Power Vision Information Thread
Road Warrior
Joined: Jan 2010
Posts: 1,290
Likes: 20
From: Salem, Or
If you're looking for fuel economy in the cruise range you can have both power and mileage in one tune. I see no rational reason to tune for economy anywhere else. The only drawback to increased mileage is some corresponding increase in heat and part-throttle response. I find both side-effects to be minimal on my '07 even when running at stoich.
If you're doing Basic tuning (closed-loop) you can't tune for WOT anyway, so I would use the same values that are present in the open-loop areas of the FM tune, then set Lambda as near 1.0 as you're willing to go for the closed-loop portion. For AFR bikes, set AFR values to 14.6 and Closed Loop Bias to 450-780 (lower being leaner).
I have a second tune which is the same as the normal tune except all AFR cells are at 13.0. This is for emergencies and I need all the cooling I can get, like for a summer bout of gridlock traffic that doesn't move for long periods.
If you're doing Basic tuning (closed-loop) you can't tune for WOT anyway, so I would use the same values that are present in the open-loop areas of the FM tune, then set Lambda as near 1.0 as you're willing to go for the closed-loop portion. For AFR bikes, set AFR values to 14.6 and Closed Loop Bias to 450-780 (lower being leaner).
I have a second tune which is the same as the normal tune except all AFR cells are at 13.0. This is for emergencies and I need all the cooling I can get, like for a summer bout of gridlock traffic that doesn't move for long periods.
I have looked everywhere but am unable to find the section to set Closed Loop Bias to 450-780. Where do I go to adjust CLB?
Member
Joined: Jul 2009
Posts: 4,310
Likes: 1,079
If your bike is a 2010, it doesn't have a closed loop bias.
Thread Starter
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Extreme HDF Member
Joined: Sep 2005
Posts: 11,615
Likes: 50
From: Baton Rouge, LA
Gas mileage will be several MPG higher at 14.6, as when I accidentally ran my rich PV tune (13.0) for a long day's ride my mileage was around 6mpg lower, and I saw no difference in ET and little in OT for that day vs. the next. I didn't notice much difference in throttle response either. I think the cooling effects of lowering AFR's is somewhat exaggerated based on my experience with this bike.
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Extreme HDF Member
Joined: Sep 2005
Posts: 11,615
Likes: 50
From: Baton Rouge, LA
CLB is only on AFR bikes, and like Heatwave said you don't have this table. You would set Lambda to .981-1.02 to stay in closed-loop, which achieves the same effect. I only mentioned CLB in my reply to you in an effort to avoid confusion for riders of older bikes like mine.
Last edited by iclick; Apr 3, 2012 at 08:24 PM.
Member
Joined: Jul 2009
Posts: 4,310
Likes: 1,079
I believe the Closed Loop range is .981 - 1.02
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Cruiser
Joined: Jun 2006
Posts: 129
Likes: 0
From: Houston, Texas
What I did to establish my cruise range on the map was adding the Vehicle Speed Sensor (VSS) to my gauges when logging data. I would then look at the log file in excel and note what Kpa value was at certain steady speeds, I varied my speed using different gears and cruise control to simulate different driving scenarios. From this I was able to set CL in the cruise range. Hope this helps.....
Cruiser
Joined: Apr 2012
Posts: 193
Likes: 22
From: California
Quick question. Maybe I missed it througout the thread but does the PV have a feature that adjust the lag on the fly by wire system used in the 08 and up touring models? Im running a PCV but it does nothing for the lag in the throttle body. I was considering the Vance and Hines new throttle pak which claims to adjust the lag. Would like to stick to Dyno Jet.