| Author | Message | ||
     Brucelee |
Just received this from the Trojan guys. Comments so far: Fit is quite good. The scoop is a tad smaller than the left side and has to be to clear exhaust pipes. Still adds balance to bike by giving it a dual snout look from front on and from the saddle. Overall, it will bring a significant amount of air to the back cylinder, much more than the little stock scoop it replaces. The unit is fiberglass and unpainted. The upside is you can make it any color you want. The downside is the quality of the FG is good but not great. I would have preferred molded plastic but at least it was easy to paint. The test comes today, when I take it out for a long ride to see if it makes the cooling fan irrelevant. Will post on that later today. | ||
| Buelltroll |
pix pix pix  this one looks like it could suck up small animals and children | ||
| Midknyte |
don't mean a thing, if you don't got pix of your bling  | ||
| Brupska |
Is that right about 240 bones for one of those scoops. I just did the conversion. Man that is steep Lets see some pictures of it on the bike. brupska | ||
| Djkaplan |
The scoop looks cool in the catalog.  | ||
| Fullpower |
sorry, but that just looks wrong.why does one wish to scoop air at that point? | ||
| Hogs |
That Scoop will slow you DOWN :-))) I took my scoop off.! | ||
| Buelltroll |
Does look like it would be sucking HOT air right off the back of the header pipe. | ||
| Brucelee |
"Is that right about 240 bones for one of those scoops. I just did the conversion. Man that is steep Lets see some pictures of it on the bike. brupska" I will post some pics tomorrow. Yes, it IS steep but I could not find another elsewhere. "sorry, but that just looks wrong.why does one wish to scoop air at that point?" It delivers the air to the back cylinder, just like the one on the other side. "Does look like it would be sucking HOT air right off the back of the header pipe " In this pic, yes, but I THINK that hot air won't really make it into the scoop. Moreover, if it does, it would be making it into the little scoop that I replaced. We will see if it actually helps or hinders on the whole cooling fan issue. "That Scoop will slow you DOWN :-))) I took my scoop off.!" I don't see how. Only in theory would be my best guess. If so, fine, the other scoop is also slowing me down! | ||
| Lightning_strikes_now |
Guys, the single air scoop design on the stock XB's has a purpose. The engine is cooling better than you think. The larger single air scoop blows air on the rear cylinder creating a sworling turbulance in the engine cavity of the frame. Heat transfer is drastically increased by this sworling turbulance. The hot air then exits through the fan port and a small amount under the set. If you put a large air scoop on the other side of the engine, your creating a damming effect to the more equalized pressure in the engine cavity. The air then piles up around the rear cylinder with less sworl and movement. The additional air imput has nowhere to escape due to the limited exit area through the fan and seat. | ||
| Unibear12r |
Lightning may have a point. Sounds reasonable & Buell engineering has been good at that kind of thing. I'd like to see some factory data on this as I know just enough to get me into trouble. I'm fairly sure you'll loose fan effectiveness at low speed at least. Last summer when stuck in a mondo traffic jam in Vegas my 12R seemed to handle miles of slow speed (< 5mph) & 115 degree temps as good or better than the other bikes there. Even the water cools were cooking. Downside was the jet blast (high fan) under the seat would of cooked a turkey in about 15 minutes.  | ||
| Brucelee |
Your theory may or may not be correct. I am betting you are wrong. I will find out by way of the thermostatically controlled fan. If it runs more, you are right. If it runs less (or not at all) you are wrong. BTW- It already looks better IMHO! Since Buell put a small scoop on the right side, I am betting you are wrong. I am simply putting a bigger one there. Experience vs. theory. We will find out! "{Guys, the single air scoop design on the stock XB's has a purpose. The engine is cooling better than you think. The larger single air scoop blows air on the rear cylinder creating a sworling turbulance in the engine cavity of the frame. Heat transfer is drastically increased by this sworling turbulance. The hot air then exits through the fan port and a small amount under the set. If you put a large air scoop on the other side of the engine, your creating a damming effect to the more equalized pressure in the engine cavity. The air then piles up around the rear cylinder with less sworl and movement. The additional air imput has nowhere to escape due to the limited exit area through the fan and seat." | ||
| Unibear12r |
I've been interested in the larger right scoop for some time. I asked Al at American Sport Bike and he might be getting to it before long. It will likely cost less and I asked if he'd bring it out matching color to the left one. Perhaps if enough people ask for it that way? Still be fiberglass. I've also thought the close right scoop might be for EPA noise regs. Guessing. It may also be a compromise between normal & slow speed (of the bike) operation for the fan. I've messed just enough with airflow to know things are not always straightforward. You may find that you are blocking the airflow exit off the front cylinder and it gets hotter while the back gets cooler. Like I said I'm just smart enough to get into trouble.  I'm waiting to see what Al comes up with and it's way low on my way too long "to buy for" list. So in the meantime your the point of the spear Brucelee. I'd like to hear how it turns out! | ||
| Midknyte |
