| Author | Message | ||
     Brother_in_buells |
I was sitting in the garage the other day ,daydreaming and looking at the buells. and thought what about an rotax engine in tuber frame with xb swingarm,fork and wheels. So i,am curios is this already done? If the answer is yes ,is there any info or pictures about this subject?? let,s hear !  | ||
| Cyclonemduece |
not yet.... | ||
| Fahren |
An M2 or X1 swingarm would give you the same effect and be a lot easier to fit than an xb (although some have done it). No idea how the motor mount points would change, or other stuff like oil capacity, routing of lines, exhaust, etc. | ||
| Goldtooth |
yeah but oil in the swingarm would be much cooler and you could get rid of the under slung shock. that would be a sick bike. | ||
| Guell |
ughh, guys, the 1125r doesnt use the oil in the swingarm deal. The oil is contained in the engine im pretty sure. | ||
| Goldtooth |
either way the xb swingarm/shock is cooler. the rotax engine doesn't have a oil tank? | ||
| Guell |
I think fabbing up your own tubular swingarm would be a heck of a lot cooler than using a xb swingarm if its not going to contain oil But thats just my opinion. The xb swingarm/rear shock would be a big improvement either way (Message edited by Guell on January 10, 2010) | ||
| Hybridmomentspass |
No, the Helicon does not have an oil tank, all oil is, like posted above, contained in the engine. | ||
| Fahren |
I guess you'd just have to see which location for a shock works better with the size/shape of the Rotax. Get a beautiful, color coordinated coil spring on a Works or Penske tuber shock and it would be fine. I love that look. | ||
| Skntpig |
The biggest problem is where to put the fuel with the large airbox those 61mm throttle bodies require. Sounds like a great project. Do it! | ||
| Fahren |
What he said^^^^ | ||
| Xl1200r |
Also what I was thinking. This is the kind of project that someone would do just for the sake of doing it. The 1125 swingarm is pretty close to the XB but without an oil tank (the 1125 is a dry sump engine, just the sump is cast into the engine cases). The throttle bodies require an airbox where the tuber gas tank is, meaning you'd have to move the gas somewhere else, like off to the sides... kind of like an 1125. XB and 1125 wheels are the same. 1125 Suspension is a little better than the XB components (especially the front fork). So, at the end of the day, you may as well just figure out how to get tuber bodywork on an 1125 chassis. | ||
| V74 |
where would you put the radiators ? i doubt you could keep the under slung shock as i bet theres no place on the engine to put a front shock mount, your best bet would be to build your own tube style frame to fit the engine,rear swingarm,shock,fuel tank,etc, photo shop mock up anyone ? | ||
| Hootowl |
The Helicon engine is a dry sump, unlike most other engines that carry their oil internally. So while it does not have an external tank like the tubers and XB line, it does have one. | ||
| Skntpig |
Helicon is a dry sump. It has the oil inside the motor case but doesn't hold all the oil in the same area as the crank. The 1125 has 2 oil drain plugs, one on each side of the motor. From BMC website: http://www.buell.com/en_us/bikes/sport/1125R/engin eering-and-design/helicon-engine.asp INTEGRATED DRY SUMP & OIL RESERVOIR: Located in the lower crankcase, the dry sump oil system contributes to mass centralization by keeping fluids low. It also reduces weight by eliminating the need for an external oil reservoir. Tubers just have a separate tank but work similarly. | ||
| Natexlh1000 |
I would doubt that the Rotax engine cases are beefy enough to act as a chassis member. | ||
| V74 |
tube frame engines only support the swing arm,otherwise the don't act as a chassis member,with the 1125 how is the engine mounted to the frame(is it the same as an XB)and how is the swing arm mounted? you would have to use the 1125 swing arm and fab a shock mount on the tube frame as the drive is on the right,making the tube frame and XB swing arms unusable | ||
| Natexlh1000 |
The tuber's engine is the lynch pin in the chassis. It holds the front tube frame to the swingarm. Without the engine, the rear shock wouldn't be connected to anything in the front. In order to adapt some odd engine to a tuber frame, a cheater subframe would have to be fabbed up the mimic the original H-D lump. We already had arelated discussion on this board about fitting a snowmobile engine. That sounds like more fun to me  | ||
| V74 |
i would love to see an EBR 1190rr engine in a tube frame,what a buell that would be | ||
| Brother_in_buells |
Thanks guy,s for your input on this subject! I think i start looking for some used parts!  | ||
| V74 |
having looked at some photos of an 1125 engine it looks like the swing arm is mounted to the rear of the engine,so first line up the engine/swing arm under a tube frame, next it looks like the engine would have to be solidly mounted to the frame,engine plates and brackets and rear shock mounts would have to be made,not sure if the frame would take the stress, the top of the throttle bodies would be close to the tank,there could be no room for air filters, radiator would have to go just forward of the crank cases behind the front wheel,this may not be able to provide enough cooling so another place to put one would be under the seat unit, exhaust system would more than likely have to be modified to miss the side rails of the frame, the battery would have to be mounted in the seat unit like on an XB if it was something i must do and could afford it i would give engine/swing arm,tank,battery,exhaust,shock and front forks to someone like spondon and have them make me a frame,far easier than adapting one,but it would be a great challenge to do it, | ||
| Scm2 |
It's easy. Buy an 1125r, A tuber gas tank and headlight run some cooling ducts and you are done. | ||
| Joesbuell |
Since I blew up my Mutant I have thought of doing something with the 1125R/CR engine....Not out of my head yet either | ||
| V74 |
if anyone can do it its you | ||
| No_rice |
Since I blew up my Mutant I have thought of doing something with the 1125R/CR engine....Not out of my head yet either what?!?! you blew it up? i musta missed that. tell me it will live again... | ||
| Joesbuell |
Yeah Tim I holed the rear piston at my track day! The pics are on my face book page. It will live again but not for some time as the rebuild is gonna be HUGE $$$$$$. I'm just lucky I've still got my Uly to satisfy my Buell shenanigans!  | ||
| Joesbuell |
Here's me on my mates CR, I'd love this engine in my Mutant!  | ||
| No_rice |
that always sucks! atleast there is a plan of attack. and yes a tubeframe xb 1125 would be sweet! | ||
| Joesbuell |
Seriously considering McGyvering an 1125R/CR engine with a Ducati 1098 swing arm and wheel into the Mutant....Watch this space Just need some cash!!!    | ||
| The_italian_job |
Jodie, if you like the single sided swingarm, Ram Italia makes one for tubers. it is not listed on their website, but my friend in Italy put one of those on his S1, it is sweet! |
