The heart of any engine is the combustions system, so GMC engineers went back to the drawing board to focus on how that could be improved. Engineers evaluated more than 100 possible engine designs and spent more than 10 million hours of computer simulation to find the best combination of efficiency and power.
The computer aided evaluation resulted in engines that provide an improved compression ratio of 11.0:1 with regular fuel. High compression improves combustion to increase both power and efficiency, and emissions are reduced around 25%.
The EcoTec3 family is based on direct fuel injection technology. This system monitors fuel in the cylinders precisely in order to optimize combustion. The cylinders and pistons are also shaped to optimize air and fuel mixture to improve performance.
The EcoTec3 engines also contain a sophisticated fuel saving technology. The large engines can deactivate two cylinders in the case of the V6 and four in the case of the V8 during light loads, in order to save fuel. As soon as the driver needs more power the unused cylinders kick in seamlessly.
This next generation of engines is based on the long running Small Block architecture that sports small size and low weight. To further reduce weight the EcoTec3 engines use an aluminum block with cast-in iron cylinder liners for strength.
Pat McGrath Chevyland is a full service dealership in Cedar Rapids that can provide new and used auto sales, financing, parts, and service. To find out more about the latest generation of the 2014 Chevrolet Silverado, contact Pat McGrath Chevrolet online or by phone at (319) 393-6300.