OK I grabbed some pictures – they are not great and mainly of the port side which is disassembled.
Ignore all the wiring hanging etc – its a work in progress and i’m stripping a lot out.
The exhaust loop sits about 24 inches at least above the waterline and I think is excessive as the main run to the rear has about a 6-8 inch drop over its length and being side exhaust is unlikely to have much run up it..
The mufflers are badly designed you can see the waterline in the input pipe which doesnt sit hugely below the turbo.. if you see the output pipe has been cut high – causing the high waterline – but I suspect that the output tube has been cut that high so that the water level is sufficient to blow through the pipes due to the volume of the upward and loop section. reduce that in size and the output pipe could sit lower (I think)
Each muffler is different.. due to the proximity of the exhaust.
There is a fall – but with the water level of the mufflers being where it is.. it doesnt help much.
The boat waterline is around the bottom of the input pipe, so self draining mufflers would only gain me an inch of water level or so in calm waters.
I’ll be starting a post about my options shortly asking for advice on which way to go.
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