runamuk

1. If removing the silencer ring does not increase air flow then why remove it? Just to hear the turbo howl?
2. If the factory installed a, granted, weak air flow straightner then should I remove it and buy a "Tag" air flow straightner?.
3. Does'nt it make more sense to run equal length exhaust tubes i.e. "header" to the turbo thereby getting the most hp out of each cylinder or twin turbos twin exhaust manifolds off the block one for each 3 cylinders? If so who makes a kit?
4. If Scotty has the experience and the numbers to prove his product and It won't void my factory warranty then why would I buy any other intake kit?
5. Does'nt anyone make a real performance muffler for these things?
6. Talk is cheap! I'm looking for hardcore numbers and performance enhancement that will not void my factory warranty or void CARB (California air resources board)laws.


That gentlemen is what I'm here for.

Just to give you a challenge

gsdog1

1. If removing the silencer ring does not increase air flow then why remove it? Just to hear the turbo howl?

Yes. Noise is a wonderful thing!

2. If the factory installed a, granted, weak air flow straightner then should I remove it and buy a "Tag" air flow straightner?.

The "Tag" has mixed reviews. I will save my money and forego that one.

3. Does'nt it make more sense to run equal length exhaust tubes i.e. "header" to the turbo thereby getting the most hp out of each cylinder or twin turbos twin exhaust manifolds off the block one for each 3 cylinders? If so who makes a kit?

Check out ATS exhaust manifolds. There have been a number of people in years gone by that have shown that running compound turbo's is the way to go on these engines. True "twins" like you are describing don't work nearly as well. This is from what I have gathered, I am no expert (self-described or otherwise). Others will chime in I am sure.

4. If Scotty has the experience and the numbers to prove his product and It won't void my factory warranty then why would I buy any other intake kit?

Any aftermarket air intake is a crap shoot, honestly. Get the wrong service manager, and anything but stock is going to get you into trouble. I run the RAIII and am not looking back. It works, and works well. So you are correct, you wouldn't buy another product!

5. Does'nt anyone make a real performance muffler for these things?

Yup, and most of us refer to it as a straight pipe! Least expensive method by far too!

6. Talk is cheap! I'm looking for hardcore numbers and performance enhancement that will not void my factory warranty or void CARB (California air resources board)laws.

In all serious sincerety, move. I did.


Matt

Lightman

I dont see a point in removing the ring or the tag myself. I love my scotty3, and my particular dealer doesn't care.

Hardcore numbers and warranty do not mix. If you are going to do more than intake/exhaust, you can pretty much kiss your warranty goodbye if you have a serious failure. There is mixed info out there, but it's highly likely that if they dig deep enough, cummins or dodge can find out that you've had a tuning box installed, via their diagnostic scanners. Most ethically driven people understand that they 'become their own warranty station' when they start severely modifying their engine.

Mark Thomas

(1)I removed my silencer ring because it stopped the chuffing or turbo bark thing, also noise is good, (2) I have my own homemade cold air intake with a BHAF using a fleetguard filter that exceeds dodge's specs. (3) I think "Tags" are dumb. (4) I run a 5" exhaust, again noise is good. (5) I have not yet saved the money to get the ATS header, transmission is gonna come 1st. (6) It is prety much service managers discression as to yes or no your warranty will ermain intact after making any mods to any vehicle

Hoss

1. Noise is the only "benefit" of removing the silencer ring.

2. I'm getting read to replace that factory straightener with a piece of 5" exhaust pipe...so I don't care to much about straightening....assuming that's even what those things are for. I don't see what the TAG accomplishes but some folks like them I guess.

4. If I ever buy an intake kit then it will either be the Ram Air III or a BHAF. I'm not completely sold on oiled filters though so for now I'm running with my stock intake with holes drilled in the bottom of the box. As I said, I'm also about to take the plastic tube out and replace it with a piece of 5" exhaust pipe. Don't know that it will help, but it's about a $6 modification so I figure why not.

5. Yes...it's called a straight pipe. I have the DPPI (MBRP) exhaust on mine and I guess it's considered to be a performance muffler. I wasn't crazy about the way it sounded at first but I have grown to like it.

6. Anything will void your warranty if they really want it to. I'm out of warranty now so I figure I'll just do what I want to do.

Dodgezilla

I would get intake pipe as exhaust pipe may rust.....

Hoss

That's what I was planning, but the intake pipe I've seen said the walls were 1/16" thick. Maybe that is plenty thick, but I wondered if it would collapse when I tightened the clamps down on it.

Mopar_Mudder

From my understanding of turbo bark that is not possible

Mark Thomas

You prolly correct, my description of the sound is: under full throttle like entering an on ramp when going into OD it would make a sound like a a gasser with bad gas or incorrect timing and you could feel it in the floor board, That went away promptly after losing the silencer ring.

Mopar_Mudder

Ah yes, actual turbo bark is when you are hard on the throttle with lots of boost and fuel and then you jump off the throttle real fast. It make a really bad sound that you can't miss. Has to do with all the built up pressure that has no where to go I guess, can break a turbo.

cquestad

Both situations above are turbo stall or surge....aka turbo bark. When the truck shifts into OD the RPMS drop rapidly and the volumn of air leaving the engine is reduced significantly (rapid change in drive pressure). When you let off the go pedal real quick (especially when the converter is not locked up for those auto guys) you have the same situation. The rapid change in drive pressure slows the compressor wheel wheel down super quick and the fast stream of intake air slams into the turbo making that chuffing sound. If you think it is loud on a OEM turbo...you should hear it on a BIG one!

tcr

1. Turbo howl? YEP!
2. Tag=no bang for your buck, pass on if money is an issue.
3. ATS header ATS header ATS header
4. Scotty knows filters, and so do others, AFE, airaid, K&N. This is opinion based for everyone. It is possible that they all will void your warranty.
5.strait pipe 1st, if its too loud your too old! Just kidden guys, its a cheap mod and you can always put a hi-flow muffler in its place ( make sure i.d. is at least 4" all the way through for "hi-flow") my .02.
6.California Sucks! and Texas(i love it here) and a few other states are following suite w/ these bs epa type rules and regs.

Car_nut57

1. Many have already said it, the silencer ring removed is louder. One function the silencer ring has is a deflector. Air that comes back through the slot in the shroud of the turbo hits the back of the ring and is delected back towards the compressor wheel inlet. This is a good thing even if it is quieter.

2. We have some new data about the volume of air taken into the turbo using the TAG which indicates its benefits. Its not intended to be a big performance increaser, rather to increase turbo efficiency. You can find information on the TAG here http://www.dieselpowerproducts.com/tag It does seem to have more benefits for those who tow rather than race.

4. The Scotty intakes work very well. We have one on the 04 here in the shop and noticed an EGT drop and slight performance increase when the old cotton filter was replaced by the two stage foam. Definately one of the better choices for air intakes.

5. One of hte better performing exhausts on the new Cummins is an Aeroturbine placed as far forward in the system as possible, ie: right on the cat outlet, remove the factory muffler and connect with staight pipe to the factory tail pipe. Main benefits are no drone, lower EGTs and great sound. Not too loud.

Nascarcamper

This sound will just about make you jump out of the seat in my Turbo 6 Buick Grand National, it makes a nasty bark. It did it on every Turbo assisted vehicle I have ever owned, from Toyota's to Buick's and all my Dodge's cars and trucks. Still makes me shutter !!

BoostdCTD

Unless they were all autos they should have a blow off valve to release pressure so the turbo doesn't bark. My turbo didn't sound like it was blowing off properly (couldn't hear it, just the turbo spool down) when I let off but when I tested it, it seemed to work fine.