How do multi engine pulling tractors work

Some multi-engine tractors operate the engines by connecting them crank to crank. They have a coupler that is fitted in place of the splined flywheel and another coupler that fits in place of the splined damper pulley, and they slide together as a unit.

No ICE engines with that capacity have been built for 50 years now. A diesel locomotive engine is in that ballpark, but they’re real heavy. And they’re designed to turn slowly. As I understand modern high-tech tractor pulls, the sled gets harder to pull based on the time since the green light, not the distance traveled.

Question for tractor pullers: drivetrain for multi-engines

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Some multi-engined tractors run the motors hooked crank to crank. They have a coupler bolted in place of the flywheel that is splined and a coupler that fits in place of the damper pulley that is splined, and they slide together. Kinda hard on the crank that has to take the power of both motors!

A dual row roller timing chain can then be slipped over both sprockets, effectively connecting the two cranks. You can set it up so both engines fire the #1 cylinder at the same time, or spread out the firing order however you please (it never made any difference for us). George Klass, . SHARE POST #21.

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East Coast Pullers Multi Engine Tractor Modification! Video Answer

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