| Author | Message | ||
     Sarodude |
So we all now know that Rotax has developed a powerful, reasonably compact, and hopefully reliable watercooled v-twin suitable for sporting use. So, uh, er... Any thoughts on an air-cooled version of this new 72 degree engine? -Saro | ||
| 45_degrees |
It's not Rotax developed, it's Buell developed and Rotax built. It's Buell's engine, not Rotax's.  Makes the 60 degree Rotax look like an outdated dog turd lump. Haha... oh wait... that's another thread here... | ||
| Thelumox |
well...it would be two valves per cylinder, and make about 90-95 HP. | ||
| Sarodude |
Lumox- I'd guess that, at its current displacemen and redline, the motor would make closer to 120-125 crank hp if developed to a similar state of tune as the XBs. I only ask this because, aside from maintenance, the new motor / tranny seem to bring a LOT to the party even if ultimate power output isn't your only measure. It's pointless asking, I suppose. The anonymi can't comment on future products (understandably) and the best we can do is just throw guesses around. Maybe the question should be, would you prefer the current long stroke pushrod XB12 103 hp motor or an 1125 a/c 120 hp motor? -Saro | ||
| Diablo1 |
Why would anyone want an air-cooled version? Uncontrolled engine temps? Overheating in stop and go traffic? More noise? Lower power? More engine wear and less durability? Or do you not like the look of the radiator pods? | ||
| Gregtonn |
Diablo, Why would anyone want an air-cooled version? Uncontrolled engine temps? Overheating in stop and go traffic? More noise? Lower power? More engine wear and less durability? Or do you not like the look of the radiator pods? Maybe you should check out the "Air Cooled Engine Myths" thread.  | ||
| Stealthfighter |
i don´t want a air-cooled 72° version - i want a modern air-cooled 45° version of the thunderstorm-engine. i love the classic design, the fins, the potato-sound... i´m sure the helicon is a great motor (for a sportbike), but i´m to old-school for having it in a naked bike... | ||
| Diablo1 |
"Maybe you should check out the "Air Cooled Engine Myths" thread." Greggton: So are you saying that Buell made a mistake by specifying a water cooled motor from Rotax? Perhaps you should ask Anonymous why they specified water cooled. My }info comes from sources like Bosch automotive engineering handbooks. | ||
| Gregtonn |
Diablo, So are you saying that Buell made a mistake by specifying a water cooled motor from Rotax? Absolutely not! All of Buell's engines are excellent designs. I was just addressing your misconceptions about air cooled engines. G. | ||
| Gtmg |
"i don´t want a air-cooled 72° version - i want a modern air-cooled 45° version of the thunderstorm-engine. i love the classic design, the fins, the potato-sound... " Though I have a 2006 Uly I think Buell has given us this with the updates in the 2008 Thunderstorm engine. There are some big deal improvements here. |
