| Author | Message | ||
     Thunderbox |
So because the fan doesnt come on as much you think this is better? Now that the engine doesn't get up to it's proper temperature that is not a good thing. | ||
| Blake |
"Neither. Non-sponsor. Don't want to get in trouble for posting. PM me if you want info." <sigh>  There is no policy on this board that would hinder folks from sharing information about modifications they have made to their motorcycles. That is what this board is ALL about, sharing information and new ideas. The policy that you seem to be confused about is the one prohibiting the promotion/advertising/marketing of non-sponsors or their wares. A simple statement like "that is the scoop from so-and-so" does not constitute promotional language. Especially not if in response to a direct inquiry. If however you were to announce out of the blue, check this out; this is the best scoop and you should check it out at so-and-so's web site www.so-and-so.com - especially if you were to do so repeatedly, then yes that might get you a warning about non-sponsor advertising. I hope that clears up the issue for you.  | ||
| Blake |
BTW, I think that your Uly's header wrap looks fantastic. | ||
| Lowflyer |
So, now we don't know if the heat trapped by the header wrap is responsible for keeping the fan from running or if it is indeed the extra scoop. I agree, the header wrap is awesome! Blake, I went to www.so-and-so.com and they are not selling scoops.   | ||
| Electraglider_1997 |
Were those pipes wrapped without taking them off? | ||
| Aeholton |
So because the fan doesnt come on as much you think this is better? Now that the engine doesn't get up to it's proper temperature that is not a good thing. It's a good thing that I don't have the fan blowing hot air on the back of my leg. I don't believe that it has any trouble running at proper temperature (espescially in the 90+ degree Florida weather). A simple statement like "that is the scoop from so-and-so" does not constitute promotional language. Especially not if in response to a direct inquiry. In that case the scoops are made by fellow BadWebber Robertoxb9 (http://www.badweatherbikers.com/cgibin/discus/board-profile.cgi?action=view_prof ile&profile=robertoxb9-users). I would have gladly bought one from a site sponsor, but no one offers a plastic one that looks like the stock left side. They only offer fiberglass (which requires paint) or carbonfiber (which would require buying the right side to match). | ||
| Aeholton |
Were those pipes wrapped without taking them off? Yes. I started at the front cylinder wrapping down to where the 2 pipes come together continuing down to just a couple of inches above the muffler clamp, then back up to where they split and back toward the rear cylinder, then back down to where they come together and back up the front pipe to the front cylinder. This way they it is a complete double layer wrap. Thanks to Glitch for posting this method. | ||
| 44mag |
How much did the scoop cost? | ||
| Aeholton |
It's not cheap. I paid around $260 including shipping from Amsterdam. | ||
| Bienhoabob |
I just received my right side scoop from American Sport Bike. They now have a fiberglass product ($229)vs the initial carbon fiber product.($269) You do have to paint the fiberglass scoop. Thunderbox: I read your previous posts on why not to get a right side scoop. Help me out here. The fan comes on when the temps exceed a certain degree level. Engine is running to hot. If the scoop allows more air flow to the rear cylinder, why is this such a bad thing? I understand if its cold outside, you need to have the engine heat up. But when the temps are in the 90's-100's, isn't this a good thing? I plan on installing mine and leaving it on for the hot months. July and August and maybe if I do a long trip. | ||
| 44mag |
I wonder if the stock right side panel is required to help direct air from the fan over the front cylinder head when idling in traffic or moving slow. I can't think of any other reason why Buell would not include a right side scoop in the stock configuration. Any opinions? | ||
| Aeholton |
I wonder if the stock right side panel is required to help direct air from the fan over the front cylinder head when idling in traffic or moving slow. The side of the aftermarket right side air scoop is not blocking air from flowing between it and the front cylinder head. All it is doing is adding more air to the rear head. If anything, it may draw more air back due to the low pressure/high speed air exiting the scoop. I can't think of any other reason why Buell would not include a right side scoop in the stock configuration. Any opinions? Buell has never been big on symmetry. Just look at the old tube frame Buells. They didn't feel it was necessary. I like the look and as an added bonus I get to hear the uninterrupted (by the fan) sweet note of the V-twin lump. | ||
| Pupu |
i have the trojan one, and my fan only come on when i turn off the bike, i have not noticed it running when i was riding the bike as it used to do all the time. i personally bought it for looks, which in my opinion, the trojan one is the best looking one. that plastic one is nice cuz it has the seam in it, but i was gonna cut a seam into mine, or bondo and paint the stock one. trojans is the only one that doesnt look to "round" to me. but my bike does not run any differently than it did before, or at least i can not tell any difference. so i dont really think it has an effect on the bike whatsoever other than the fan running less. | ||
| Xbimmer |
44mag I'm sure what you meant to say was pulling air from the front cylinder head when idling or in slow traffic, which leads be to repeat: Why doesn't the fan work in reverse from the way it works now? | ||
| Lorazepam |
Xbimmer, the fan would have to compete with the natural flow of air when moving. Very counter productive. I can tell when my fan kicks on, my leg cools off a bit. I also wrapped my headers. It was easy to do, and when my fan finally died its slow painful death this weekend, I think it made a difference. Kudos to HD Buell of youngstown, OH. They got me in today, and replaced the fan in a couple hours. The tech that does buell is really into them, and seems to know his stuff. He is also a fellow rider. The staff is friendly and they welcome buell customers. | ||
