View Full Version : BMW engines
On the main page "Gerrymath has some pictures of a BMW engine, would like to know what size engine that is , what the hp is , and what thrust he got and how he likes it. Also any other infor on BMW set ups.
04-06-2010, 01:16 AM
I think the engine is the R100, here's some details on a converted one for an Xair
Heres some details of the same engine used on a trike, I remember talking to the designer and he was having trouble with cooling. He said the engine was not the best in a pusher configuration.
A video of a BMW powered trike (different engine type):
04-06-2010, 07:10 AM
It is a r100 engine with dual plugs, 10x1 compression ported heads and 1.5 x 1 psru. As built it is 85 hp with lots of torque. It pulled 375 and I am still fine tunning the machine. These engines love rpm and can run all day at 6000 rpm with a max 0f 7200 rpm....I am so happy with it, four stroke pump gas, lots of parts, and as we know BMW started buisness by aircraft engines, I found many of these type of engines used in Europe, so I got tired of the mac and changed it. Best thing I ever done. the sound is like a b52 when you are in the seat
04-06-2010, 07:35 AM
Thank you, Vance
Thanks for all those links, they have a wealth of info in them.
Years ago I owned a BMW 600 cc , I think it was called either a R59 or R60, it's been a long time, but I think it had ball bearing mains and roller bearing rods, just not sure but if this is the case that is why they last so long and take the rpm. Someone more knowledgable on the newer machines might make some comments. In the 80 to 100 hp range and at posted weights this looks like a engine that should be given more consideration on our gyro's. It also looks like adapter kits and gear reduction conversions that have been tried and proven are available, just don't know if they are avaialble in US.
PS If you have ever heard a Beemer run you will fall in love with it
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