Is this a normal amount of dirt on the compressor blades? Turbo only installed a couple thousand miles. I run a stock style WIX air filter and it's fairly new and clean.

Curious, if the turbo vanes are dirty is there a way to clean them up before installing a BHAF?

I just reached in with my finger and wiped it off each blade, but the turbo has only been installed a couple thousand miles.

I'm officially in the Big Obnoxious Air Filter club!

You will grow to like it.

"Livin' that BOAF life."

 

The highest pitches coming from the turbo are extra annoying now. I may have to cut up a (metal due to heat?) 5 gallon bucket or something to see if I can attenuate that ruckus.

1 hour ago, LorenS said:

"Livin' that BOAF life."

 

The highest pitches coming from the turbo are extra annoying now. I may have to cut up a (metal due to heat?) 5 gallon bucket or something to see if I can attenuate that ruckus.

 

Wait till you upgrade turbos and there is no silencer ring option, then BHAF added then it just there you can't reduce the noise very much.

21 minutes ago, Mopar1973Man said:

Wait till you upgrade turbos

I hope I'm done with that for a long while, now that my HE351W is installed.

 Think of it as a warning whistle for other drivers that your spooling up and ready to unleash the beast. 

 Just like when a guy at work told me my truck was leaking (water separator valve on the filter housing) I told him "it isn't leaking, it's sweating torque"

I have never minded the turbo noise. Its the other noise I hear from BHAF that bugs me the most. But I have gotten used to it to a degree. The stock air box seemed to muffle that noise.

@dripley, what noise is that? Suction? Like in the old school days when you flip the lid of the air cleaner in a carbureted gasser?

I think I know what he means there other background noises you'll hear like a thumping noise, the turbine whistle, and other things depending on the setup.

The BAHF seems to amplify noises thru the intake system that I do not hear with the stock air especially the thumping noise  The turbo whistling has never bothered me

Installed my new filter today, fits good. It didn't help my turbo whine tho, same as before. This new turbo is quiet The exhaust brake rumble might be just a tad louder.

Looks like my oem was working good, compressor wheel is still shinny. It was due tho, 1 year and 24k miles of a lot of dirt roads.

 

  Did your filter minder show that it was dirty? I ask because I wonder if they really work. Mine hasn't moved a bit since I bought the truck.

I hooked my Filter Minder to my Mity-Vac one time and got it to move.

Maybe with a heavy load, high RPM, and obviously dirty filter it would move.

On 4/29/2021 at 10:05 AM, LorenS said:

The highest pitches coming from the turbo are extra annoying now. I may have to cut up a (metal due to heat?) 5 gallon bucket or something to see if I can attenuate that ruckus.

 

Here is an article @Tractorman did on making the BHAF a little bit quieter.

https://mopar1973man.com/cummins/articles.html/24-valve-2nd-generation_50/51_engine/air-exhaust_56/bhaf-muffler-uhh-r612/

6 hours ago, Doubletrouble said:

  Did your filter minder show that it was dirty? I ask because I wonder if they really work. Mine hasn't moved a bit since I bought the truck.

They do work but it takes a good amount of dust to trip one, on road I doubt one filter through the entire life of the truck would trip it, dusty conditions yes but filter more than likely changed before it trips anyway.

The newer electrical sensors work but probably too well and some can be a right pain

Put the filter minder to your lips and lightly suck on the filter minder nipple it takes very little vacuum. It actually measured in inches of water column. Just like a drink straw how much vacuum to pull few inches of water up a straw.

4 hours ago, Mopar1973Man said:

Put the filter minder to your lips and lightly suck on the filter minder nipple

 There's a joke there but I'll let it go. 🤣

 I wasn't sure if they were reliable just because I've never seen mine move. I have seen them work on big trucks (18 wheelers and such) but not my dodge. Not yet at least 

Welp, that lasted quick. Down on boost and up on EGT's. What the heck? Bad filter? So, it went back in the box on the shelf for the dually and the '01 gets a new filter and old air box. I made sure the elbow was not restricted in any way, yet? Some times ya just gotta use oem