Used to drive big rigs in the 70's and 80's. Listening to the turbo and stack talk while hammering down the interstate was almost theureputic. Now, I am enjoying a 2001 dodge 3500, 100 gal tank in the bed (2,000mi range), fass system, gear vendor on a 6-speed, and 19.5" 100,000mi rubber on alcoas, air ride front end, leather buckets, and a low backpressure (loud) 4" exhaust. oh yes..300hp injectors. otherwise stock. I was wondering about how to change turbo wheels, or turbos to get a little more of the whistle I love to hear. Something like the old military m35's with I believe a schweitzer turbo had a great sound. That is what I'm seeking. Any ideas?

 

big open air filter and remove the silencer ring from the front of the turbo.

 

If you havent removed the silencer ring heres how:
-When you remove the intake boot from the turbo there is a snap ring, and a stainless steel "ring" in the inside, they make special tools to remove snap rings like this one, but you can just use two screw drivers. when u get it removed make sure to clean up any excess dirt built up behind the stainless steel "ring". If urs is a high output it will have the Hx turbo, when i removed mine it is very audible inside and out.
-A high flow intake and air neck will help, if u dont want to spend money on those you can take a hole saw and drill a couple holes on the side of the original airbox! make sure its on the "dirty side" of the box/filter.

 

get a 6673 filter and remove ring all for 67 bucks and ull hear a whistle

 

I love that whistle sound. Do you see a downside to making this modification to a stock truck? Simple too.

 

No down side to it,
A lot of us hear have done it.
I love hearing my turbo sing.

 

Can you explain more? How can you tell?

 

look at the tag on turbo it will tell you hx35

 

Took out my silencer rign and can detect no change in turbo whistle. Suppose a different intake might be the answer.

I also noted some oil on the ring and turbo blades. Slop in the turbo vanes didn't seem excessive and doesn't hit the turbo housing. But it's certainly not clean of oil residue.

 

the silencer ring alone does not make too much of a difference. Go to NAPA and get a 6673 air filter. Remove your stock filter and box. Cut the box so that only the bottom flat part is there. Bolt the box back in, install the air filter right on to your existing intake boot. the filter just rests on the plastic base of what used to your OE air box. This is a BHAF (Big Honking Air Filter). A LOT of people run it on here and other forums including me. This will give you the result you're looking for!