Air filter upgrade
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Joined: Sep 2007
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Air filter upgrade
Has anyone read American Rider Magazine tech article by Joe Minton. He recommends not switching out the air filter to a K&N or ScreaminEagle type element.Dyno testing has proven, that you loose power in the midrange,( 2000-3500 rpm)he says the stock airbox works best.What do you guys think?. This goes against everything I've learned abouta Harley motor.
Outstanding HDF Member
Joined: Feb 2007
Posts: 2,710
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From: Spokane, WA.
RE: Air filter upgrade
I have the SE AC on my 07 Fatboy. Dyno at 1 k with SERT. Recently took off the ( football A/C cover ) so now the AC is all exposed with just a center cover cap--- > IT MADE more power exposed, and I got better MPG. The post AC football removal was not dyno run, but I found more air is good!- I did not have a lack of power 2K RPM to WOT in 6th , it like hang on and go! I would have to say that if the K&N flows more CFM, then go for it.Looking for a K&N actually to repalce the SE filter I have now.
Regards- Mark
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Joined: Mar 2007
Posts: 3,706
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From: Woodstock, Ont , Can
RE: Air filter upgrade
Read something to the effect as well. I think it has to do with a combination of things, mainly the map sensor and restrictive filter possibly giving optimum power at that rpm. If that's the case my solution would be a tmax with auto tune and go with the better breather. With a correct setup it should develop more hp with a less restrictive breather at most rpms.
Ron
Ron
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Joined: Dec 2006
Posts: 1,530
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From: Diamond Bar, California
RE: Air filter upgrade
He may be right if the engine is totaly stock, I would have to call BS on a modded engine.
I have no midrange dip at all, just tire shedding torque!
thanks to Head-Quarters and Zippers!
I have no midrange dip at all, just tire shedding torque!
thanks to Head-Quarters and Zippers!
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