it installed for next weekend.
Installed the PC V yesterday. with the autotune add on box and O2 sensor. All connectors fit perfectly. Instructions are a little weak. But it is a real straight forward install. The PC V is a direct plug in to factory harness except for the ground wire to the battery. The auto tune is a piggyback module attached to the PC V by a CAN bus cable which is a plug in. The O2 sensor has six wires that are attached to the autotune module by means of set screws (all color coded).
Power supply for the autotune is attached to a switched 12v source at the blue wire for the taillights located behind the left side cover. The ground wire just goes to the chassis. I attached it to one of the 6mm bolts holding the rear fuel tank cross brace to the subframe. These two wires are the only ones that require cutting and splicing. This is because the autotune module is universal for all bikes. The only other fabrication I did was to build a small tab that I attached to one of the lower clutch cover bolts fof the purpose of securing the O2 sensor connector as it is quite large and I didn't want it just flopping around.
After the install of the hardware I loaded the supplied software into my laptop and connected it to the PC V by the supplied USB cable. With fingers crossed I started the bike. It started an ran just like perfectly. All power lights on as hoped. PC V and autotune communicating perfectly. (WOO HOO). I checked settings as per instructions and needed to enable the autotune feature by checking the enable autotune box on the screen. I let it warm up and reset the throttle position as per instructions. I do not at this time have any of the optional features hooked up. (such as speed or temp or a switch to turn on/off autotune. I may add these later, I don't know yet.
OK now for the test ride. The PC V came loaded with a map for a stock '09 model which should be reasonably close to my '08. As I rode around I was very happy with the performance. I tried to run it through all the gears and most of the throttle positions and as much of the rpms as I was able to give the autotune a chance to "see" as much of the map as possible. No I didn't get to redline in top gear yet. Rode for about an hour and during this time I could feel
the bike smoothing out and also got crisper throttle response. (big smile).
When I got home I hooked up the laptop and checked the autotune trim settings to see what adjustments it had made. Mostly it changed fueling in the range of 5-15 percent both adding and subtracting fuel as nec. with the exception of one block that it changed 21 percent. I then saved the trim settings and the map in the PC V was altered accordingly. Next time I ride the autotune should have less work to do. The autotune comes with a preset map in it requesting the PC V to maintain a fuel mixture of 13.2 to 13.6 the later used in the cruise range to maintain fuel economy. I may play with these settings later, we will see.
Over all I am very pleased with how well this thing is working. I didn't know what to expect as this was installed on an '08 intsead of the '09 like it was made for. I had previously been using a PCIII with a Wally's smoothness map for GenII and I thought it ran well. Th :assassin: is unit runs as smoothly but the power and response is better than before. Both units are far better than the stock Yamaha tuning. I would have sold the bike if these units were not available.
Well that's about it. I give it two big thumbs up! and it will probably get even better as I put more miles on it. :clapping:
