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  #73  
Old 07-01-2016, 10:45 PM
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Re: Turbo whistle

No problem guys. I'm still waiting to see if the "boss" approves 😔

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  #74  
Old 07-03-2016, 02:07 PM
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Re: Turbo whistle

I'm curious how the metal tube affects sound, with or without the actual CAI. All I really want is more turbo whistle with stock filtration, but got an AFE because of the stock filters ripping.
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  #75  
Old 07-09-2016, 07:50 AM
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Re: Turbo whistle

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Originally Posted by farfromovin View Post
I'm curious how the metal tube affects sound, with or without the actual CAI. All I really want is more turbo whistle with stock filtration, but got an AFE because of the stock filters ripping.
Just installed the K&N intercooler pipe in place of the original muffler using the stock air box with a K&N drop in air filter. I was very surprised to hear nothing different about this setup vs stock. I drove windows open, radio off and the wife and I both agreed to nothing different climbing hills or starting from a dead stop. I didn't want a loud result, but I can't believe there is nothing different about straight through vs. intake muffler. I can't say what it sounds like in front of the vehicle, because I can't be out there going down the road. My opinion is don't waste your money, unless you do both the tube and air cleaner box together. Not sure where to go from here. I would like to hear the turbo spooling up.
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  #76  
Old 07-09-2016, 08:29 AM
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Re: Turbo whistle

I notice it stock with the windows up at a certain acceleration point/rpm. I got a price for the pipe snd filter kit in a auto store here in aus. $950 ausd wtf lol. $743usd on the K&N site with out shipping. $650 usd on ebsy with shipping. Think it was $530ausd with shipping on the carid.com site. But i think i may just stick with Murchison pipe since the results from the above post. The Murchison pipe is a larger diameter, closer to the oem black muffler. Will post when i get it in 2-3 days.
Will see what happens.
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  #77  
Old 07-13-2016, 11:39 AM
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Re: Turbo whistle

Well, I already have a CAI so no metal intake pipe for me!
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  #78  
Old 07-15-2016, 01:47 PM
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Re: Turbo whistle

I think that the problem faced with trying to garner any amount of whistle out of the turbo is multiple: the turbo is in a hot V, meaning that it is located in between the cylinder banks at the back of the engine, as opposed to bolted to the rear or on the side as in similar inline diesels; the car has a great deal of sound deadening throughout; the turbo itself is manufactured differently. That's not to say that some whistle can't be heard, as it can, under the right conditions. Now the M35A2, that was a whistler, but trying to duplicate it may be difficult at best.
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  #79  
Old 07-15-2016, 01:49 PM
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Originally Posted by Nordic1 View Post
I think that the problem faced with trying to garner any amount of whistle out of the turbo is multiple: the turbo is in a hot V, meaning that it is located in between the cylinder banks at the back of the engine, as opposed to bolted to the rear or on the side as in similar inline diesel; the car has a great deal of sound deadening throughout; the turbo itself is manufactured differently. That's not to say that some whistle can't be heard, as it can, under the right conditions. Now the M35A2, that was a whistler, but trying to duplicate it may be difficult at best.
Easy. Straight pipe it from the turbo back and have the dpf/def systems disabled
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Old 07-15-2016, 06:45 PM
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Re: Turbo whistle

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Originally Posted by Strongjeff View Post
Easy. Straight pipe it from the turbo back and have the dpf/def systems disabled

I suspect that your theory may not be plausible. We shall all let you be tester to validate this. Please give us daily updates in your progress.
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  #81  
Old 07-15-2016, 06:46 PM
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Originally Posted by Nordic1 View Post

I suspect that your theory may not be plausible. We shall all let you be tester to validate this. Please give us daily updates in your progress.
Whys that? What would prevent this from being a thing?
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  #82  
Old 07-15-2016, 06:59 PM
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Re: Turbo whistle

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Originally Posted by Strongjeff View Post
Whys that? What would prevent this from being a thing?

The aforementioned amount of sound deadening for starters. Please don't view this as an attack, but I don't think that the results we seek are achievable. I've been wrong before and will full admit to it, and I too would enjoy the whistle to be more prominent.
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  #83  
Old 07-15-2016, 07:07 PM
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Originally Posted by Nordic1 View Post

The aforementioned amount of sound deadening for starters. Please don't view this as an attack, but I don't think that the results we seek are achievable. I've been wrong before and will full admit to it, and I too would enjoy the whistle to be more prominent.
The sound deadening on the body? Shouldn't have an effect on engine noise. Just need to open up the exhaust more. Muffler delete/dpf delete will really bring out the whistle. Plus an intake would help as well.

Not viewing as an attack, just wanted your take on it.
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Old 07-15-2016, 09:54 PM
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Re: Turbo whistle

The other thing to consider that might be the huge determining factor is that the vanes in our turbochargers are variable in pitch, in the same way as the pitch of the propeller on an aircraft can change and as such, the sound could change. The fixed vanes of the garret turbo charger used in the M series vehicles - where the common whistle can be better heard - had fixed vanes.
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