16 Triton 179TRX 16 115 Merc 20 Merc prop, Lowrance Hook 5, Lowrance 5 HDI, Motorguide X3. 49.5 mph @ 5800 rpm gps. VIN - ME 01 Triton TR186 08 175 Merc Opti 6" Atlas hydraulic. Propshaft is 2.75" below pad. 56 mph @ 5600 rpm "Just repowering my boat with a 175 Optimax, ...