Air filter questions!
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5th Gear
Joined: Aug 2016
Posts: 9
Likes: 0
From: N Nevada
Air filter questions!
It seems many if not most go for an after market air filter setup.
Some want it for looks, some for performance, or both.
I added a K&N filter to my stock air filter housing and with the ram air
setup it seems it would be more efficient than most open after market filter setups.
I guess my question is would a after market air filter housing improve anything over the stock?
What's your opinion on this?
Some want it for looks, some for performance, or both.
I added a K&N filter to my stock air filter housing and with the ram air
setup it seems it would be more efficient than most open after market filter setups.
I guess my question is would a after market air filter housing improve anything over the stock?
What's your opinion on this?
Tourer
Joined: Feb 2016
Posts: 456
Likes: 76
From: Montreal
Putting a high flow air filter in the stock housing will give little to no increase in air flow. You either need a new back plate or like me, take a saw and remove the excess plastic around the bolts/intake hole. I could keep the nice chrome cover with the 1200 Custom plate.
Road Master
Joined: Jun 2008
Posts: 1,065
Likes: 33
From: Illinois
Putting a high flow air filter in the stock housing will give little to no increase in air flow. You either need a new back plate or like me, take a saw and remove the excess plastic around the bolts/intake hole. I could keep the nice chrome cover with the 1200 Custom plate.
And yeah, you're gonna want to fatten up that fuel mixture since you'll be letting more air in & creating a lean condition.
Lean is mean on the track but I wouldn't want it on the street. Too much heat.
Putting a high flow air filter in the stock housing will give little to no increase in air flow. You either need a new back plate or like me, take a saw and remove the excess plastic around the bolts/intake hole. I could keep the nice chrome cover with the 1200 Custom plate.
To the OP as said here you will gain more IF you open and remove the box. I did on mine with a high speed cutter. Just need to keep the NECK part that spaces out the filter from the throttle body. That's basically all I kept. Rest of the BOX is gone. It's an easy mod if you have tools to cut it away and smooth out the plastic. Saved cash. Especially IF you already spent on the K&N that fits into the airbox like I did. Didn't want to waste the filter money spent so I just DIY'd the filter.
Post# 3803 at this link:
https://www.hdforums.com/forum/sport...-today-381.htm
GOOD LUCK!
Last edited by GMRO; Aug 17, 2016 at 02:32 PM.
Tourer
Joined: Feb 2016
Posts: 456
Likes: 76
From: Montreal
I've been directed to the xlforum for this mod by a fellow http://xlforum.net/vbportal/forums/s...d.php?t=719615
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5th Gear
Joined: Aug 2016
Posts: 9
Likes: 0
From: N Nevada
Thanks guys that is what I am going to do, cut away the stock air box.
Already drilled out the stock muffler's.
And installed a FP3 fuel manager.
This will hold me over till I get some money to do it right!
Already drilled out the stock muffler's.
And installed a FP3 fuel manager.
This will hold me over till I get some money to do it right!
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5th Gear
Joined: Aug 2016
Posts: 9
Likes: 0
From: N Nevada
So I could not bring myself to cut away the entire air box back plate so ended up with this.
I kind of like the ram air scoop on the front.
You think this will give me enough air flow?
I kind of like the ram air scoop on the front.
You think this will give me enough air flow?
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Stellar HDF Member
Joined: Nov 2015
Posts: 2,726
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From: Pennsyleffinvania
The stock set up gave you enough air flow, and unlike your modification, prevented dirt, dust, grit, sand, camel shat, meteors, and monkey dung, from being sucked into your engine.
Your horsepower increase, after your tune, should be about 1hp at about 6800rpms. Do you ride a lot at 6800 rpms?
Your horsepower increase, after your tune, should be about 1hp at about 6800rpms. Do you ride a lot at 6800 rpms?
Grand HDF Member
Joined: Dec 2014
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From: USA
Last edited by hscic; Aug 18, 2016 at 10:55 AM.