Turbo silencer ring - Dodge Cummins Diesel Forum
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post #1 of 25 (permalink) Old 03-26-2011, 11:49 AM Thread Starter
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Turbo silencer ring

heard you can remove the holsets turbo silencer ring....are there any benefits or concerns? thanks

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post #2 of 25 (permalink) Old 03-26-2011, 11:57 AM
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Removing the silencer ring doesn't change anything performance wise, it'll just make the turbo a little louder.

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1997 Dodge Ram 2500 Regcab 4x4
270k 4.10 Auto, BHAF, silencer ring gone, straight piped, t/c switch, potentiometer tps bypass
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post #3 of 25 (permalink) Old 03-26-2011, 11:58 AM
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only benifit I found was you hear the turbo better, as the name implies it just blocks the sound vaves from going out in to the intake housing, diverts it back to the intercooler lines dampening it down to almost nothing.... I have head some say it allows more airflow but have not seen that theory prooven... the truck sounds alot better when its removed...

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post #4 of 25 (permalink) Old 03-26-2011, 12:07 PM
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I dropped a couple of tenths off my quarter mile, and got a hot wife. I can't think of too many mods that pull that off. On top of that I can't hear her over the turbo.

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post #5 of 25 (permalink) Old 03-26-2011, 12:25 PM
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post #6 of 25 (permalink) Old 03-26-2011, 12:28 PM
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I heard it bumps your stock turbo up to a stage one.

Preboost screw bottomed out, gutted afc. Custom plastic bag over airfilter, No gauges. Delivery valves removed, 9.5 X 23.25 injectors, Turbo removed. silencer ring port and polished to stage 1.5
she roals the coal... and a tire on fire in the bed.
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post #7 of 25 (permalink) Old 03-26-2011, 12:51 PM
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ok you guys, look inside the compressor housing at the area the silencer ring covers. theres the tiniest slot that the sound sneaks out of, not enough to really flow any extra air or anything. its just a cool factor to remove it than anything.

Brent1985 GMC (The Brown Streak) Sierra Classic 1500 4WD With 6.2L V8 Turbo Diesel Big Fuel System
1995 Dodge 2500 4x4 NV4500 12 Valve Cummins No Plate, Gauges, 5" Homemade Stacks.
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post #8 of 25 (permalink) Old 03-26-2011, 01:01 PM
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It Will NOT affect performance. It will Make the whistle louder. MOPAR/Chrysler puted rings for noise reduction. If you buy a new, BorgWarner, ATS, II silver bullet, Super B special turbo, S400, ect.. They all DONT HAVE rings. So its bassicly to remove noise.

Mine has been removed and I love it! I want louder but cant afford to spend money on a 66 ATM Go for it it takes 2 minutes. 2 flat screwdriver and your done.


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post #9 of 25 (permalink) Old 03-26-2011, 01:14 PM
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actually the garret turbo on the 12.7L series 60 detroit diesels has the same sort of compressor with no silencer ring, but the air reasearch turbo on my 8630 has it built right into the compressor housing along with the shwitzer 3LD on my 4320 john deere. however the VGT turbo on the ISX cummins found in HD trucks DOES have a removable silencer ring in it from factory, and even when you buy a replacement it comes with a removable silencer ring, so im thinking cummins installed them from factory. i wouldnt want to remove one on them ISX engines though, they whistle like a bugger with the ring in lol. with it out it would probably sound like a jet taking off under the hood ever time you shifted a gear.

Brent1985 GMC (The Brown Streak) Sierra Classic 1500 4WD With 6.2L V8 Turbo Diesel Big Fuel System
1995 Dodge 2500 4x4 NV4500 12 Valve Cummins No Plate, Gauges, 5" Homemade Stacks.
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post #10 of 25 (permalink) Old 03-27-2011, 12:07 AM
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The next time I work on a isx I am taking it out and going for a rd test.

Preboost screw bottomed out, gutted afc. Custom plastic bag over airfilter, No gauges. Delivery valves removed, 9.5 X 23.25 injectors, Turbo removed. silencer ring port and polished to stage 1.5
she roals the coal... and a tire on fire in the bed.
B O T T S R . COM
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post #11 of 25 (permalink) Old 03-27-2011, 12:10 AM
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please report back to us with your findings because my boss wont let me do that lol.

Brent1985 GMC (The Brown Streak) Sierra Classic 1500 4WD With 6.2L V8 Turbo Diesel Big Fuel System
1995 Dodge 2500 4x4 NV4500 12 Valve Cummins No Plate, Gauges, 5" Homemade Stacks.
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post #12 of 25 (permalink) Old 03-28-2011, 03:13 PM
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I took mine out and i gained 1.5 seconds in the quarter mile and my sixty foot times dropped to sub 1 second... other then that, nothing else but a really sweet whistling sound, It's funny, everytime the girlfriend rides in the truck I always look at here when we are accelerating to see if she notices the whistle - no dice

New Truck - 03' DRW QC 4x4 3500 HO 5.9L , 4.10, MBRP, Edge Juice w/attitude, auto, 95k miles, AirLift bags..and heated leather oh yeah...
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