FP3 Fuelpak - eliminating decel pop
#11
12-16-2016, 01:59 PM
#12
12-16-2016, 02:26 PM
I have been playing with the FP3, experimenting with different settings. After running half a dozen tanks of fuel and speaking with Vance & Hines this is what I have learned:
You cannot enhance the performance - add HP and Torque without burning more fuel {yeah, I knew that one going in}. V&H correctly predicted an approximate 4+/- mpg drop.
By setting the Decel Pop reduction page to High {showing 3 firecrackers}, the ECM reduces pop the least - using less fuel to do so and my mileage (when I ran on the "light" setting, one firecracker, the pop was gone but my mileage dropped to 40), while not as good as it was pre tune {48 - 50 solo}, is now a very respectable 44.5. That is over the last 3 tanks/500+ miles on a variety of roads but mostly 2 lane state highways running between 55 and 70.
The decel pop is still gone. Rapid deceleration from high RPM only garners a very pleasant rumble/burble. I feel like I have struck a balance between controlling the pop and enjoying the enhanced performance vs mileage. I have gained increases in both HP and Torque and the bike runs significantly cooler. Lastly, it sounds AWESOME!
You cannot enhance the performance - add HP and Torque without burning more fuel {yeah, I knew that one going in}. V&H correctly predicted an approximate 4+/- mpg drop.
By setting the Decel Pop reduction page to High {showing 3 firecrackers}, the ECM reduces pop the least - using less fuel to do so and my mileage (when I ran on the "light" setting, one firecracker, the pop was gone but my mileage dropped to 40), while not as good as it was pre tune {48 - 50 solo}, is now a very respectable 44.5. That is over the last 3 tanks/500+ miles on a variety of roads but mostly 2 lane state highways running between 55 and 70.
The decel pop is still gone. Rapid deceleration from high RPM only garners a very pleasant rumble/burble. I feel like I have struck a balance between controlling the pop and enjoying the enhanced performance vs mileage. I have gained increases in both HP and Torque and the bike runs significantly cooler. Lastly, it sounds AWESOME!
#13
12-16-2016, 02:37 PM
No pop and better mileage...
The way they explained it to me was that to reduce pop the ECM feeds more fuel making the mixture too rich to ignite/pop. At the light setting you are getting the maximum pop reduction - by way of the maximum amount of fuel added and thus the worst mileage.
When I ran it set to light {one firecracker}, I got 40 mpg. Switching it up to high {3 firecrackers}, I am getting 44.5 and still have no pop whatsoever. Not sure if I really understand everything that is going on in the ECU but all I know is the bike is running stronger, cooler and sounds better {no pop}, than ever.
When I ran it set to light {one firecracker}, I got 40 mpg. Switching it up to high {3 firecrackers}, I am getting 44.5 and still have no pop whatsoever. Not sure if I really understand everything that is going on in the ECU but all I know is the bike is running stronger, cooler and sounds better {no pop}, than ever.
#14
12-16-2016, 02:37 PM
Seasoned HDF Member
I wish V&H would provide a manual.
#15
12-16-2016, 02:39 PM
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#16
12-16-2016, 02:45 PM
No need to re flash...
You can always go back and change the decel settings or even just go back to the original stock tune and start the new flash over again. I agree a manual instead of that little fold out paper could be very helpful. The guys at V&H are great to chat with and they will take all the time you need to get your questions answered.
#17
12-16-2016, 02:51 PM
Seasoned HDF Member
#18
12-16-2016, 03:42 PM
The way they explained it to me was that to reduce pop the ECM feeds more fuel making the mixture too rich to ignite/pop. At the light setting you are getting the maximum pop reduction - by way of the maximum amount of fuel added and thus the worst mileage.
When I ran it set to light {one firecracker}, I got 40 mpg. Switching it up to high {3 firecrackers}, I am getting 44.5 and still have no pop whatsoever. Not sure if I really understand everything that is going on in the ECU but all I know is the bike is running stronger, cooler and sounds better {no pop}, than ever.
