Chainsaw Powered Motorcycle
Straight out of the unique engine swap folder comes the Dolmette motorcycle which is powered by 24 chainsaw engines. The chainsaws put their power to the ground via a single belt drive system. All together the engines make 24 cylinder 1.9 liter engine putting out around 167 horsepower and about 100 ft.lbs. torque.
Dolmar explains the system below better then I can.
The heart of the combined power plant is the central drive belt casing of aluminium construction. As well as encasing the eleven belts used to couple up the individual engines, it also houses the exhaust ducts for the cooling air. Twelve engines are mounted in two rows of six on either side of the drive belt casing. Each engine is held in place by means of two threaded studs that normally serve to secure the guide bar to the chainsaw power head. The individual motors are coupled together in sets of three by means of a double-sided drive belt, making up eight modules in all. The individual engines are not rigidly connected; instead they deliver their torque through the centrifugal clutch that is a standard feature of every chainsaw.
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Source: Dolmar specs via HackedGadgets via Make
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