Dynojet PCV 2 position map swtch: Useful or Sales Gimmick?

[ManaloEA]

For background, my 696 is my commuter vehicle. In one year, I put over 10k miles (mostly highway) on it. Recently, I had the ECU reflashed to try to smooth out the low RPM's a bit. Unfortunately when they flashed the ECU, my mileage plummeted from almost 50 mpg to 35 mpg. The mechanic keeps trying to sell me a dyno tune and just have one good map that will give me the mileage while keeping the grin factor. I am not sure that can be done (fun always comes at a cost of gas). So, my thinking is that I would like to have a PC-V where I can switch back and forth between a high-mileage commuting map and a fun for the weekend map.

Does anyone else do something like this with the PC-V?

[Raux]

From what I've read it's possible.

what in the world did they do to the ECU though? if they reflashed it i'm assuming they built a custom map? or did they put on the DP ecu and drop the O2 sensors?

That's a huge drop.

[ManaloEA]

I asked to remove the O2 sensors, not sure what kind of map they put on it. Pretty sure they did not build a custom map, probably just loaded a Rexxer pre-made map.

And yes, the drop in mileage is disappointing, especially since my riding is mostly tame commuting with no opportunities to really twist the throttle.

[Raux]

since the o2 is out.
you can skip the mech and get the PCV and Autotune and create two maps that way.
the 0 PCV map will basically keep the map you have now, and the Autotune can be finetuned as close to lean as possible for highmileage.

[Curmudgeon]

Just give Donnie a call late today, use my name, and give him the background info on your bike. Donnie does R&D for Dynojet and will level with you. He might be getting slower right now and may have time to help you with this too if you want to take the bike up there. He's 90+% likely to get it right the first time too.

[ManaloEA]

Thanks Curmudgeon. Hopefully dropping your name will not cause a dropped call...   
I might be able to schedule a day trip in the coming months and trailer the bike there.

Raux, can the PCV read what is currently in the ECU?

[Raux]

Thanks Curmudgeon. Hopefully dropping your name will not cause a dropped call...   
I might be able to schedule a day trip in the coming months and trailer the bike there.

Raux, can the PCV read what is currently in the ECU?

no, it just adjusts the fuel spray of the injectors + or - fuel.
if you get the autotune it automatically adjust the pcv map via wide band o2 sensors.

[Curmudgeon]

Thanks Curmudgeon. Hopefully dropping your name will not cause a dropped call...   
I might be able to schedule a day trip in the coming months and trailer the bike there.

Raux, can the PCV read what is currently in the ECU?

Try it; you'll like it, especially if Nathan answers the phone.

Like you, Donnie is an engineer by trade and training and is a man of few words..., and NO BS. You have to give him all the history up front though. Needless to say, he has all the hardware to do whatever you want. Nathan can order the necessary pieces.

[Speeddog]

IMO, the only thing the 'switching between 2 maps' feature is good for is evaluating map changes while riding.

I've not heard a convincing argument for having a 'fuel economy' map and a 'power' map.

Brad Black has done a lot of dyno tuning, he'd have some good input, I think.

[Raux]

I think it would be interesting to see a full 14.6 AFR map
vs
the power map that dips down into 13's and 12's

[ManaloEA]

I had read somewhere on the Internet at 14.2 was considered lean for E10 ethanol gas, and 12.6 is considered rich.

[ManaloEA]

Speeddog, when i calculate the difference in the cost of gas vs the miles that i put on, there would be approx $400.00 per year difference based on mpg variance. So something like the PCV would pay for itself if I could get the results i am looking for (at least in theory). If the bike was not my primary source of transportation, I would agree with you totally... Just trying to be money conscious.

[Raux]

14.08 is Stoic for E10 (true E10)

edit: a cool read
http://books.google.com/books?id=r4CcIjtDU5QC&pg=PA59&lpg=PA59&dq=what+is+the+stoic+afr+for+e10&source=bl&ots=gr-bAXyheq&sig=rRQhMpg0dhczZU4Cv4304on7FSU&hl=en&sa=X&ei=8AGRUK_0F5Ka8wSu1IGgBQ&ved=0CD0Q6AEwAw#v=onepage&q=what%20is%20the%20stoic%20afr%20for%20e10&f=false

[ManaloEA]

Thanks for the link. Interesting book, lots of information. Looks like I will be breaking out the credit card.

[Armor]

If your exhaust has removable baffles, you can have a map for each setup.