Design article lawrencemd, dave gerr has a few articles at the professional boatbuilder magazine, that are accessible online, covering almost every aspect of marine exhaust you're likely to find. dave is the head of westlawn's (correspondence) marine design program and a practicing marine designer/engineer/architect @ gerr marine.. Marine exhaust systems are an important, and often overlooked, part of an inboard marine diesel engine most recreational vessels have a ‘wet’ exhaust system. this means that salt water is injected at the riser, which is the outlet from the exhaust manifold.. Centek’s engineering staff has more than 80 years of marine wet exhaust system design and innovation experience. centek is the only registered engineering firm to offer fiberglass exhaust components that are lloyd’s register type approved and meet or exceed abyc-p1 standards..
The science of muffler design revolves around three major areas: 1) sound, 2) flow, 3) and durability. for the team at billy boat exhaust, we have taken our 25 years of experience, our racing background, and our practical approach to design a product that has a signature tone and provides a lifetime of driving enjoyment.. Boat systems: general, exhaust design opinions, looked at a boat yesterday that had an unusual exhaust design . i would welcome any opinion on back pressure, inherent safety, etc. engine is a 170hp 4lh-dte, stock elbow dumping straight down to exhaust hose (4"? didn´t measure) that runs forward under the engine to a water lift pot, goes up from there to a high loop that is 2 ft above the deck. Exhaust basics. there are two basic types of boat exhaust system: wet ones and dry ones. some large commercial vessels have dry exhausts with engine exhaust gases exiting upwards through a funnel, or funnels. many small commercial vessels, particularly fishing boats, also do it this way as it's cheap and simple..
