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-   MDS (http://www.ramforumz.com/forumdisplay.php?f=147)
-   -   RPM with and without MDS (http://www.ramforumz.com/showthread.php?t=113783)

BMosh 05-29-2012 05:23 PM

RPM with and without MDS
 
When MDS is engaged or disengaged, what is the RPM when cruising at 65mph on the freeway?

I have an 08 4x4. I have mine tuned with MDS off. Truck is running about 1600 RPM on the freeway at 65mph. I've noticed what might be the MDS drone, but I recently swapped mufflers and it might just be that I am still adjusting to them.

My buddy has an 06 with no MDS and he runs at 2000 RPM at 65 on the freeway.

Could it be that even though I set my Trinity's parameters to shut MDS off, that it is in fact still engaging?

GTyankee 05-29-2012 06:33 PM

If your friends Ram is a 2006 1500 model with a HEMI, he has MDS
if it is a 2500 or 3500 it will not have it

I drive my 2009 HEMI powered Ram across the flats with 1000 pounds of extra weight in it
you can see for yourself the speed, RPMs, outside temperature, & MPG

The MDS is engaged in this photo, it reads FUEL SAVER on mine when it is engaged
Cruise Control is also on

http://img263.imageshack.us/img263/6879/img0640w.jpg

CdnoilRAM 05-29-2012 11:01 PM

I'd double check to see if you've actually deactivated the MDS. After that I'd check if you're just running in O/D and getting that low RPM as my '07 can sound pretty weird when cruising at highway speeds. I have my MDS programmed out with a custom tune and even with my cutout it will sound limp at low RPM when cruising.

BMosh 05-29-2012 11:09 PM

it is definitely set to off. Im thinking its just the different muffler. Thanks for the replies.

KarateManAZ 08-20-2012 04:39 AM

I'm sure he has different gears or different size tires....


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