Tony's Tips ARTICLE DATE: 10/01/2006
Marine Exhaust Systems
 
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Introduction Exhaust Size Designing a System Design Failures Building a System Dry Exhaust
Underwater Exhaust Exhaust Images-1 Exhaust Images-2 Exhaust Images-3 Exhaust Images-4 Summary
Exhaust System Images - 1
Yanmar - 31 Bertram - Starboard Exhaust riser.
Cummins QSC 490 with V-drive, port side - 4" dry to 6" mixer. Very long 4" dry riser to adapt to current 6" wet lift muffler system.
Cummins QSC 490 - "Over the Top" dry riser for V-drive - 4" dry to 6" wet mixer.
Cummins QSB 380 Riser to mixer to custom 5" 40 Degree elbow. Cummins QSB 380 - 4" dry to 5" mixer.
Cummins QSC 490 with V-drive, starboard side - 4" dry to 6" mixer.
Cummins 670 QSM with 4" dry riser and 6" wet mixer. Tight 6 inch riser design - Had to clear engine combing.
Good and safe exhaust design.
New Custom WET MIXERS installed on old risers, 3" dry to 5" wet. Custom Wraps
Cummins QSM 670 - 4" dry to 6" mixer to custom 8" FRP elbow to existing 8" exhaust & muffler - Was under 25" H2O at WOT.
Cummins 350C 4" dry riser to 6" wet mixer with support. Combo exhaust and deck supports.
Vert tight Collection T - 6 inch to 8 inch to double 5 inch. Cummins QSC/QSL Turbo exhaust flange adaptation to 4" pipe weld 90's.
Cummins 6BTA 370 / 31 Bertram port engine - 4" dry to 5" wet mixer to Custom 5 to 6" FRP wet 90.
Cummins QSB 380 Port Riser to mixer to custom 5" 55 Degree elbow. This picture shows how well the "High Mount Turbo" option can lend itself to a simple exhaust system in a 25 Ft Bertram V-Drive set-up. This owner only wanted the best of everything and took unbelievable pride in this repower....
 
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For more information contact: tony@SBMar.com