| Author | Message | ||
     Duggram |
On a race 1125 would it be a problem to remove the cooling fans? What problems would it create? What would you gain? | ||
| Carbonbigfoot |
The only reason I would remove the stock fans is to install bigger ones. R | ||
| Banana_man |
I seam to remember a company who was making a fairing for this bike and I am sure he said he removed the fans and the engine ran colder because the fans restricted the air flow. Does anyone else remember that thread? | ||
| Duggram |
Ya, I think that was the guy that makes the side fairings, Alex, at Flexiglass. But I can't remember the details. He had a post here about how much weight you can save by removing the fans. I just can't remember the details. | ||
| Mikellyjo |
For a race application it seems to make sense, since your not sitting at idle very long you don't need the forced air of the fans pulling. So I would agree that the removing the fans might allow for more cooling air through the radiators. I would assume, like a car the fan doesn't to much good at speed, hence the fan clutch on cars of old. Of course a car radiator isn't mounted side ways inside a cowling...and I would say the surface area to cooling ratio is greater on a car. As for gains, I guess the fans would go into the pile of other "accessories" removed to reduce weight. Does anybody know what the savings would be...I'm thinking a pound or two each. Not much but maybe after enough is taken off you're starting to make a difference...performance exhaust, fans, seat, reflectors lighting...and lets not forget those pesky little stickers. That has to be at least 15-20 pounds. For you racers, it might be worth a lap or two just to find out. All in the name of advancing the sport. All that being said...what do you think is under the cowling of that pretty Geico race bike on the Buell website?   | ||
| P_squared |
15 lb. reduction. Here's the link where the details are discussed: http://www.badweatherbikers.com/buell/messages/158 664/380869.html | ||
| Mikellyjo |
Man...this forum has touched on almost every cnoncevable subject... Here is the meat and potato's from that thread. Ok I'll try to answer all the questions regarding the new 1125 bodywork.The nose cone is exactly the same as stock with the headlight holes filled in for race purpose, tail is the same as stock and the undertail is the same but we streamlined it so it has a flat underside and two mounting points where your stock tail lights would normally mount. The sides without ram air replace the outer stock pods and give it the full bodywork look, the ram air sides are shaped a little different and work like this, you use your stock rads, you remove the fan and all the brackets and thats where you get the 15 pound savings from, the inside of the ram air sides hold one side of the rad and the inside scoop sandwiches the rad and holds it there, the scoop is a double sided piece that rams the air through the rad and exits it out the side. The first time the ruthless racing team tried it the bike ran 20 degress cooler than the bike without the ram air system, so much so they had to remap the fuel system for the change in temp. The fin in the middle of the exit vent is just a r&d deal as we'er playing with the deflection angles so its different every time they go out. The ones we are releasing don't have the fins. To install the ram air system you need no extra parts at all,after removing all the brackets and fans remove the lower rad hose slip in the inside scoop mount it to your stock mounts and by the way everything uses your stock mounts. Re attach your rad hose and put on the ram air side. The belly has changed since the pic was taken and we refit it to the sarron pipe, the third pipe this season so things are really on a ongoing r&d program as only the buell factory and the canadian buell race team have them at the present moment.I wanted to get things a little more r&d'd before we let them go but with the cooling difference we have been a little busy with requests. The tank is the same as stock, the team complained the brakes were getting hot towards the end of the race so we applied a side vent to direct air to the caliper, the lip on the top of thge fender is to direct more air towards the air intake up under the triple tree's. The ram air system consists of a left and right side at 300 each and you need a left and a right inside scoop to complete the system for a total of 1100.00 its for race application only you wouldn't need the system for street use or track days. The price reflects its still a r&d ongoing program. We also make a seat pan that replaces your stock seat for that superbike feel of a hard seat that you put your own foam on. I'll get more pics on our site as we finalize production versions So it appears to work with the ram air body work...maybe not so much with the stock pods. | ||
| Anonymous |
You can not remove the fans for a race application with stock bodywork. You can improve high-speed cooling by trimming the fan shrouds and mounting the stock fans directly to the radiators with V-Rod plastic fan fasteners. | ||
| Fresnobuell |
The pods seem like an odd design with no outlet in the rear of the pod. Only the fans seem to move air out of the pod. is there some engineering principle that I am missing here? | ||
| Rainman1ne |
I would guess that the purpose of that is to force the air through the radiator instead of over it | ||
| Ccryder |
Justin: Go figure, the collective brain trust of Buell might just know something about thermodynamics and engineering. Yes Harlan, you might be missing a little something. Just from my limited review of the pods, somebody spent a LOT CFD hours developing this design. Time2Run Neil S. |
