Increase the Turbo Sound?

Only happens when throttle plate closes.
Otherwise you will have compressor surge.

 

I’m just running the TRD air filters. They increased the turbo noise a noticeable amount without being annoying.

 

Guy at work has a ecoboost f150 and has some wastegate. Makes me wanna get one. Then drive the roads where hookers hang out and say psss all around town.

 

Wastegate is in the exhaust, this is on the charge pipe, pressure section.

Two different things. Wastegate controls boost with reference to MAP and MAF sensors, along with throttle position and load calculations.

Recirc/diverter valve, dumps metered pressurized air back into the charge pipe system to keep from screwing up fuel trims.

 

In a way it is a waste type valve. I just couldn't remember the BOV name!!!

 

Agreed, Turbosmart is top notch. Had one on my old Mazdaspeed3.

 

As you can see here, when 4 and d Open they allow exhaust (d) to bypass the turbo straight to the Cat and on the compressor side (4) to go back around to the intake.

 

I see two separate desires being discussed here:
1. Turbo spool noise
2. Excess pressure being released at throttle lift with something like a blowoff valve or bypass valve.

I found this thread in hopes for more spool noise which it sounds like @Daedalus helped find some solutions to increasing it.

I haven't looked under the hood of a Tundra yet (shopping around for one now) but I remember on BMW they have a carbon filter (something for emissions, no other use) as well as the standard air filter in the intake that I ripped out for more sound as well. I wonder if something like this is also muffling noise as well as the "snowgrate"?

 

Yes, it is under the air filter and is easily removed on Tundra, too.

 

Yup. My GTI had a similar thing in the stock box.

I did take a peek at the OEM DV from the toyota manual and it looks like a pierburg unit with NO silicone diaphragm in it (notoriously bad for tearing, early GTI and ecoboost f150s)

 

Voila. Snow grate

 

So can we change the fake v8 sound to a much noiser turbo sound!!!!! That be a no for me!!!!

 

Not fake. Could be enhanced though. Comes right from an intake transducer (microphone)

 

You let me tune your truck, and you will 100% hear turbo sounds.