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Originally Posted by killer71
So are we to assume that dod and vvt mean the samething or are they 2different terms?
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Everything I've read says they're 2 different things. . . ....
DOD is supposed to delete the firing of sequential cylinders under "limited load" situations @ fixed-rate RPM. What I've read is this means it kills 4 of the 8 cylinders under consistent, constant, light load conditions which theoretically will increase mpg 10~15% on the highway. This seems like it would be tough for an aftermarket/non-mass produced application to maintain its funstionality.... IDK.
The VVT adjusts the cam phasing so the motor is more docile @ idle (producing better efficiency & reduced emissions) yet can maximize output as the cam timing changes throughout the RPM range. This should make an already efficient engine even better (potentially more power per unit of fuel burned or less fuel to match current power levels).
Am I close 68ss?
I'm just curious how these things will respond to the 'tuners' tricks. In communications w/Don, he seems very optimistic.