Join Date: Nov 2009
Location: Texas Gulf Coast
Allright...took the PC III off and ran the bike for a decent little spin, here are MY thoughts:
1. This bike doesn't even need a PC on it, power difference is negligible at best...my assometer could not tell the difference in power.
2. Popping is minimal, almost the same as with the PC on, popping on shift is none, decel popping is barely there...only pops/backfires on standstill with a good roll of the throttle (this is due to the freeflow design of the V&H system I think as it did this as well with the PC III)
3. Fuel mileage is yet to be seen, however; I THINK the PC III was dumping more fuel than actually needed
4. Flat spots at approximately 45 & 75 are gone, I tried everything with the PC III to remove this....increse of fuel delivery, decrease of fuel....nothing took care of it, even across RPM bands I simply could not eliminate it.
Final thought: (for what it's worth, some may disagree)
The Stratoliner/Roadliner really does not require the PC III?
I think unless you are doing the BAK, Pipes and a few other mods it really isn't necessary.
I think the ECU on the bike along with the EXUP and O2 sensors will adjust to any exhaust mods. Some will disagree and that is okay, to each its own. I however have had nothing but issues since the install.
I have friends whom work at Yamaha and have told me even they are having to redo MAPS constantly on the big cruisers to get them just right. One of my buddies actually told me to disconnect it as it isn't really doing anything except shutting down the O2 sensors and adjusting 3 fuel curves. I'm not sure about the accuracy of that so I'll leave it be.
I'll keep everyone posted to how it runs with the V&H pipes and without the PC III
2007 Stratoliner Midnight
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