2004 Isuzu Direct Injection Gas Engine
What's Special About It?
Currently, only two gasoline automobiles sold in the U.S. have direct injection for their engines — the BMW 760Li and the Rolls Royce Phantom. Next year, Isuzu will debut a 3.5-liter V6 with this state-of-the-art fuel delivery system.
Based on the current 3.5-liter V6 found in various Isuzu models, this engine will be more powerful, cleaner and less thirsty than the standard fuel-injection version. Direct injection (DI) is just that; fuel is sprayed directly into the cylinder, as opposed to normal fuel injection that sprays the gasoline inside the intake port. Direct injection is done at very high pressure, which promotes more complete combustion, and the more precise metering also lowers both emissions and fuel consumption. The 2004 Axiom 2WD with the DI V6 will be rated at 18 mpg city and 23 mpg highway.
Another benefit of DI is that the vaporizing fuel has a cooling effect, allowing a higher compression ratio (10.3 to 1 versus 9.1 to 1) that boosts output by 20 horsepower for a total of 250 ponies. Performance figures improve greatly — Isuzu claims that 0-to-60 times drop from 8.9 to just 7.5 seconds, with the quarter-mile being cut from 16.5 seconds to 15.8 ticks.
The 3.5 DI V6 will come standard on the 2004 Axiom and optional on the 2004 Rodeo.
Why Should You Care?
This is impressive technology in a mainstream vehicle, and Isuzu could really use something to get a leg up on the competition right now. - John DiPietro
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