multi-displacement system revs

[RJO-75]

Hi guys.
Have a question for the guys with the 5.7 hemi and the mds, or anyone really

when doing 110 with cruise on, flat road what revs does your GC do when the mds kicks in or do the revs not change when it shuts down four cylinders?

Thanks

Rod

[JamesLaugesen]

Originally Posted by RJO-75

Hi guys.
Have a question for the guys with the 5.7 hemi and the mds, or anyone really

when doing 110 with cruise on, flat road what revs does your GC do when the mds kicks in or do the revs not change when it shuts down four cylinders?

Thanks

Rod

Nar the revs don't change directly with MDS activating.
As-in, it doesn't drop or increase a gear at the same time as shutting down the four cylinders.
Sometimes I notice a small change (like a hundred-or-so RPM), which I've always assumed is the torque converter changing state due to the change in engine load and whatever.

It can change gear "normally" (to match speed, load, etc.) and stay in MDS though, if you're careful/lucky with the throttle & load.
So it'll sometimes activate MDS and change gear at similar times.

[warod]

I haven't noticed any change in RPM when MDS kicks in.....