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  #1  
Old 10-16-2009, 03:16 PM
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Default Stock Air Cleaner

Has anyone ever done a remap with a tuner without changing the stock air cleaner?
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  #2  
Old 10-16-2009, 04:29 PM
Faast Ed Faast Ed is offline
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It would be a waste of money, time and effort to retune a bike with such an air restriction on it. Remaps cost money. If you want gain, you need to let the motor breath.

It's already been proven so very many times, that the cheapest gain-per-dollar is the air cleaner, pipes and tune combo. Let more air in, let more air out, compensate the fuel for the added ability to breath. Very noticeable gain. After that the upgrades "dollar per gain" ratio starts to increase.

You may get your bike to run a lil cooler by remapping a stock air filter, but u very likely won't notice a gain. You will notice a loss of mileage though! LOL
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  #3  
Old 10-16-2009, 04:43 PM
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why would you want to keep the paper filter when you can throw in a K&N or any other reusable filter and save some coin over the life of your bike?????
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Old 10-16-2009, 05:42 PM
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Upgrading your air intake is a must do starting point for performance enhancements, it's gotta breath.
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Old 10-16-2009, 06:18 PM
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I guess it's just hard for me to believe the stock filter is marginal and restricting flow. If it were then every mile I drive the bike it would be loosing performance because of dirt in the filter.

I've got 7500 miles on my bike and the performance feels every bit as good as the day I bought it.

BTW, the stock filter is cleanable and reuseable. At least according to the service manual.
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Old 10-16-2009, 08:56 PM
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I found something I hadn't noticed before and it got me to thinking. The actual stock air filter element (the football one) measures 21 1/2 (circumference) x 1 1/16 (wide) filter area.

Now that's a fair amount of breathing room considering the plastic backplates intake holes (3 of them) measure a total of 5x1"! No wonder the filter gets starved.

I think by taking a dremel and opening up 2 large holes on the backside of the plastic backplate will free up the breathing part of things. Poor mans Stage 1.

Cost nada...

Now all I have to do before I do that is go to Fuel Moto and order that darned TTS Mastertune system.
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  #7  
Old 10-16-2009, 09:52 PM
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Quote:
Originally Posted by plane View Post

BTW, the stock filter is cleanable and reuseable. At least according to the service manual.

Dustable (not really a word but you get my point) I will agree but for how long. As far as opening up the back side for more air flow. Sure I have used a 1/2 inch whole saw to pop a vents in other bikes I have owned. To each their own. You have been on the forum long enough to know that HD's run super lean out of the show room. If you want your bike running cooler and more efficient then get a proper stage one done or a tuner/K&N/pipes. If it is about saving money leave it alone cuz the paper filter is very restrictive. My two cent and that means about shat!
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Old 10-16-2009, 09:52 PM
Faast Ed Faast Ed is offline
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Quote:
Originally Posted by plane View Post
I found something I hadn't noticed before and it got me to thinking. The actual stock air filter element (the football one) measures 21 1/2 (circumference) x 1 1/16 (wide) filter area.

Now that's a fair amount of breathing room considering the plastic backplates intake holes (3 of them) measure a total of 5x1"! No wonder the filter gets starved.

I think by taking a dremel and opening up 2 large holes on the backside of the plastic backplate will free up the breathing part of things. Poor mans Stage 1.

Cost nada...

Now all I have to do before I do that is go to Fuel Moto and order that darned TTS Mastertune system.
More like a stage 0.25

I am stunned that you would spend money on a TTS and not spend any on a free flowing air filter.

Why did you bother coming here and asking the question, only to block out every single response? I don't get it.

Save your TTS money and go buy some furniture or something, Sheash!
(The performance thing ain't gonna work out for you, I can see that already).
Better off sticking with something you stand a chance at. Ever try knitting?





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Last edited by Faast Ed; 10-16-2009 at 10:00 PM.
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  #9  
Old 10-16-2009, 10:16 PM
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I didn't know I could block responses, and even if I could I wouldn't.

I guess my premise from the beginning was that the stock air cleaner is plenty big and flows plenty of air. Why would they make such a large filter and have a tiny air intake? That's crazy, in fact that inlet is actually 4 1/2x1". Just for the hell of it I took my ShopVac and hooked it up to the inlet of the filter, plugged all of the mounting holes, etc. with masking tape and turned on the vac. There was NO difference in RPM on the motor as I stuck it to the filter and removed it. If the filter was restrictive the RPM's of the vac motor would have increased. I just don't believe that the stock filter is a piece of junk. I do think that the stock intake housing is a joke.

I'm not trying to be a wise ass here. I'm asking for anyone in the know if the stock system will work (modified).

I'm also aware that EVERYONE upgrades their air filters, but again why would MOCO make one that is restrictive to begin with. As I stated previously if the filter was marginal bike performance would immediately start dropping off from dirt ingestion.

When I pulled the filter tonight and saw the really tiny air intake I knew that was the problem, not the filter. Think about it, small intake hole large filter area means as the filter gets dirty there's more than enough area to handle it.

I'm not trying to be cheap believe me. In fact I have my eye on the new Ventilator air cleaner that comes on the 2010 CVO's. But given how times are hard I'm looking for a way to save some coin.

Now really convince me that the stock filter can't flow enough air for a 96" motor.
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  #10  
Old 10-17-2009, 12:02 AM
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Why would you ask such a stupid question? If you wanted to save money why didn't you buy a Sportster? A K&N Filter isn't that expensive and if you want a little more performance that is the way to go. To spend money on a Dyno run and a Sert System?????? Also when you ask a question on the Forum why do you dispute the opinions of riders who take the time and effort to reply.
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2009, air, calibration, cleaner, create, davidson, ecm, filter, harley, hd, holes, problems, remap, stock, ventilater, ventilator


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