When I ran it set to light {one firecracker}, I got 40 mpg. Switching it up to high {3 firecrackers}, I am getting 44.5 and still have no pop whatsoever. Not sure if I really understand everything that is going on in the ECU but all I know is the bike is running stronger, cooler and sounds better {no pop}, than ever.
Last edited by Rocker B; 12-16-2016 at 03:56 PM.
#19
12-16-2016, 07:59 PM
I may be confused... but it works
Rocker, All I can do is report what I have experienced. After several weeks of experimenting I found:
By returning to the original factory tune I got 48.5.
Switched back to the fuel Map the FP3 recommended with the decel pop set to light {one firecracker}, and got 40.
Switched to the decel pop high setting {three firecrackers}, and got 44.5.
All of these mileage numbers were based on running the same route at the same speeds. Both of the guys I spoke with at V&H confirmed that a 4 {+ or -}, mpg loss was normal and that the 44.5 I am now getting is about as good as it will ever get.
They said that the number of firecrackers reflects the level of pop you will have not the level you are trying to eliminate. Eliminating more pop to get to a lower level requires more fuel and subsequently higher consumption.
I'm not sure why I lost all of the pop at the high setting {just glad that I did}, in fact it sounds just like at the low setting but gets much better mileage... so go figure??? The bike runs stronger and cooler than ever so as far as I can see I am done.
By returning to the original factory tune I got 48.5.
Switched back to the fuel Map the FP3 recommended with the decel pop set to light {one firecracker}, and got 40.
Switched to the decel pop high setting {three firecrackers}, and got 44.5.
All of these mileage numbers were based on running the same route at the same speeds. Both of the guys I spoke with at V&H confirmed that a 4 {+ or -}, mpg loss was normal and that the 44.5 I am now getting is about as good as it will ever get.
They said that the number of firecrackers reflects the level of pop you will have not the level you are trying to eliminate. Eliminating more pop to get to a lower level requires more fuel and subsequently higher consumption.
I'm not sure why I lost all of the pop at the high setting {just glad that I did}, in fact it sounds just like at the low setting but gets much better mileage... so go figure??? The bike runs stronger and cooler than ever so as far as I can see I am done.
#20
12-16-2016, 08:42 PM
Rocker, All I can do is report what I have experienced. After several weeks of experimenting I found:
By returning to the original factory tune I got 48.5.
Switched back to the fuel Map the FP3 recommended with the decel pop set to light {one firecracker}, and got 40.
Switched to the decel pop high setting {three firecrackers}, and got 44.5.
All of these mileage numbers were based on running the same route at the same speeds. Both of the guys I spoke with at V&H confirmed that a 4 {+ or -}, mpg loss was normal and that the 44.5 I am now getting is about as good as it will ever get.
They said that the number of firecrackers reflects the level of pop you will have not the level you are trying to eliminate. Eliminating more pop to get to a lower level requires more fuel and subsequently higher consumption.
I'm not sure why I lost all of the pop at the high setting {just glad that I did}, in fact it sounds just like at the low setting but gets much better mileage... so go figure??? The bike runs stronger and cooler than ever so as far as I can see I am done.
By returning to the original factory tune I got 48.5.
Switched back to the fuel Map the FP3 recommended with the decel pop set to light {one firecracker}, and got 40.
Switched to the decel pop high setting {three firecrackers}, and got 44.5.
All of these mileage numbers were based on running the same route at the same speeds. Both of the guys I spoke with at V&H confirmed that a 4 {+ or -}, mpg loss was normal and that the 44.5 I am now getting is about as good as it will ever get.
They said that the number of firecrackers reflects the level of pop you will have not the level you are trying to eliminate. Eliminating more pop to get to a lower level requires more fuel and subsequently higher consumption.
I'm not sure why I lost all of the pop at the high setting {just glad that I did}, in fact it sounds just like at the low setting but gets much better mileage... so go figure??? The bike runs stronger and cooler than ever so as far as I can see I am done.
Last edited by Rocker B; 12-16-2016 at 09:55 PM.