| Teeps |
44mag Posted on Monday, July 17, 2006 I wonder if the stock right side panel is required to help direct air from the fan over the front cylinder head when idling in traffic or moving slow. I can't think of any other reason why Buell would not include a right side scoop in the stock configuration. Any opinions? Federal E.P.A. Emissions compliance is the ONLY reason I can think of for: no right side Ram Air Scoop and the shrieking fan. | ||
| Lowflyer |
Laminar flow of air across the rear jug is what I believe is the reason for the original design. Right side scoop disrupts the airflow and likely increases air pressure around the rear jug and just forward of the fan. Besides, it's unnecessary because the bike has to have a fan for low speeds anyway. | ||
| Thunderbox |
Bienhoabob asked me "Thunderbox: I read your previous posts on why not to get a right side scoop. Help me out here. The fan comes on when the temps exceed a certain degree level. Engine is running to hot. If the scoop allows more air flow to the rear cylinder, why is this such a bad thing? I understand if its cold outside, you need to have the engine heat up. But when the temps are in the 90's-100's, isn't this a good thing?" If you had a car and you removed the thermostat do you think it would run at it's required temperature. No it wouldn't, providing all else was well it would run too cool. Adding a second scoop is doing the same thing. Your engine will be overcooled 90% of the time. The only time it won't be is in slow or stop and go traffic. The scoop makes no difference under those conditions anyway. The fan doesn't come on when the bike overheats it comes on when the engine reaches the temp it should be at. When the fan comes on it doesn't get any hotter. After riding for 17 days 7800 kms with 2 up and 100 lbs of luggage with speeds often above 80 mph I didn't once put my hand on the swing arm (oil tank) and find it to hot to leave my hand on there. There is way too much worry and concerne about the fan. It does not come on when the bike overheats it comes on when the temperature is perfect for the engine. It is a temp regulating device. The emphasis on regulating. It comes on when the temperature needs to be limited and goes off when the engine is running too cold. The heat on the right leg has everything to do with the exhaust heat and nothing to do with the engine temperature. Now after saying all this do any of you know of a Uly running too hot that the engine overheated under normal usage? Not I. | ||
| Bosh |
Hmmm.... so the front cylinder runs too cold all the time?? | ||
| Bloochdog |
I am wondering about header wrap again... would it hurt to insulate header down to the muff.? | ||
| Thunderbox |
No, but there is no fan for the frt cylinder. That is also why the timing is different for the front cylinder. Several other things also but hey you have already made up your mind because Buell knows nothing about their bikes and you apparently do. | ||
| Thunderbox |
Putting a wrap on a header will change the performance characteristic somewhat. Exhaust impulses travel at a certain speed within the header. That speed is determined by air temperature. The hotter the temp the faster the exhaust impulses travel. Wrapping the exhaust will change that speed and may improve or lower performance only a dyno will tell for sure. I don't think it will make much of a difference but you never know till you measure it properly. (Message edited by thunderbox on July 18, 2006) | ||
| Brad1445 |
Thunderbox ; There is way too much worry and concern about the fan. It does not come on when the bike overheats it comes on when the temperature is perfect for the engine. I doubt any would be concerned if it did not cause strange looks from people you pass.} | ||
| Thunderbox |
Well Brad if you are worried about what people think about your fan you may wish to rethink the purchase of the Buell because they are generally not thought about in a positive light by 95% of all motorcycle riders. But us few who own them know a little more than they do about the Buell and the fan we so love to hate. LOL | ||
| Lowflyer |
"I doubt any would be concerned if it did not cause strange looks from people you pass." I usually don't look at people that I pass. Even if I did, I don't care what look they carry on their face. Problem solved. | ||
| Smcnamara |
C'mon Lowflyer... You know you can't pass anybody.  | ||
| Lowflyer |
Well, I wouldn't know if I passed anybody anyway since I don't look at them. | ||
| Smcnamara |
We know. And you didn't.....  | ||
| 44mag |
Aeholton, I was thinking that the right side panel might be used to direct the flow of air (from the fan) over the front head at idle. Even though the right scoop won't restrict the air flow, it might not direct it in the same way. Just speculating. Dr. Greg is a Mechanical engineering professor ... if he has a background in heat transfer, maybe he can shed some light ... or give it to one of his graduate students as a homework assignment. | ||
| Bosh |
"you have already made up your mind because Buell knows nothing about their bikes and you apparently do." I wasn't implying that it's Buell who doesn't know what they are talking about.  Just kidding. Your point is taken that the bike isn't overheating just because the fan is running. I think most people here know that. My perception is most folks that have bought or are about to buy a right side scoop are trying to keep the fan from running as much because we don't like to hear the dang thing. Does the bike need the RS scoop? Nope, the fan does its job well. Would a RS scoop be nice if it keeps the fan from running as much? IMHO heck yea! Will a RS scoop over cool the rear cylinder 90% of the time? I don't think so. An air cooled engine is designed to operate over a wide range of temperatures. It's highly unlikely that adding an extra air scoop that puts ambient temperature air on a cylinder will get you outside of the design parameters. An additional benefit is in the event of a fan failure you are less likely to over heat the engine. |
