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Gentlemen:

I was looking for some of the expert advice the LML is known for as to the
idea of using Magnum or one of the similar engine mod firms to tune the TSIO
550 engine.

As you know they change the cam, tune the ports and increase the compression
with different pistons, ceramic coating etc.  

The benefit is increased horsepower (400 HP) and a smoother engine.

I wonder if anyone has an opinion as to the value of this mod and whether it
hurts reliability.   Also I wonder if the increased HP really does any good
since in cruise we fly at 65% anyway?

Any thoughts?

Dave
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LML website:   http://www.olsusa.com/mkaye/maillist.html
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Please send your photos and drawings to marvkaye@olsusa.com.
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