Lynn Hanover said:

 

The port timing on the Renesis appears to be quite timid. I would like to see a bit of a developement program for an aircraft specific engine with earlier opening and later closing of the intake port. Maintaining zero overlap is of no value in an airplane, and a big improvement can be had with just a die grinder.

 

 

 

 

Lynn,

 

You’ve probably forgotten more about engines that I will ever know!

 

Based on your quote above (I’m probably dangerous w/ a die grinder), but the kind of mods you are suggesting seem pretty straight forward.  (besides, if I screw it up, it only costs me a rotor housing ;)

 

My questions are:

 

Q1.  If you start to reshape intake ports on a Renesis, how much can you do before you get into the water jacket?

 

Q2.  In a well-engineered aircraft installation, how much HP is a Renesis making?  In and RX-8 they are supposed to make about 225 HP.  Are aircraft installations getting that much?

 

Q3. If mods that you suggest above are made to get intake/exhaust overlap, how much increase in HP can be expected in an aircraft installation?

 

 

Thanks for sharing your expertise

 

Jeff Luckey