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[Sledge]

I didn't have to drill a hole in my liner. I do have to pull out the liner to get to the knob. That's not an issue.

Are we talking about 58146-07 which is the harley part?  or this: http://www.ebay.com/itm/Harley-Ultra-Classic-quick-detach-fairing-lower-kit-NEW-/280637412680

HD part is 90? and the other one is 40.  Harley part has thumbwheels the other one has knobs.

Since I only mess with 'em 2 times a year (once off, once on) and I'm not sure I want them to come off that easy anyway (theft), I'm going to leave mine on with bolts.

Sledge

[Randy C]

I noticed the oil pressure dropped and the performance suffered the hotter the bike got,Took off the lowers and the performance came back and the oil pressure increased.I imagine in really cold weather they would work great but that's the reason I went to all the trouble of changing my faring brackets and color matching so I could accommadate the vented lowers.I see bikes everyday with factory lowers and they leave them on all year long.I was told because my bike is a 110 and has a modified exhaust and tune that it runs hotter than a stock bike When I originally had it tuned the heat was reduced by half ,I can't imagine how hot it would be if it still had the converter on it.I will have to decide whether to sell the set up and put the original brackets back on or just put them on a shelf with the other trials and errors 

[dayne66]

My '08 came with the MOCO parts installed...but I added the liners when I got them for X-mas.

[charles05663]

I just completed the addition of vented lowers to my 09 SERG,changed all the brackets and had them painted to match.

Where did you get them painted?  I have contacted a couple of folks from the site and have not heard back from them.  I am looking to get a set painted.

[Midnight Rider]

I noticed the oil pressure dropped and the performance suffered the hotter the bike got,Took off the lowers and the performance came back and the oil pressure increased.I imagine in really cold weather they would work great but that's the reason I went to all the trouble of changing my faring brackets and color matching so I could accommadate the vented lowers.I see bikes everyday with factory lowers and they leave them on all year long.I was told because my bike is a 110 and has a modified exhaust and tune that it runs hotter than a stock bike When I originally had it tuned the heat was reduced by half ,I can't imagine how hot it would be if it still had the converter on it.I will have to decide whether to sell the set up and put the original brackets back on or just put them on a shelf with the other trials and errors 

Who told you that?  That is exactly opposite of what should happen.  Under your avatar you say you have a TT Race Tuner...do you mean a TTS Mastertune?  If so, are you running a canned map or a custom map?  Or are you running a SE Race Tuner done by the dealer, and they are feeding you that BS about your engine running hotter after pipes and a tune?  Performance is generally dictated on Ambient air temps being sucked into the intake, with cooler air giving better performance than hot, humid air.  Your oil temps would have to be increasing fairly dramatically to notice a significant drop in oil pressure, depending on what kind of oil you are running (Dino as opposed to Synthetic).

[Phantom6722]

The vented lowers have a leading edge that still sticks out when they are retracted.  It causes turbulence and decreases the laminar flow back to the engine.  If you take off the vents it corrects that problem but defeats the purpose of having them there to close in the winter (as short as it is down here).  I have seen a pair where the edge was shaved off and the guy said they are much cooler and will direct air onto the engine a lot better.  I haven't done that since I like the feel of no lowers in the hottest days of summer and it's definitely cooler but it's an interesting option.  I would like to hear from anyone who shaves off that leading edge to see how it works out for them. 

You can get a quick detach kit for the lowers at the dealer, take lowers off in the summer, put back on in the fall/winter.  Don't really need the kit but it's a bit easier to get 'em off.  Only 3 bolts per lower but on mine you have to take out the glove box liners.

Sledge

Sledge,
Have you any pictures  that explains your leading edge comments?

[Sledge]

Sledge,
Have you any pictures  that explains your leading edge comments?

Here's a couple.  The fully open position leaves a lot of the inner edge exposed.  It also has a curve and a couple holes in the edge that I think might actually reduce overall air to the engine by adding to the turbulence.  They put a recurve on windshields (windvest) to redirect over the rider's head now and it should slow and redirect air in a similar way on the curved edge of the vent door.  I wonder if any windtunnel tests were done to see what the effect is on air that would ordinarily blow straight to the engine?  Without that inner leading edge I'll bet the lowers have a more "ram air" function as did the nonvented ones I used to have on my '03.  They might actually work much better with the vent doors removed and still give the rider's legs protection from debris and too much wind in cold weather.  If I could get a set of used vent doors to test it out on I would gladly cut the edge off so they open fully.  Just don't want to cut on my originals.

Sledge

Would love for someone to try it and let us know.

[Sledge]

Closed.

See how much is still in the airflow in the above pic of them opened?  Leaning more to just taking out the vent doors altogether.  They seem counterproductive, like they were added to add cost, not benefit.

Sledge

[Phantom6722]

Closed.

See how much is still in the airflow in the above pic of them opened?  Leaning more to just taking out the vent doors altogether.  They seem counterproductive, like they were added to add cost, not benefit.

Sledge

Sledge,
They are different to those fitted to my SERG; with my lowers the vents are located in the centre. (have no pics)

[grc]

If you want to try it Sledge, it isn't that difficult or terribly expensive if you change your mind afterwards.  It's very easy to remove and replace the moveable vent piece, and they sell for $13.99 MSRP each.  Someone posted on a different thread yesterday with pictures of what it looked like after he trimmed the vent.   http://www.cvoharley.com/smf/index.php?topic=74634.msg1025895#msg1025895


Jerry

[Sledge]

Wow thanks Jerry, that is exactly what I was talking about.  I think I'll mark the backside of mine in open position so I can make the curve match the lowers, then cut.  I'm going to try it soon and will report back on how the heat issue is affected.

Great info.

Hey Phantom the vents are in the center, lowers are upside down.  Maybe since you are in Australia?  

Sledge

[timo482]

after 6 years of one vented lower [the sidecar lower still matches the old style] im ambivalent - on my old bike i had a metal vent cut into it that blew air on my leg when open, but i still think the old lowers blew more air on the engine

to

[Texas Fat Boy]

I use to take the vents out of my Lowers in the summer to let more air through. It is a major difference with the heat.
But with the new 2012 SE and the speakers installed, I didn't want to mess with it twice a year again so I decided to trim them with a dremil tool.


Here's a couples of pictures open and closed. Amazingly closed they still have full coverage.

open


closed
 

[Phantom6722]

Wow thanks Jerry, that is exactly what I was talking about.  I think I'll mark the backside of mine in open position so I can make the curve match the lowers, then cut.  I'm going to try it soon and will report back on how the heat issue is affected.

Great info.

Hey Phantom the vents are in the center, lowers are upside down.  Maybe since you are in Australia?  

Sledge

Sledge,
You would be correct if the bike was in Perth buuutttt its in Houston waiting for all my TLC. Your photo’s do not look like the one’s on my SERG; are there different types of lowers?

[Sledge]

Sledge,
You would be correct if the bike was in Perth buuutttt its in Houston waiting for all my TLC. Your photo’s do not look like the one’s on my SERG; are there different types of lowers?

Hey Phantom I'm pretty sure they are the same part for ultra or roadglide.  The one in the closed pic above is upside down, it is the right one.  If you look from the front of the bike it will be on the left with the vent towards the engine.

Timo:  I think you are right.  I sold my unvented ones a while back and the whole vent area was a smooth angled intake for air.  It worked on mine a lot better than the one with the vents.  I remember when the the vents began to appear from 3rd parties at first as retrofits to fill a market niche, then the moco adopted (stole) the idea to make money imo.

Sledge