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Subaru introduces EFI engines

March 9, 2009 – Subaru has launched a new line of electronic fuel injection (EFI) engines that are ideally suited for use with a variety of equipment found in rental yards including welders, generators, pressure washers and lawnmowers.


March 9, 2009
By Administrator

Subaru has launched a new line of electronic fuel injection (EFI) engines that are ideally suited for use with a variety of equipment found in rental yards including welders, generators, pressure washers and lawnmowers.

The line includes two models, the EH72 V-Twin and EH72 UTV, both of which are designed to reduce fuel consumption and emissions, while providing fast, easy starts in a wide range of ambient temperatures.

The EFI engines run on an open-loop system using an electronic control unit (ECU). Using several different sensors that are able to accurately detect manifold pressure, ambient temperature and throttle position, the ECU is constantly relaying information to the injector to deliver the proper air-to-fuel ratio.

The result of this continuous relay of information is an engine that is always running at an optimal level, resulting in better fuel economy and emissions control. The estimated fuel economy improvements are 11 to 25 percent over that of a similar carbureted engine and exhaust emissions are reduced by more than 20 percent.

Both models are available in a 653 cc or 720 cc configuration, with power outputs ranging from 20- to 27-horsepower. The engines feature a two-barrel manifold with a fuel injector for each cylinder. This allows each cylinder to operate independently of the other, which aids in fuel optimization and also in improving the engine’s efficiency and performance.

For applications that require a smaller, more compact engine, the EH72 UTV engine is available in a low-profile design for both the 653 cc and 720 cc configurations.

www.subarupower.com


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