Lower Fairing on or off ??

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Apr 26, 2011 | 09:20 AM

#11

bwana1

Road Warrior

Joined: Feb 2009

Posts: 1,727

Likes: 11

From: TN

Over the years , with two different Ultras, I ran the gamut of cooling techniques: syn, cooler, true duals, tuner w/ dyno tune and removing the lowers had a greater cooling effect than the others combined. There is just a lot more air across the engine. I believe the HD manual says that the lower vents should be open when temps are above 60 degrees and that may give 25% of the extra air that no lowers will give

There is a 12 mile climb on I-10 in SE AZ and once I ditched the lowers, running 75 on a 95 degree day engine oil temp does not exceed 230.

Added benefit, w/out the lowers your fuel mileage will improve 2-3 mpg.

Lowers are for comfort++++++++++++++, they absolutely do not help with cooling.

Bwana

Apr 26, 2011 | 09:36 AM

#12

Bodean46

Road Master

Joined: Sep 2009

Posts: 1,169

Likes: 9

From: Southern Illinois

I leave mine on year round. Temps in Southern Illinois, W. Kentucky, and Northern Ten. in upper 90's. Running interstate at 80 to 85 mph my temps have never risen over 230 although fuel mileage is at 38 mpg.

Apr 26, 2011 | 11:27 AM

#13

FFeric

Outstanding HDF Member

Joined: Jun 2006

Posts: 2,670

Likes: 19

From: Waukesha WI

I leave mine on all year. I would think they direct the air towards the engine with their shape and position.

Apr 26, 2011 | 02:12 PM

#14

Emdog

Thread Starter

Cruiser

Joined: Aug 2008

Posts: 101

Likes: 0

From: Eastern OR

Sounding like my original thoughts were probably correct...lowers are mainly for rider comfort from the elements. And like most things, you like em or you don't.

Dec 4, 2011 | 10:29 AM

#15

RoadKingCop

Tourer

Joined: Oct 2007

Posts: 394

Likes: 29

From: Georgia

Question,

Do they quiet down the wind buffeting? I'd like just a little less wind noise on my 2008 FLHT and to hear the stereo a little better. I love the way they look, but don't want them if they don't quiet down my ride a little bit. If not, what's the best suggestion for quieting or CALMING the air around me?

Ben