Will MDS show KR?

[09HemiRT]

2009 Charger/U7135/9r28

Just got back from datalogging at cruising speed and one 0-60 run. While cruising at 45mph ST KR was between 1.500 and 2.500. It spiked up to 4.500 for about a second then came back down. I know MDS kicks in while cruising at 45mph with light pedal pressure. The log also showed LT KR at 2.500.

Is this normal?

The 0-60 run showed only 1.000 ST KR at 4400rpm. This was in second gear. When the car shifted from 1st the rpms dropped to 3600rpm and as the revs climbed the was zero ST KR until 4400rpm. It dropped to .500 before I let of the throttle.

I just switched to the 93 tune from the 93 CAI tune since I had re-installed the stock airbox and removed the aFe CAI.

Thanks.

[Toyorider]

there is some knock on the ram hemi trucks. just search part throttle knock/ping/kr. i dont believe they fixed it in the last crom but i havent done any datalogging yet to see....

[09HemiRT]

Do the Ram's have MDS?

For the record I looked at some other logs that were recorded with the 93 CAI tune and my CAI in place and never saw any of the part throttle KR like described above.

[mikel]

Yes, 05+ HEMI Rams have MDS.

[09HemiRT]

I put the stock tune in and datalogged. Did the same as before. Cruised at 45mph with MDS on and then did a couple of WOT 0-60's. Not a hint of KR anywhere. 93 octane fuel in the tank. Guess I'll be putting the CAI back on and having the tune tweeked to get rid of KR. Sound good?

[09HemiRT]

Any reason why the stock tune doesn't show KR with MDS on and the Predator 93 CAI tune DOES?

[mikel]

The predator tune has more timing than stock?

[09HemiRT]

Should this be something to worry about? Will it be ok to run the car everyday with the MDS and the KR noted above? If not what should I do?