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….
Cummins QSB – 4″ dry riser to 5″ wet mixer to 6″ factory lift muffler to 6″ side outlet
Cummins 370 Diamond – 31 Bertram port engine cross over-3″ to 4″ dry to 5″ mixer
Yanmar 6LYA370 dry riser – 4″ dry to 5″ mixer to 6″ stern exhaust-V-Drive application
Detroit Series 60 – 6″ dry riser to 8″ wet mixer to 10″ FRP tube collector to twin 6″ outlets to stern – Right side of pics show 100% dry aux exhaust thru side of vessel – 90 Ft Aluminum converted crew boat
Detroit Series 60 dry riser – 6″ dry to 8″ wet – Notice flexible hanger above wet mixer-SS 6″ dry flex / “bellows” under wrap on riser
Cummins N-14 Dry turbo connection – 5″ dry to 8″ dry muffler and stack
Cummins 6CTA 430 dry riser – 4″ dry to 6″ mixer
Simple Cummins QSM – 4″ dry riser to 6″ mixer to 8″ wet FRP mufflers
External stern exits – 5″ into custom 6″ stern port corner outlets
Custom lift muffler for 20Kw aux and 8″ under water exit for Cummins QSM 635
Simple riser for Cummins QSC 540 – 4″ dry to 6″ wet
5 to 6 inch Surge tube connection
QSB riser pointed to the “right spot” eliminating and hard wet bends
Difficult design with long dry riser for Cummins 6CTA on commercial vessel – 4″ dry to 6″ wet to existing 8″ outlets – Has dry “flex” in riser and flexible hanger attached to “cold mixer”
100% dry exhaust to side outlet – Aluminum boatAnother Riser Doomed to FailDoomed480CE with bad riser design, This is doomed to fail…
Using Factory elbows – Budget sometimes prevails & goes against my wishes
Cummins 6BTA 315 – 4″ dry riser to 5″ mixer to 6″ “surge tube”
Detroit Series 60 – 6″ dry riser to custom 8″ wet mixer on 85 Ft commercial boat-4B 37Kw Aux in background with 3″ dry riser to 4″ wet lift mufflerEarlier style heat wrap design using wire to fit / secure the wrap to dry riser – We prefer the more expensive “SS spring” design
Un-finished 6″ dry riser
Deep hulled sail boat – Tall dry risers for both the Cummins 4B main and 2 Kw Yanmar auxiliary. The tops of both engines are about 12″ below the waterline
Cummins 6CTA 8.3 with 4″ dry to 6″ mixer
Cummins 6BTA 370-Starboard riser in 35Ft Bertram – 4″ dry to 6″ mixer
6″ simple 95 degree “wet elbow”
Cummins 370 Diamond-Starboard-3″ dry to 5″ mixer – 36Ft Hatteras
This style dry riser shows the ultimate in safety-100% “over the top” water injection on the down hill side
Cummins QSM 580 with 4″ dry riser to 6″ mixer to custom lift muffler w/ 8″ side outlet
