by Richie O » Sat Jan 31, 2009 10:05 am
Redneckintraining wrote:those engines must need to be rebuilt after every race.100% load all the time.
Most of the high horsepower boats run the engines all year long. They of coarse don't push them to maximuim all the time. " Christopher " runs a marine 502 chevy. That was his working engine. There is a guy now that runs a 600 plus inch merlin big block chevy. That is a race only boat. The worst reputation for boat engines around here is the 3116 cat and 3126 cat. In a boat they are 300 to 450 horsepower. They really suck. 5 thousand hours is about it. I know a guy that had a detroit 471 in his boat for over 20 years and never touched it. A guy in town has a 3208 cat with over 25 thousand hours on it. Another guy has a john deere with same time on it. Boat engines have a lot of load on them for sure but, the wheel selection is done so the engine can still hit the govenor wide open. Another words the engine never lugs down. If the engine can not reach governed speed then they put a smaller pitch wheel on.
1989 W250 727, 3.07 L/S, S300, P/S Intercooler, Stans exaust, Pump adjustments, 127k miles,297 hp
1993 W250 extended cab, rag, 4.10 l/s, 6x16's, HTT 62/71/14 piston l/p, Isspro EV series tach, fuel pressure, boost, oil pres, water temp, volt, pryo, 132k/ 301 hp
1992 W250 with NV4500, 3.54's, 16cm 60mm GDS H1C, ground stock cone, Isspro tach, pryo, boost, fuel pressure, slow, rusty, dented,180k