In the last 6 month's I've rescured a gasoline-driven air compressor.
It gives ma 125PSI and a volume that seems to fit my needs
(translation - so far, so good); unfortunately it's LOUD. I replaced
the muffler on the 5.5 hp Honda engine but it's still LOUD.
Short of putting it in an insulated box, or converting it to electric,
anyone have any ideas how I might quiet it? - Mike