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Exhaust 5.7 HEMI Exhaust Discussion


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  #1  
Old 08-11-2010, 12:18 PM
jrp0629 jrp0629 is offline
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Default 2006 Ram Hemi with V Force muffler question

I just had a V Force muffler put on my 06 ram to help give it a little rumble but it ended up being pretty quiet. I have the first resignator behind the engine removed but left the one back by the tailpipe on, Should I take the rear one off too? Any suggestions???? Thanks
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Old 08-11-2010, 12:21 PM
City Slicker City Slicker is offline
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Is there any drone in the cab when MDS kicks in?
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Old 08-11-2010, 12:21 PM
erm
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It will get louder if you remove both. I'm not sure how loud the VForce is or is supposed to be. I have no resonators on my truck but I don't have MDS either.

Without a resonator, when MDS kicks in it will drone and it's not a pleasant sound. You can try it and see what it sounds like to you.

If the drone is unpleasant you have a choice...put the resonator back on or get a programmer that will allow you to turn off the MDS function.

Good luck!
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Old 08-11-2010, 06:28 PM
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amendola2001 amendola2001 is offline
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Default

i just had flowmaster 40 put on and took both resonators off if i had too wasent paying much attention was staring at my new tips
,, way louder but like everyone says THE DRONE IS ANNOYING,, like if you dont care what it sounds like when it drones you wont care but if you enjoy the correct sound and rythym of your beautiful loud exhaust it will drive you crazy,,, i can't spend it right now but with a programmer it will soon end!!! THANK GOD,,, hope this helps at all,, just my experience. I have also heard alot that the resonator quiets down any muffler and without it you will gain loudness but beware the drone,,,,
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Old 08-11-2010, 10:04 PM
jrp0629 jrp0629 is offline
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I guess I really don't know what this "drone" sounds like so I don't know what to listen for. When does it do it and when does the MDS kick in?
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Old 08-11-2010, 10:08 PM
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The Multiple Displacement System (MDS) provides cylinder deactivation during steady speed, low acceleration and shallow grade climbing conditions to increase fuel economy. Both four and eight cylinder configurations have even firing intervals providesmooth operation. Two cylinders on each bank are active when the engine is in four-cylinder mode – every other cylinder in the firing order. All of the cylinders that are deactivated have unique hydraulic valve lifters that collapse when deactivated to prevent the valves from opening. Engine oil pressure is used to activate and deactivate the valves. It is delivered through special oil passages drilled into the cylinder block. Solenoid valves control the flow. When activated, pressurized oil pushes a latching pin on each valve lifter, which then becomes a “lost motion” link. Its base follows the camshaft, but its top remains stationary, held in place against the pushrod by light spring pressure but unable to move because of the much higher force of the valve spring.

NOTE: It is critical to use the recommended oil viscosity in 5.7L engines that use MDS.
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