I may not be understanding the setup with this system, but it appears that filtered air is gained from inside the hot end of the cowling.  With this arrangement I’d be most concerned with the effect on the power produced when you need power the most – at takeoff.   I have no idea what the temperatures might be but it seems as though they’d be significantly higher than ambient.  50°, 100°, 150° more?  This has got to have an adverse effect on the power output.  Some other questions that come to mind is:  1.  what about the possibility of detonation with really “hot” induction air when taking off on a hot day?  2. What is the effect on the mixture ratio when inducting hot air ?  Wouldn’t you have an extremely rich mixture for takeoff?

I may be way off base, but the effects during takeoff of this system could be catastrophic.  I personally would want to get some more information before committing to this induction setup.

To fix this, possibly, the filtered air could be baffled to be in the cold air section of the cowl.  Maybe put a chamber around the filter and duct cold air from the cold side of the cowl.  Just thoughts...


Hal Woodruff