You may find that you are blocking the airflow exit off the front cylinder and it gets hotter while the back gets cooler. If that were the case, then you'd not have an indicator (since the fan would/might not run as much - but it's job is to the back cylinder. There is no front cylinder fan to indicate that it is running too hot). Would the front tube blue up if the front cylinder ran hot? | ||
| Unibear12r |
I had not put that much thought into it. I think you might be right on both accounts Midknyte but I'm outa my league here. That's the reason I'd like to see something technical on it. I just thought of something kinda interesting. A while back a debate on the XB front brake & wheel took place on Badweb and not too long after an in depth article on it appeared in Fuell I think. It really surprised me when shortly after the spring loaded belt tensioner started to be a hot topic here a very good article on the reasons for the stock belt/tensioner design came out. Not much talk of spring loading any more. | ||
| Trojan |
Not much talk of spring loading any more. It may not be a hot topic but they are still selling by the boat load. I think maybe it is less of an issue with the newer belts as they are stronger and more flexible, but for the early XB9 belts they are a big improvement and definitely prolong belt life. The other advantage that has not been discussed is that the sprung tensioner allows the suspension to work unhindered by excessive belt tension working against it. Ride quality is noticeably improved. Another can of worms opened  | ||
| Al_lighton |
I do have one coming out, the plug is complete and the tool is being made now. It will happen a lot faster than the seat cowl, too! Do I think it will result in reduced cooling for the front cylinder? Not significantly. It does shadow some of the front cylinder fins, making the air exit for those slightly more convoluted. But only a little bit more than the existing right side "scoop" already does, so I don't think that's a huge issue. Do I think it will result in increased cooling for the rear cylinder? Yes, it's purpose is to snag some air that would normally flow past the bike and duct it to the rear, just like the left side scoop. It will block radiation transfer from the pipe to the cylinders as well, which, for all I know, may be the purose fo the existing right side "scoop". I'm still contemplating whether the bottom surface of it that faces the pipe will get a reflective heat shielding material inlaid into it. If I can do that without damaging the aesthetics, I think it is a good thing, both for cooling and for decreasing the heat degradation of the CF material. I'll have one built with and without to see. Al | ||
| Hogs |
Heres a fix for the scoops, Do your outer air box mods for the looks and "PErformance" Lots more air into motor,... And Get rid of them Scoops not needed ( looks better without em) and make some ice cream with them...14,000 on bike now and scooped FREE...No plms... | ||
| Unibear12r |
I knew I'd draw some fire... But I'm really not trying too... Just trying to point out that some really smart people have been fooled by simplistic looking but highly engineered areas of these bikes. Buell must live by the motto High Technical-K.I.S.S. | ||
| Brucelee |
Lots of comments on what will happen. Why don't we see "what will happen!" If the fan runs less or not at all, we answer one area of speculation. I am not at all worried about the front cylinder cooling. It is after all, IN THE FRONT!  | ||
| Unibear12r |
Not thinking of blocking air to the front but that the air from the front cylinder has to go somewhere after. If the larger right scoop creates a high pressure area around the rear cylinder (in an enclosed system) and stacks up at the fan you've just created a dead air space at the front cylinder. Hogs point can be valid too. | ||
| Unibear12r |
I'm with you Brucelee just pointing out possibilities. | ||
| Hogs |
I have ran OLD panheads,shovelheads, been around ppl. running BIG inch motors as I have also 5 inch stroker 1701.cc`s ported ,polished HUGE piston speed here, etc. etc.no scoops NO over heat plms., Now maybe if you run in the desert in "Traffic" 100 degs.+++ you will OVERHEAT ,BUT scoops will not help you there anyways, MY two cents is Buell needed the scoop to "scoop" the air up for injection not for cooling cosemtic jumble jumble garbage ... extra baggage loose the scoops.. Pardon my spelling..! Now go make that IceCream.!I Like Butterscotch.! | ||
| Djkaplan |
Jeez, let the poor guy enjoy his air scoop... | ||
| Hogs |
I`m sorry ...Enjoy your scoop...! | ||
| Glitch |
I'm thinkin' Hogs' big inch bikes were in a frame with nothing around them like say a big fuel tank/frame. There is a lot of our engine covered by the tank/frame, hence the fan. Bruce, I'll bet you like the scoop just as much as you thought you would when you ordered it. Since the bike has that handy dandy fan, I'll bet the addition of that new scoop won't harm anything. | ||
| Dcmortalcoil |
On the other hand, it looks like the scoop can second as a slider - just make it super strong. | ||
| Unibear12r |
Trojan, no can of worms from me. My comment above was not aimed at any parts house or the quality of any of their products. In fact it's obvious that all the sponsors like you & Al at American Sport Bike are working hard to get us the items we want & need. Thank you all. | ||
| Martin |
That Dutch site has some hilarious personal slogans on it. | ||
| Brucelee |
New scoop from the front. I took the first ride which was encouraging. It was pretty cool out but I ran the bike hard. Normally, the fan would run when I shut the bike down. It did not. I need a warmer day to prove conclusively. Love the look though. Now, if only the front cylinder hadn't melted! Oh, yes and at one point I got airborne from the lift from the second scoop!  |
