Browse Publications Technical Papers 2005-01-1151
2005-04-11

Development of a New 4.0L V6 Gasoline Engine 2005-01-1151

This paper describes a new 4.0-liter DOHC V6 engine (VQ40DE), which was developed for use on a new compact sport utility vehicle and a compact pickup truck. To meet drivers' demands for acceleration performance when merging into freeway traffic, passing or re-acceleration performance at low speeds in urban areas and hill-climbing or passing performance while towing, the VQ40DE engine produces high output power at its top speed and also generates ample torque at low and middle engine speeds. (More than 90% of its maximum torque is available at engine speeds as low as 2000 rpm.) As the latest addition to the VQ engine series, the VQ40DE engine has the largest displacement in this series. The VQ engine has been named to Ward's Ten Best Engines list for ten straight years, through the continued evolution of its intrinsic technologies to meet market needs. The VQ40DE engine achieves its high performance in part by being a derivative of the VQ35DE engine that was developed for use on a sporty sedan. Development efforts were focused on how to attain an optimum balance among the requirements for performance, quietness and smoothness. This paper provides the details of this VQ40DE engine as well as highlights of individual technologies that contribute to its optimally balanced performance.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Members save up to 18% off list price.
Login to see discount.
Special Offer: Download multiple Technical Papers each year? TechSelect is a cost-effective subscription option to select and download 12-100 full-text Technical Papers per year. Find more information here.
We also recommend:
TECHNICAL PAPER

Second Generation of High-Response V6 Engine Series (3.0 and 3.5 Liters)

2000-01-0668

View Details

TECHNICAL PAPER

Development of a New V-6 High Performance Stoichiometric Gasoline Direct Injection Engine

2005-01-1152

View Details

TECHNICAL PAPER

Third Generation of High-Response and High-Output 3.5L V-6 Engine

2002-01-0450

View Details

X