Silencer Ring Removal

[RacinDuallie]

This proceedure MUST BE DONE WITH THE ENGINE OFF ! ! Do not attempt to do this job with the engine running.


Remove the inlet plastic elbow tube off the intake side of turbo assembly.

Look inside the inlet opening, you will see a round ring the is being retained by a large snap ring.

Remove the snap ring with pick or small screwdriver, use care when prying this snap ring out, try not to score or scratch up the inlet casing. Remove silencer ring.

Now take the time to check the 'play' of the shaft inside the turbo, I would advise this be done if the truck is either used or you are looking at a truck for purchase. Make sure the impellar is not touching the inside of the case.

If it is touching the case, then the shafts bearing is worn, and its time to either have the turbo reconditioned or replaced.

Removing the silencer ring allows a better intake flow into the turbo. And it also allows for a slightly responsive spool up. Tests have proven that this mod gives about 7-10 hp over keeping the ring in there.

And the real benifit is you will be able to hear your turbo sing!:woohoo:

[dodgepower]

Question on this. Does the )^ Cummins have this and is this a mod can do with a otherwise stock motor or should it be done with a air intake system?

[Timbeaux]

Yes, this is a Cummins trick. I had mine in the glovebox the day after I bought my truck. You can do it to a bone stock truck. It just makes more turbo noise

[dodgepower]

Does anyone have any pics of it by chance?

I know you guys are like this guy is getting to be a pain and is a retard but i just dont know alot about them and wanna learn. If ya need to know anything about quads just ask me:ylsuper:

[plrjr]

What Year Engine Models Will This Work With And Any Down Side

[Scooter's Roofing]

94-early07

no down side, only upside

[displacedtexan]

It is much easier to not bark my turbo with it in.

[GreySmoke]

my wife pulled hers off the first week after i bought her truck. it does whistle a little more than it did. she has an 2nd gen cummins

[HighOutput]

does this work on the 6.7?

[displacedtexan]

Not sure if the turbos on them have one or not.

I don't think so but it only takes a second to pop the tube off and look.

[Snedge]

does this work on the 6.7?

No it does not. I mean.... You can take the ring out of the 6.7 inlet, but it's different. It has a few of roll pins that hold it on. The easiest way to remove it is to remove the compressor housing from the charger and drill the pins out on a work bench.

[HighOutput]

have you done it?
notice any improvements?

[bama24v]

I have heard about this about a hundred times and almost every person on the cummins forum with a 2nd gen has done this but it does not improve HP AT ALL but it sure does make your turbo sing

[ElliotB_16]

we've done it on all 4 of our trucks and theres no hp gain on it, from i can tell at least. but it will make your turbo louder

[zeus_r6]

I tried a pick and also a small screwdriver...not to mention the split in the ring is at the top of the turbo inlet....any other tools that might ease this process?

[RacinDuallie]

I tried a pick and also a small screwdriver...not to mention the split in the ring is at the top of the turbo inlet....any other tools that might ease this process?Use the small screwdriver to lift one end of the snap ring, when you have moved this end out of the retaining groove, slip in your pick or another small screwdriver and use it as a wedge and slowly work your way around......

It may be tricky at first but once you start pulling the ring out of the groove and you use your wedge to work the rest of the ring out.

[Sticky]

Well just went outside and removed mine. Took about 2 minutes..The turbo is alot louder now:evil...

[6.0kingranch]

Just did my 95. Great info.

[zeus_r6]

Looked at it as if there was a groove that the ring sits into.....not so much....comes right out of there

[red dodge2]

i did that when i had my stock turbo on and it screamed. alot of turbo whistle. sounds good!

[zeus_r6]

Didn't really make much difference in sound to me...stock paper filter probably isn't helping either

[Mach2]

use snap ring pliers. will decrease the chance of damaging it.

[TheSh111t]

use snap ring pliers. will decrease the chance of damaging it.
My snap ring didn't have any holes in it to allow me to use snap ring pliers. I'm not sure how all of them are, since I have only done my own, but on mine the small screw drive trick worked great.

[T-D-K]

so does anybody know if this can be done on the stock turbo of a LB7:charger: