Originally Posted by
1967brutus
I have never thought about that, but I have to say I am using virtually exclusively DuBro tanks (for no other reason than that they are easiest availlable to me), and they are pretty stiff.
But I would not expect that to be a factor, muffler pressure is about 0,05~0,07 bar at peak.
Can you post a vid of how your engine is running? Pics tell more than a 1000 words, so videos tell even more than that.
Sorry Bert, I'm not set up with fast internet here, just a wireless hotspot with marginal cell phone reception. It routinely takes 30 seconds just to refresh this page.