A world class engine: The Optimizer 6500

Author:  Jim Amish, Engineer, General Engine Products
Source:  The Shot Peener magazine, Vol 17 / Issue 4, Fall 2003
Doc ID:  2003012
Year of Publication:  2003
Abstract:  
The Engine The Optimizer 6500 military-focused engine is so reliable and durable that since mid-year of 2000, AM General Corporation is placing the engine in its HMMWV (the High Mobility Multipurpose Wheeled Vehicle which is pronounced HUMVEE) and the HUMMER, a civilian vehicle. General Engine Products, a wholly owned subsidiary of AM General LLC, is under contract to produce over 27,000 Optimizer 6500 engines for the Army through the year 2007. In addition, as engines in the older HUMVEEs are discarded, they will be replaced with the Optimizer 6500. This engine is aptly named: it optimizes the torque to 430 lb-ft. at 1800 rpm, and to 195 horsepower at 3400 rpm in a 756 lb engine, yielding one of the best horsepower to weight ratios on the market.