On 6 May 2006 11:35:19 -0700, "nrp" wrote:

It appears the 200 HP injected engines all have tuned induction systems
for a little more power, too. And isn't here some point where they use
the angle valve cylinders to get a better combustion chamber shape? I
couldn't spot it though.

A 180 hp O-360 Lycoming has parallel valves, the 200 hp IO-360 has
angle valves. With the 540's the typical cut-off for parallel valve
heads is 250 hp.

An interesting list. Think of the documentation there must be at
Lycoming to support this many certified engines!

Indeed.

TC