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

[Raux]

The autotune another option. However, does it give the user the type of control over the AFR as being described in this thread? Lean or stoic while cruising, moving toward rich at 60%+ throttle? Or does it assume that the user only wants max power at all times? I am asking because I don't know...

since you have no o2 sensors with your ecu
you will have complete control of the afr table with the autotune

[DucNaked]

since you have no o2 sensors with your ecu
you will have complete control of the afr table with the autotune

^
this

[brad black]

the autotune has a table with the same rpm and throttle opening breakpoints as the pcv fuel map.  at each of those points you can set the desired air/fuel ratio.  some may run a blanket 13.2 or so, which will make the bike run nicely, but you can take it back to 14.2 or even leaner at low throttle openings (especially if doing both cylinders individually) and it'll be fine.  and there's around 10% difference, which can mean a similar increase in fuel economy when cruising sort of thing.

i generally run them at 12.8 at wot and taper back to 14.2 or so from there.  but if you start at 13.2 across the whole lot you then have a starting point.  it's about procedure as much as numbers.

[ManaloEA]

Thanks Brad, especially for confirming the numbers that I suspected would be good numbers. I notice that you change the AFR based on throttle position. Would you ever change the AFR based on RPM or gear position?

[ManaloEA]

Question for the forum... Would it make sense to have a map for E10 and a map for regular gas?

[Speeddog]

Question for the forum... Would it make sense to have a map for E10 and a map for regular gas?

IMO, absolutely yes.

[ManaloEA]

I fail to see how a Rexxer user could help you. You can't edit your fuel map with it.

Do you know what the map is? Where did you have it done? Ask for specifics, you paid for it.

I'd probably skip the advice of these techs and get the PCV + auto tune and do it yourself.

Thanks. This is the direction I am probably going to go.

Had the bike on the dyno twice, and it seems like the techs only care about WOT. Maybe I am just talking to the wrong techs... or they are trying to bait me for another run on the dyno... or maybe I just want "It All". Oh well, enough pondering. Time to warm up the credit card.

[ManaloEA]

PC-V and Autotune arrived today. Woohoo!