Have bike dyno or not????
Road Captain
Joined: Mar 2008
Posts: 712
Likes: 55
From: Punta Gorda, Florida
skull, your correct fuel/air mixture depends on several factors. Once you changed your intake and exhaust your map has to be changed as well. The map is the fuel/air ratio at various rpm's. This is where your fuel pack comes into play. The fuel pack will set your correct fuel/air ratios at various rpm's according to which exhaust and intake systems you have. I had a power commander, not a v&h fuel pack and downloaded the maps off their website and then uploaded the correct map into the power commander. You just match up the exhaust and intake you have with the maps listed on the website. If you had someone else install the fuel pack and the bike is running good, seems like you're good to go.
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Cruiser
Joined: Nov 2009
Posts: 179
Likes: 0
From: South Dakota
skull, your correct fuel/air mixture depends on several factors. Once you changed your intake and exhaust your map has to be changed as well. The map is the fuel/air ratio at various rpm's. This is where your fuel pack comes into play. The fuel pack will set your correct fuel/air ratios at various rpm's according to which exhaust and intake systems you have. I had a power commander, not a v&h fuel pack and downloaded the maps off their website and then uploaded the correct map into the power commander. You just match up the exhaust and intake you have with the maps listed on the website. If you had someone else install the fuel pack and the bike is running good, seems like you're good to go.
Road Captain
Joined: Mar 2008
Posts: 712
Likes: 55
From: Punta Gorda, Florida
If you bought the bike with the exhaust, intake and fuel pack already installed, it's PROBABLY set correctly. If you changed exhaust or intake since you bought it, the map will most likely have to be changed. Like I said, I had a power commander not a V&H fuel pack. But I checked their website and you change the map manually, right on the fuelpack.It looks like there are buttons on it which you press to change mode and value. You go to the V&H website, http://www.fuelpakfi.com/harley1.html enter your exhaust sytsem, intake and you'll get your correct mapping. You could do all that anyway and check for yourself just to make sure it is correct.
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Cruiser
Joined: Nov 2009
Posts: 179
Likes: 0
From: South Dakota
If you bought the bike with the exhaust, intake and fuel pack already installed, it's PROBABLY set correctly. If you changed exhaust or intake since you bought it, the map will most likely have to be changed. Like I said, I had a power commander not a V&H fuel pack. But I checked their website and you change the map manually, right on the fuelpack.It looks like there are buttons on it which you press to change mode and value. You go to the V&H website, http://www.fuelpakfi.com/harley1.html enter your exhaust sytsem, intake and you'll get your correct mapping. You could do all that anyway and check for yourself just to make sure it is correct.
thanks for the info!!!!
Ultimate HDF Member
Joined: Oct 2007
Posts: 5,257
Likes: 6
From: Leander Texas
were they talking dyno run or a dyno tune? a run just tells you what you have and should be under $40. i had a tune done with the pcIII and gained alot on a stock motor with breather and rush slipons. Mine went from 63.99 hp to 75.41 and 78.16 to 87.36 tq
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