Barnhart wrote:

Paul,

How about some more details on your 250 hp turbo 13b?  How many rpms to get to 250 hp?  What do you plan on cruising at for rpm and hp?

Barny

Well it depends on if I get the variable pitch prop. In that case you increase the pitch
and slow the RPM to get better BSFC. My goal is 200 MPH at about 5000 RPM
at 12,000 feet roughly. In that ball park. I figure a max of 20 psi boost.

It all depends on turbine inlet temp. Something like 1500-1600 degrees F should 
be a max. Since my psru is 2.17:1 I don't expect more than about 6500 RPM
20 psi boost and 250 HP at sea level. People tell me this is quite doable.

Paul Lamar
 
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