Ok.....so on Sunday I did my first auto tune. Saved it and have a question. Can I build onto that same map? If so, how do you do that?

I assume I would pull that map up and continue the process? Don't want to erase it accidentally......

 

Yes, when you save it into one of the slots, you can choose it again next time

 

Go to Dynojet.com videos section and watch Advanced Autotune Video for the Power Vision

 

Yes you build onto that same map. But, Auto tune is not perfict, you can get a bad session. So, you started with the base map and did an auto tune off of it. You should have saved that auto tune session to a new slot so you did not overwrite your base map. your next auto tune will be run off the last auto tune session and you should save it to a new slot and run it for a day to see if you like it, then run another off that one and save it to a new slot and repeat. Three 20 min sessions should be good if your base map was close to start with.
Example: If my base map was loaded into slot #1, I run an auto tune off slot #1 and save it to slot #2, if the bike runs better I would run auto tune off #2 and save it to #3 slot. but if the bike ran worse, I can discard that #3 tune and go back to the previous. thats why its best to pick the next slot to save in, otherwise you have to start all over should you get a bad result. hope this helps.

 

Just curious.


Are you tuning with wide ban or the factory narrow ban 02 sensors?


Are you tuning on a basic MAP from the website, a MAP from a dyno session, or a custom MAP installed by the company you purchased the PV from?.....Cliff

 

Thanks guys, appreciate all......


Purchased from fuel moto. Narrow band.They supply base map and subsequently all future base maps via email. Then run an auto tune to clean things up.

 

I did as was said. On my second auto tune......but still a little hotter on the legs than I like.
What's best. Can I just fatten it up in a few cells? I don't have a darn lap top and only have had my fuel moto pV couple weeks. Worked well climbing MT WASHINGTON

 

"Purchased from fuel moto. Narrow band.They supply base map and subsequently all future base maps via email. Then run an auto tune to clean things up."


I did the same thing for my 2012 Ultra Limited. It had the V & H head pipes, and Rhinehart slip-ons and SE air cleaner, otherwise stock.


It's a somewhat long story, but may be worth the read. I purchased the bike new in 2012 coming off a very strong running 2003 Road King, still 88ci, but had cams, minor head work, intake and exhaust mods. Right from the start I thought the 2012 Limited was a "turd" for power production, and excessive fuel consumption for what it was doing. It also "cooked" by right leg, so almost immediately the CAT had to be gutted out, later to be replaced with an "X" pipe.


So basically I started out with slip-ons, then SE air cleaner, "gutted" the CAT out of it and added a PC-5 tuner. Ran every possible MAP that was even close, and custom tuned them to the brink of extinction, and was never completely happy with the results. It still used too much fuel and down on power some. I'd add here that I know my was around high performance stuff just a bit, I drag race a street driven car, and own my own business dedicated to high performance vehicles. We specialize in FAST Class, Stock, Super Stock, and Stock Appearing musclecars, building carburetors, distributors, transmissions and engines for them.


For the 2012 Ultra Limited, I added the X pipe and PV tuner last, got it from Fuel Moto, and their MAP was really good for power production, but still using too much fuel for my liking. Best case scenario I'd get about 38-39mpg's.


What was kicking my butt is that my friend would ride his 2012 CVO Ultra the same distance and get low to mid 40mpg's doing the same thing my 103 was doing.


Anyhow, you've got to set a goal for these things, and mine was to get improved fuel economy and to be at a minimum on par with the CVO bike for fuel consumption. I started data-logging with the PV tuner, and was very careful to keep throttle angle under about 30 percent and rpms below 3000 or so. So I was only trying to tune the "normal" driving range, as I was completely happy with the Fuel Moto Map otherwise.

I did this for quite a few sessions, saving several MAPS that I was writing over and putting them into slots 4, 5 and 6 on the PV tuner. I ran no less than 3 data logging sessions on each of those, in various weather and driving conditions, but still staying low on the throttle and low with the rpms so I was only tuning the low end of the MAP.


After doing all that and having a couple of MAPS to play with, I started manually adding timing and fuel to them to see if I could make any improvements anyplace. I spent several weeks doing all of this, and was pretty happy with the results.


The big day of testing came on a ride up to New York on a trip with my friend on his CVO bike. We logged the same exact route, same basic driving style, mixed some secondary roads with couple of hundred freeway miles, and filled up at the same stations along the way.


When the smoke cleared and dust settled, I was getting almost EXACTLY the same fuel economy as he was at every fill-up, so good news there. Power was WAY up from any other tuning efforts with the bike.


The final tune I ended up using was one that I had data-logged on about 3 times, then added just a touch more fuel to the upper end and a couple degrees additional timing.


Even after all this, I still thought the big 103 engine was somewhat of a "turd" for power production, even though it was at least 300 percent better than when it left the showroom. I personally feel that the emission cams they used in those engines severely limit the potential of the engine, especially since I had opened up airflow potential on both intake and exhaust, so basically no emissions stuff left anyplace.


I found the power curve on the 2012 103 to be "flat", and somewhat "boring". It pulled OK everyplace when I was done tuning it, but no real "rush" of power anyplace. You could shift it at 3500, 4000, 4500 or even 5000rpms on a hard run and the bikes acceleration rate was about the same. I did quit a few hard runs against my friends CVO Ultra, with the same exact result every time no matter what shift point I'd use. He'd put about 4-5 bikes on my thru the first 3 gears then steadily increase that lead out to about 100mph, where my bike hit a "brick wall" and his CVO bike kept on pulling.


I was still pretty happy with being able to stay on his heels out to 100mph, being down on CID and crappy emission cams, etc.


The story ends right after all that work, as I decided to sell the bike and go back to a Road King. I located a MINT condition 2002 CVO Road King with 6000 miles on it, some really nice upgrades, went that direction, and never looked back.


I don't miss the Ultra Limited, and like having a removable windshield, and another 40hp or so on tap (my Road King is 103ci, CNC ported SE heads, high compression, big cams, and 2 into 1 exhaust, backed by a Baker 6 speed, all done by Nick Trask).


I'll also add here that the Road King gets better fuel economy than the finely tuned 2012 Ultra Limited, even after all the upgrades and custom tuning. This leads me back to the limiting potential of that engine with the stock cams in it. I was even told by Fuel Moto before I started any of this that I'd hit a "brick wall" with that engine unless I went to better cams in it.


Sorry for all the rambling, but I hope the information helps some.......Cliff

 

While some don't care about fuel mileage, they seem to lose track of the motors efficiency to burn fuel. Kind of a big deal. Like you, I need to know I'm dialed in and getting the most out of whatever it is I'm working on, to the best of my ability.

Perseverance will pay off! Nice work!

My bike stock was recording 200miles b4 fuel lite would come on. Installed an open a/c and slip ons, now the lite would come on at 180miles. Hmmm. Kinda tells you something????
Installed a PV tuner and was rewarded with a brand new bike. Back to 200miles on lite, idled cleaner and new found power. Real happy!
Never played with auto tune until cam install last week. Fuel moto map was probably 90% or better. But after an auto tune, I now completely understand there's more to give.

I'll start my second auto tune today and go from there. Quick look at current fuel mileage is 42mpg. So don't believe I'm too far off.

I use fuel mileage as an indicator of how things are running, maybe I shouldn't, but don't know another way.

 

Forgive me guys, last one?

Base map from fuel moto done!

Auto tune session done!

If the PV only makes necessary adjustments. Why would I not save it to the first auto tune session. Why have three separate saves? Doesnt make sense?