Originally posted by mpulse1
I'd think that the 2750 rpm jump is due to the opening of the shorter set of intake runners. The torque curve is fairly flat up to that point, and fairly flat after that.
Thanks for posting the plots. I was currious how the variable valve timing handled the changes caused by the opening of the short intake runners...[/b]
Yup.Originally posted by DuratecPerformance
I do believe they are tumble flaps and not variable length intake runners....[/b]
Yup.I also think the intake manifold on the Mazda6 V6 has swirl vains built into them....