So, I don t know.  We need some data.  Tracy is guessing that his engine puts out 180hp. Could be; but I m guessing we don t know what it is, and it could just as likely be 165.

Al

 

Al,

 meant to ask you earlier if you had any fuel flow data during the dyno pulls.  Assuming we know approx. BSFC, we can make a guess on HP based on fuel flow.  Sure hope I'm making more than 165 because if that's all it is, my BSFC works out to .73, which would be incredibly lousy.  At best power mixture and WOT the rotary is said to be around .65 which works out to 185 HP at 20 GPH.    I ran well below best power mixture in the Sun 100 race (16.5 GPH) and stayed ahead of half the 180 HP RVs.  They all looked pretty clean aerodynamically compared to my ship.

Here's another possible indicator.  When I was running an untuned carburetor manifold, maximum fuel burn was 16 GPH at best power mixture.  With my tuned EFI manifold that number went up to 20.  Not as good as a dyno number but definitely indicates that the engine is pumping more air through it.

 

Tracy