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Author Topic: Harley newbie - help with some questions re: 2010 Fat Bob  (Read 799 times)

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tpetty

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Harley newbie - help with some questions re: 2010 Fat Bob
« on: October 01, 2015, 08:51:16 PM »

Hi all,

Just bought a 2010 CVO Fatbob.  I've loved the look of this bike, and the sandstorm paint, since it came out 5 years ago.  I've had several motorcycles before, but never a Harley.

I'd forgotten how quiet stock pipes are.  Will need to fix that.

I'm almost 6' 5".  Would really like to get extensions for the foot controls.  I see Kurakyn sells some for Dynas - but they specifically state that the 2010 FatBob won't work with factory exhaust.

so questions:

1. Has anyone found a workaround for the foot extensions with stock exhaust?  Is there another company that I'm unaware of?  This is a priority for me.  If there is no other option, I'll just have to replace the entire exhaust, which makes any slip on exhaust nonviable.  Also, Kurakyn mentions that staggered aftermarket exhaust would allow them to work.  Why staggered?  Doesn't that just refer to the appearance at the exhaust tips? 

2.  This comes with the Screaming Eagle heavy breather intake.  Hate it.  Looks cool - but prevents my thigh/knee from hugging the bike, and really awkward for me to use the foot brake.  Has anyone changed from this to a Screaming Eagle Ventilator style, or Vance Hines style one and noticed improvement in leg/foot position?

3.  I've read mixed opinions regarding fuel management and exhaust/intake changes?  I assume that the bike - stock - is already set to accomodate a high performance intake, so really all I'd be changing is the exhaust.  Anyone found that they did NOT need to spend the extra hundreds on a computer module?
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lilcoot

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Re: Harley newbie - help with some questions re: 2010 Fat Bob
« Reply #1 on: October 01, 2015, 09:51:09 PM »

Welcome to the site, tpetty!  I also love the CVO Fat Bobs.  I wish I could get a second bike, because I've been jonesin' for a FB since they came out.  Congrats on the purchase.

The Heavy Breather is one of the best performing intakes you can get.  The Ventilator is also a very good intake, so you won't lose any performance compared to the Heavy Breather.  I think many other intakes would be a little more restrictive compared to those two, but they won't make any noticeable difference on a stock or lightly modified motor.  Do what's comfortable for you.

As for the footpeg extensions, I'm not sure why they won't work on the CVO.  The Gatlin exhaust is the same as the regular non-CVO Fat Bobs.  And I don't believe the Diamond Black pegs use proprietary mounts just for them.  Maybe someone else with more info will chime in.

Be safe and have fun!

Dan
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Para Bellum

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Re: Harley newbie - help with some questions re: 2010 Fat Bob
« Reply #2 on: October 02, 2015, 04:51:22 PM »

3.  I've read mixed opinions regarding fuel management and exhaust/intake changes?  I assume that the bike - stock - is already set to accomodate a high performance intake, so really all I'd be changing is the exhaust.  Anyone found that they did NOT need to spend the extra hundreds on a computer module?
The stock HDs air:fuel mixture is set very lean to pass the EPA emission requirements.  Even though the bike has a high-flow intake, the stock exhaust is very restrictive, since it has the catalytic converter and very quiet mufflers.  Once you switch to a low restriction exhaust, the engine can draw in much more air---more than the ECM (engine control module) can adjust for.  This makes the engine run so lean that performance will be hurt.  So yes, it really needs a new fuel map, which requires a tuning module (the computer module you refer to), such as Dyno Jet's PowerVision or Harley's SEPST.

The other advantage of getting a tuning module and a (good) dyno tune is that the fuel map is specific to your engine, not a one-size-fits-all generic map.  Examples of generic maps are the factory map, Screamin' Eagle downloads from the dealer, and those available from many others.  OTOH, the generic maps are cheaper than a dyno tune, usually better than a poor dyno tune, and often run fairly well--certainly better than the factory map.

There's lots of back-and-forth on the forum about canned maps vs. dyno tuning, so others will weigh in to expand on this.  Welcome to the forum.
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