V twin BMW

R85/8 · Post by **R85/8** » Sat Sep 03, 2011 8:38 am

Brilliant! any links?

This looks like the sort of person who would have no trouble popping out a 120º V twin BMW motor...

Deleted User 72 · Post by **Deleted User 72** » Sat Sep 03, 2011 5:41 pm

No link. I saved that one to my vault some time back.

the quinner · Post by **the quinner** » Sat Sep 03, 2011 6:33 pm

Fallert made a bevel drive "V twin" BMW that was something like a 176* or 178* "V"...it looked like a flat twin, but technically was a (very)wide V.

edit...I was wrong...here's the story from "BMW Racing Motorcycles the Mastery of Speed" by Laurel C.Allen and Mark Gardiner...

"...handful of machines built by Werner Fallert. Fallert's frame was a more conventional-looking unit, but his motors eschewed almost all factory components. Taking little more than inspiration from an R100RS motor, Fallert converted it from a two-valve-per-cylinder OHV design to a four-valve overhead cam unit. Like the old works racers, his cams were bevel-driven. Where Krauser and many others had improved ground clearance by raising the motor, shortening the cylinders, and chamfering the valve covers, Fallert actually changed the cylinder axes, turning the motor into a 170-degree shallow vee..."

Deleted User 62 · Post by **Deleted User 62** » Sat Sep 03, 2011 7:54 pm

Could this be it?

better picture of it here:

mattcfish · Post by **mattcfish** » Sun Sep 04, 2011 1:02 am

Native /5 wrote:
chasbmw wrote:I ha seen pics of a three cylinder BMW engine, mounted on the front of a Morgan type 3 wheeler.
Did it look like this?

3 cams?

chasbmw · Post by **chasbmw** » Sun Sep 04, 2011 12:35 pm

That's it, bit of a monster

enigmaT120 · Post by **enigmaT120** » Tue Sep 06, 2011 1:49 pm

A long time ago I read an article in The Classic Motorcycle about a guy who converted a flat twin into a V twin, but I thought he started with a Douglas. I didn't see the point but was impressed with his fabrication skills. With all of the work involved I don't understand why he didn't just make a motor from scratch, if that's what he wanted.

chasbmw · Post by **chasbmw** » Tue Sep 06, 2011 3:49 pm

Someone made a Douglas flat 4 with the cylinders stacked. Only 2 carbs with very convoluted carb plumbing, I'll dig out some pics, looked very well made, but have not heard it running

Garnet · Post by **Garnet** » Tue Sep 06, 2011 5:06 pm

chasbmw wrote:Someone made a Douglas flat 4 with the cylinders stacked. Only 2 carbs with very convoluted carb plumbing, I'll dig out some pics, looked very well made, but have not heard it running

Didn't Brough build some thing like that once?

chasbmw · Post by **chasbmw** » Tue Sep 06, 2011 5:55 pm

I have a feeling that brough made something using a car engine?

Here is the homemade Douglas. I love the way that this insane bike really looks like a real Douglas.

Boxerworks.com

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