2010 Fatboy mpg?
R.I.P. BROTHER
Joined: Dec 2008
Posts: 3,076
Likes: 6
From: Colorado Springs
If you have to ask......LOL!!!
The only thing that the stage one mapping did to your EFI mapping was to richen the idle. Short of that it should actually be more efficient now that it can breath and exhale better....But now that it also sounds better you will be on the gas all the time to enjoy that sweet Harley Rumble resulting in worse mileage then a bone stocker!!!
Now if you go buy an actual EFI programming device of some sorts? PC111, SERT, Etc..etc.. and you have the bike tuned by a pro on a dyno he will richen your fuel mapping to make max power by watching not only the power produced by the bike on the dyno but also the air fuel ratios.....
As it stands your bike is EPA mandated "Enviro-Friendly Tuned" from the factory. That stage one download did nothing to effect that short of giving it more fuel at idle so it dosent get so hot.
The only thing that the stage one mapping did to your EFI mapping was to richen the idle. Short of that it should actually be more efficient now that it can breath and exhale better....But now that it also sounds better you will be on the gas all the time to enjoy that sweet Harley Rumble resulting in worse mileage then a bone stocker!!!
Now if you go buy an actual EFI programming device of some sorts? PC111, SERT, Etc..etc.. and you have the bike tuned by a pro on a dyno he will richen your fuel mapping to make max power by watching not only the power produced by the bike on the dyno but also the air fuel ratios.....
As it stands your bike is EPA mandated "Enviro-Friendly Tuned" from the factory. That stage one download did nothing to effect that short of giving it more fuel at idle so it dosent get so hot.
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Cruiser
Joined: Oct 2009
Posts: 228
Likes: 0
If you have to ask......LOL!!!
But now that it also sounds better you will be on the gas all the time to enjoy that sweet Harley Rumble resulting in worse mileage then a bone stocker!!!
As it stands your bike is EPA mandated "Enviro-Friendly Tuned" from the factory. That stage one download did nothing to effect that short of giving it more fuel at idle so it dosent get so hot.
But now that it also sounds better you will be on the gas all the time to enjoy that sweet Harley Rumble resulting in worse mileage then a bone stocker!!!
As it stands your bike is EPA mandated "Enviro-Friendly Tuned" from the factory. That stage one download did nothing to effect that short of giving it more fuel at idle so it dosent get so hot.
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Road Warrior
Joined: Jan 2008
Posts: 1,446
Likes: 8
From: greenwood, mo
With the stage one there is a small increase in performance add a PCV and it will be even more
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