High flow a/c?
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Stellar HDF Member
Joined: Sep 2015
Posts: 2,008
Likes: 259
From: Seattle
Zen...for my buddies bike. He is running stock right now but we are gonna end that ****. Here is my take on it, stock sucks..but I don't know the cfm. Most aftermarket air cleaners will provide engine with enough air as it needs although they have the ability to provide different CFM if allowed...but stage 1 or 2 isn't going to pull enough cfm to make it an issue. I would wonder with the cleaner off what cfm the throttle body limits the engine too..
Seasoned HDF Member
Joined: Aug 2013
Posts: 6,064
Likes: 1,945
From: Somewhere on the Bourbon trail
Cool. Reason I ask is doing just the filter ain't gonna do any good unless your buddy has a Rushmore bike. A Stage I kit, or similar non-HD, replaces the backing plate that allows more air for intake, but you knew that already.
Seasoned HDF Member
Joined: Sep 2009
Posts: 17,136
Likes: 6,161
From: SE Michigan
Zen...for my buddies bike. He is running stock right now but we are gonna end that ****. Here is my take on it, stock sucks..but I don't know the cfm. Most aftermarket air cleaners will provide engine with enough air as it needs although they have the ability to provide different CFM if allowed...but stage 1 or 2 isn't going to pull enough cfm to make it an issue. I would wonder with the cleaner off what cfm the throttle body limits the engine too..
In fact competent tuners will tell you that with larger bore, ported heads a ported throttle body will only get you about 2 HP
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Stellar HDF Member
Joined: Sep 2015
Posts: 2,008
Likes: 259
From: Seattle
Picked up some exhaust off the forum, a big sucker, and working on a tuner for him. he likes the 90° air cleaner I just wanted to make sure I wasn't missing something here since I'm not spending my money
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