914 manifold pressure?
in 912 / 914 Technical Questions
5 years ago
Hey y’all,
I’ve seen documented by Rotax that the 914 is able to maintain 115 HP up to 8,000 FT pressure altitude and a 100 HP up to 16,000 FT pressure altitude.
After having flown behind one for a quite a few hours at various altitudes in Idaho, I’m noticing I can only get 40” of manifold around 3,000 FT MSL. At 4,800 FT MSL it drops off to about 38” of manifold. At 6,500 FT MSL I was only getting 34.5”.
Shouldn’t you see 40” of manifold at 100% throttle setting (115 HP) at 6,500 FT MSL? Could airbox temperature be limiting this? Thanks!
I’ve seen documented by Rotax that the 914 is able to maintain 115 HP up to 8,000 FT pressure altitude and a 100 HP up to 16,000 FT pressure altitude.
After having flown behind one for a quite a few hours at various altitudes in Idaho, I’m noticing I can only get 40” of manifold around 3,000 FT MSL. At 4,800 FT MSL it drops off to about 38” of manifold. At 6,500 FT MSL I was only getting 34.5”.
Shouldn’t you see 40” of manifold at 100% throttle setting (115 HP) at 6,500 FT MSL? Could airbox temperature be limiting this? Thanks!
