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Air heater – how long to operate
This topic has 13 replies, has 7 voices, and was last updated by 4 years ago
November 26, 2019 at 9:56 pm Hi Tony, Iām bypassing the ECM on my 6BTA 270 and wiring it with a switch and a light. My question is when and for how long should the air heater be engaged? Seems like pre-heating for too long could draw down cold batteries
13 RepliesDecember 8, 2019 at 8:58 am After one of the contactors shorted out, I removed the ECM, all contactors, and wiring harness (that was fun). I could wire the heater grid in the JWAC, and control it with a switch, but I’ve not found the need for the heater. The boat is active from April to November in Rhode Island, and other than April and November, I’ve not had a problem with cold starts. I’m on a slip, plugged in, and the block immersion heater (Fleetgu…
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6bta more power
This topic has 2 replies, has 3 voices, and was last updated by 4 years ago
October 6, 2019 at 8:05 pm Hi Tony and the team, I have a 6bta jwac engine rated at 270 hp with the Bosch pump. On the surface it seems as though the next hp increase in Cummins evolution came from going from jacket water to a raw water after-cooler. So the simple question is can you just swap out and re-plumb the aftercooler for more hp or does this just open up a can of worms? Paul
2 RepliesOctober 13, 2019 at 1:34 pm Just modifying the aftercooler will not hot rod the motor, the fuel map is key to doing that. The injector pump and injectors and possibly other items related to increased internal loading/heat may be involved. Donāt forget that the drivetrain and propeller may also need upgrading with a power increase. Cummins has already done all the homework on this, and they offer their motors in a variety of configurations so that you can get what you need…
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Air heater – how long to operate