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If the Mopar system works the way others I am aware of work, it's actually quite simple. The engine computer senses when the vehicle is under a light load situation, such as steady speed highway driving, and it shuts off fuel and spark to as many as 4 cylinders. Then engine only uses the remaining cylinders to make power, using less fuel to do so. When it senses a need for more power, it will turn these cylinders 'on' again to tap the available power that the engine is capable of making. This process effectively cuts the displacement of the engine from it's full 5.7L to as little as 2.85L depending on how many cylinders it cuts out.
Through the use of solenoids and oil pressurte it also "shuts off" the lifter to those 4 cylinders
What else can I help you with?
What is MDS engine mode on a dodge charger?
Multiple displacement system. The 5.7L Hemi will drop down to 4 cylinders under light load to conserve fuel.
What are some special features of the Dodge Ram Hemi engine?
The Dodge Ram Hemi V8 engine operates on the 'Multi-Displacement System' developed by Chrysler. This system closes four of the V8's cylinders when the car is going at a steady speed.
What year multi-displacement system 5.7 hemi come out?
2006
'Does all 2004 RAM 1500 Hemi have MDS'?
Not all 2004 RAM 1500 models equipped with the Hemi engine have the Multi-Displacement System (MDS). The MDS feature was introduced in the 2005 model year for the 5.7L Hemi engine, allowing the engine to deactivate four cylinders under light-load conditions to improve fuel efficiency. Therefore, if you have a 2004 RAM 1500 Hemi, it will not have MDS.
What the hp in a 2008 ram 1500 hemi?
The 2008 Ram 1500 with the HEMI engine is equipped with a 5.7-liter V8 that produces 345 horsepower. This engine is known for its strong performance and towing capabilities, making it a popular choice for truck enthusiasts. The HEMI also features a multi-displacement system that helps improve fuel efficiency when full power isn't needed.
Can i use 10 40 synthetic blend high mileage on 2011 jeep grand Cherokee 5.7 hemi?
No. A 2011 Hemi requires 5W20 for the multi displacement system to function properly.
How much would it cost to put a hemi on to your 2012 dodge challenger engine?
The Hemi IS an engine, you can't "put" a hemi on to another engine
What is the difference between a regular V8 engine and a hemi V8 engine?
the heads. the tops of the combustion chambers of a HEMI engine has a hemispherical shape whereas in a non-HEMI engine, they are flat. for more info, read this: http://auto.howstuffworks.com/hemi1.htm The rounded concave hollow of the cylinder header allows for larger valves to be used so the engine can breath easier and produce more power over a regular motor of the same displacement.
What is hemi engine?
A hemi engine refers to one of the most popular high performance engine types.
Who made the hemi engine?
Chrysler corporation made the hemi engine back in the 50's.
What is a hemi truck?
Hemi is an engine and it's made by dodge
Is a 5.7 l Hemi a big block?
No, a 5.7L Hemi engine is classified as a small block engine. While it is larger than many other small block engines, it is not considered a big block, which typically refers to engines with larger displacement, often above 7.0 liters. The 5.7L Hemi is part of Chrysler's family of small block engines designed for various applications.
