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New 4B11 Turbocharged Engine.pdf

February 21, 2009 · Filed Under Mitsubishi  · Tags: ,

Taken from Abstract: Mitsubishi Motors Corporation (MMC)’s newly developed inline 4-cylinder turbocharged engine for the LANCER EVOLUTION X is introduced. This new 4B11 turbocharged engine (2 L) attained the 12.5 kg weight reduction thanks to an aluminum die-cast cylinder block and direct-acting valve train. A variable valve timing device MIVEC (Mitsubishi Innovative Valve-timing Electronic Control System) is equipped not only at the intake side but also at the exhaust side in this engine. This makes it possible to set the best valve timing for overall engine speed and improve performance, fuel economy and exhaust emissions. Furthermore, the low- and middle-speed torque and the response are dramatically improved by reducing pressure drops in the intake and exhaust systems and by revising the turbocharger specifications. Regarding environmental aspects, this engine achieved the 50 % reduction level (3;) requirements of Japan’s 2005 Emission Standard by means of a high-performance metal catalyst, etc.

The main objective set forth for the development of the 4B11 engine was creating a new turbocharged engine that is excellent in performance while meeting the needs of the times for environmental compatibility. In line with this objective, an aluminum die-cast cylinder block was newly developed with the aim of reducing the weight of the engine. The cylinder block in development also featured a rear exhaust layout, which is the first of its kind to be introduced for MMC turbocharged engines. The measures employed for better fuel economy included the Mitsubishi Innovative Valve-timing Electronic Control System (MIVEC) and a high-efficiency alternator. Started by setting “superiority of performance in the motor sports field” as one of the concepts to be embodied in the engine, the development had generous technical feeds from the motor sports know-how or DNA that MMC had cultivated and accumulated through World Rally Championship (WRC) experiences. This know-how was incorporated into this production engine.

In this reference you will also find 4B11 (2.0L) engine specs, fitted on Lancer Evolution X along with TD05HA-152G6-12T Titanium-aluminum alloy turbine wheel and aluminum alloy compressor wheel combination or OPTIONALLY TD05H-152G6-12T Inconel turbine wheel and aluminum alloy compressor wheel combination.

This manual is available FREE at Mitsubishi Motors website, we merely collect the information, we are neither affiliated with the author(s), the website and Mitsubishi brand nor responsible for its content and change of content. (Read our disclaimer here or here before you download the document from the website written above by clicking the below link).

Download free New 4B11 Turbocharged Engine.pdf (4 pages pdf file, 1.7 MB).

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Comments

One Response to “New 4B11 Turbocharged Engine.pdf”

  1. zulhellme on April 14th, 2009 10:31 am

    can u give me how to insert a turbo system in my lancer gt 08..(4b11) engine

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