T4 turbo now a weird sound - Ford Powerstroke Diesel Forum
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Old 12-29-2012, 05:20 PM
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T4 turbo now a weird sound

Hey ever since i did my T4 turbo the turbo spools and makes a wind sound almost and i dont know it that is right. it spools up and is hissing like a turbo then i makes a different sound when it gets to about 20-30 psi and makes this weird sound and it kinda feels like it looses power i dont know could it need to be retuned for this turbo?
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Old 12-29-2012, 06:47 PM
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Well, I do know that past the whistle, a turbo will start making a large air sucking (wind) sound because it is actually doing that! Lol.

Now as far as slowing down, not sure on that. Might be running out of fuel.
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Old 12-30-2012, 03:11 PM
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probably the wastegate, do you have a boost fooler?
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Old 12-30-2012, 05:23 PM
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that weird noise would most likely be the waste gate opening up. what turbo are you running? internally gated or external gate? My turbo Camaro makes a different weird noise when my gate opens up on 10# when i'm running pump gas, and even with my external gate plumbed back into the down pipe it makes a very recognizable "exhaust leak" sound inside the car
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Old 12-30-2012, 09:03 PM
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Turbo sounds completely different. It sounds wicked!! I love me Bell HFSB. Like others said, wastegate or no? I don't have one so I cant say too much. But I'm pretty sure you gotta adjust it too your needs
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Old 01-02-2013, 06:57 AM
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Are you running stock injectors?
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Old 01-04-2013, 04:41 PM
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yes i am running stock injectors but it is a s366 turbo from irate diesel and im not sure if it is internally wastegated or not at all i dont think it is
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Old 01-04-2013, 04:53 PM
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Could be a split boot. Can you pressurize your intake side and check for a split/cracked boot?
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Old 01-04-2013, 04:57 PM
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Quote:
Originally Posted by kyleh20 View Post
yes i am running stock injectors but it is a s366 turbo from irate diesel and im not sure if it is internally wastegated or not at all i dont think it is
The wastegate is on the up-pipes. Right before the t4 flange. Routes into the down pipe too. It's an extra 800 bucks I think to get it with a wastegate. Jake told me to not worry about one till I start makeing wayy more power.

What kind of sound is it making?? I can hit 35 psi with mine and it keeps pulling till I gotta shift. And theres no need to get a retune. Not until you swap injectors
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Old 01-04-2013, 06:10 PM
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How much did it run? Where did you get it? What else will i need to install?
I was going to run a 38r but am looking at other options
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