Why Drive by wire?
#12
RE: Why Drive by wire?
EFI has always been "drive-by-wire" to some extent since your injectors won't let any fuel into the combustion chambers until after the computer reads the TPS sensor output, then calculates the appropriate fuel pulse.
The throttle valve now being computer controlled is a logical next step, and the increased lag, though miniscule, is sometimes noticeable and frustrating. The slow "decel" on overrun etc is all part of controlling emissions and in many cases maximizing fuel economy. But hey this stuff let's a 300 hp car get an EPA 25 mpg highway (and, I beleive that the 505 hp Z06 is rated 28mpg highway????).
I'm a gearhead from way back but cars today are far superior in almost every technological and performance parameter than any of their Q-jet and double-pumper equipped ancestors.
The throttle valve now being computer controlled is a logical next step, and the increased lag, though miniscule, is sometimes noticeable and frustrating. The slow "decel" on overrun etc is all part of controlling emissions and in many cases maximizing fuel economy. But hey this stuff let's a 300 hp car get an EPA 25 mpg highway (and, I beleive that the 505 hp Z06 is rated 28mpg highway????).
I'm a gearhead from way back but cars today are far superior in almost every technological and performance parameter than any of their Q-jet and double-pumper equipped ancestors.
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