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no remap after pipe and A/C change

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Old Nov 20, 2010 | 08:16 AM
  #1  
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Default no remap after pipe and A/C change

Has anyone installed slippons and an A/C unit on a 2010 FatBoy Lo or any other bike of that year without remapping the computer? They say the 4 wire o2 sensors can compensate for that. Just don't want to do it and have a poor running engine.
 
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Old Nov 20, 2010 | 08:23 AM
  #2  
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I had mine remapped and my bike ran perfect for a year and a half before I got a PCIII and had it dyno tuned. I've read that you really don't need the map but don't know how true that is.

My map also cost $150 so I would recommend holding off and putting that money toward some type of fuel management system. JMHO
 
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Old Nov 20, 2010 | 08:24 AM
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You're fine with exhaust mods only....as soon as you touch the air cleaner, you should do some sort of fuel management.
 
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Old Nov 20, 2010 | 10:07 AM
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If your going to sink 150 into a remap get the PCV from fuelmoto all set up for 299 totally plug and play
 
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Old Nov 20, 2010 | 11:22 AM
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Originally Posted by Heritage632
I had mine remapped and my bike ran perfect for a year and a half before I got a PCIII and had it dyno tuned. I've read that you really don't need the map but don't know how true that is.

My map also cost $150 so I would recommend holding off and putting that money toward some type of fuel management system. JMHO
Did you check your plugs? I'll bet you were running really lean. I don't know about you guys, but i would rather spend a little more and ensure my bike is running properly. This is not a scare tactic or a dealer telling you what to do, jsut my personal opinion, but if i am going to change the air cleanerf on a bike I will tell them either remap or tuner. PERIOD. I am not going to be responsible for that stuff for others.

I am always suspcious when I want to buy something and suddenly the bill jumps $500 or whatever, but it is a fact that the bikes already run extremely lean from the factory. That means that the mixture or air and gasoline is set to meet the EPA's standards for air quality in this country. It may seem like it is running fine, but once you add a tuner and get it properly tuned you will realize it was running like crap.

The person who explained this the best to me was Geoff Gaites from The Cycle Doctor in Costa Mesa, CA where I got my bike Dynoed last time. Call him and talk to him. As far as the "compensation" by the computer, not so much in my opinion. He can also explain this far better than I can. 949-645-1235

Honestly, I spent a lot of money on my bike and another few hundred on this and that to make it run as it should run is well worth it to me. The compensation by the computer is not going to change enough and the factory download is junk. Spend a little more and get a tuner and you will feel the difference. I had the download on my bike when I bought it used. It ran like crap. Changed the already aftermarket pipes and it ran even worse. Added a power commander and it felt like a new bike. Just my experience.

Then I took for a Dyno at a "cheap" Dyno place. It ran much bettter than before. Then I built the motor and went for a real Dyno. The difference was night and day. Really. I have not once felt like I wasted the money on the Dyno tune.

Drew
 
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Old Nov 20, 2010 | 11:27 AM
  #6  
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Once you swap out both A/C and pipes, you really need to remap. But take it from me, invest in some kind of fuel management system. You won't believe the difference it makes, even with just the mods to the A/C and free flowing pipes.

And if you should decide later down the road to go with cams/headwork/etc., that's one cost you don't have to figure into the build.
 
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Old Nov 20, 2010 | 09:45 PM
  #7  
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Well I installed both the air cleaner and the slippons. The Rush slippons sound great. I am really surprised. I used the satin heat shields and it looks really good breaking up the black pipes on the denim Lo. Any way, the bike idled fine, sounded great and did not snap, crackle or pop when blipping the throttle quick or reving it slowly. I haven't riden it yet though. D&D swears that you do not have to do anything when adding their exhaust and an A/C. There is a magazine article that states that the new bikes with the four wire sensors can compensate for them. You guys that felt the need for modules might have had pre 2010 bikes that did need it done. Anyway, for now I'm going to ride as is and see how it runs.
 
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Old Nov 20, 2010 | 10:12 PM
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I'm running Rush 1.75s with a K&N 3309 and the bike runs fine. There are some who say the 07+ bikes compensate for the change meaning the bike will run no leaner than it did when stock.

Same folks will tell you the bike will run better and have more hp with a fuel manager or remap. I may get one down the road but for now I see no compelling need.
 
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Old Nov 20, 2010 | 10:27 PM
  #9  
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Heritage632
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Originally Posted by DR. V-TWIN
Did you check your plugs? I'll bet you were running really lean. I don't know about you guys, but i would rather spend a little more and ensure my bike is running properly. This is not a scare tactic or a dealer telling you what to do, jsut my personal opinion, but if i am going to change the air cleanerf on a bike I will tell them either remap or tuner. PERIOD. I am not going to be responsible for that stuff for others.

I am always suspcious when I want to buy something and suddenly the bill jumps $500 or whatever, but it is a fact that the bikes already run extremely lean from the factory. That means that the mixture or air and gasoline is set to meet the EPA's standards for air quality in this country. It may seem like it is running fine, but once you add a tuner and get it properly tuned you will realize it was running like crap.

The person who explained this the best to me was Geoff Gaites from The Cycle Doctor in Costa Mesa, CA where I got my bike Dynoed last time. Call him and talk to him. As far as the "compensation" by the computer, not so much in my opinion. He can also explain this far better than I can. 949-645-1235

Honestly, I spent a lot of money on my bike and another few hundred on this and that to make it run as it should run is well worth it to me. The compensation by the computer is not going to change enough and the factory download is junk. Spend a little more and get a tuner and you will feel the difference. I had the download on my bike when I bought it used. It ran like crap. Changed the already aftermarket pipes and it ran even worse. Added a power commander and it felt like a new bike. Just my experience.

Then I took for a Dyno at a "cheap" Dyno place. It ran much bettter than before. Then I built the motor and went for a real Dyno. The difference was night and day. Really. I have not once felt like I wasted the money on the Dyno tune.

Drew
No, I did not check my plugs so I don't know how lean I may have been running. First, the only reason I got the map is because I was told BY THE DEALER that was the cheapest way to set it up safely. When I say it ran perfect I mean it wasn't sluggish, nor did it backfire at all so that's what I'm judging it by.

With that said, I did notice a big difference when I finally got a PCIII and had my bike dyno tuned. So, that's why I suggest to the OP to SPEND the extra $$$ and get some type of fuel management system and avoid the re map. Some dealers will tell you a re map works and others will say it does nothing.
 

Last edited by Heritage632; Nov 20, 2010 at 10:58 PM.
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