Hi all,

I have a DA 50 in a 80" span CM PRO Extra 330. I had a canister type silencer made for it as our field is a bit noise sensitive.
Is the silencer restricting the power?

It has a Just Engines wooden prop 20x10 and run at @6200rpm, still being run in though, 32:1 on HR1 Bel ray oil. I think it may well be a little rich to protect it. There is very little amount of oil residue down the bottom of the fuz, an indication to me with my limited experience that it's running not too rich. Enough to wipe off with a hand wipe.

As far as elevation goes, it's 400ft absl and usually about 20'C.
Have a look at my exhaust and see if you think it's restricting the power at all. I think it might because it's very quiet, quieter that than some small .60 sized engines. These inlet and exhaust pipe measurements are ID, not OD.

The exhaust has one baffle mid way, it's a disk with holes drilled in it, don't know what size the holes are though.