stephenm27
Active Member
I had the same Kohler 5kw generator in my previous boat equipped with the factory sound shield and, subjectively speaking, it wasn't as quiet as the "unshielded" one I have now in the 310. The main difference that I attribute the improvement to is the length of post-muffler exhaust hose in the 310. Being that our generator is at the forward bulkhead, there is at least 6-8 linear feet of wet exhaust between the muffler and the hull exit. On the previous boat, this distance was only approx 18 inches. Clearly, the exhaust path is an acoustic conduit and the shorter it is, the more efficient it is...
With the aft-mounted generator, how far is it from muffler to thru-hull fitting?
With the aft-mounted generator, how far is it from muffler to thru-hull fitting?