VW radial engine

[cameron shorey]

How about a radial motor for an ultra light aircraft?
7 stock cylinders makes what? Approx 2800 cc.

Radial engine made with VW parts.
http://www.youtube.com/watch?feature=player_embedded&v=SyRJeZ6s8uM

[Zach Gomulka]

That's fookin incredible! Sounds great, love the exposed valve train.

Says 2086cc at the end. That's less than 300cc per hole, 85.5x52? I wonder why so small??

[Zach Gomulka]

Guess I'm the only one interested in this?!

On second look the cylinders appear to be factory 40hp. Most likely 77x64, factory VW bore/stroke.

[Taylor]

This is really cool!

[Brian Rogers]

Wow, wonder how the cam operates and how it's oiled. Neat engine.

[Neil Davies]

This sort of thing makes me feel really stupid. I'm not unintelligent, but I never would even have thought about making a radial engine, let alone gone out and done it!

[alex d]

this is beyond awesome

[steve_pugh]

How is the valve train oiled being all exposed like that?

[cameron shorey]

You can find a nice computer animation of a radial engine at Wikipedia. Shows how the cam and valve train work.
Radial engines can't use a regular sump type set-up, because half the engine is upside down. They usually use a dry sump type system, where one pump pushes the oil through the crank, to the bearings, and a second pump scavenges oil in the block and pumps it back to a tank.

Radial engine
http://en.wikipedia.org/wiki/Radial_engine