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Discussion Starter #1
Does the 38R turbo have a "whine" or some type of noise at highway speeds when towing? How does it compare to the van turbo?
 

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It has a whine when it spools up and at certain rpms.

It's sounds very different than the van turbo
 

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Discussion Starter #3
Is the sound it makes disturbing and an annoyance on long trips when towing?
 

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Discussion Starter #5
How does the van turbo compare to the 38R?
 

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The van turbo isn't louder than stock
 

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Discussion Starter #7
What other parts should an individual buy to go with/accommodate the van turbo?
 

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You will want the outlet flange. It is different than the stock turbo.

I would also get a Billet compressor wheel.
 

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I've found that with tuning and a billet comp wheel they spool pretty fast.

The turbine wheel is larger on a van turbo as well.
 

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I've found that with tuning and a billet comp wheel they spool pretty fast.

The turbine wheel is larger on a van turbo as well.
They are not laggy like a D66 turbo, but still more-so than a stock SD turbo with a .84 housing. They were a non-wastegated design, so to get drive pressures in check, a later spool is the norm.
 

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Discussion Starter #12
Wife & I tow a travel trailer, sometimes long distances, so quietness is golden for us.

Under a load at 1800-2000 RPMs, is the whine/noise of the 38R noticeable? Thanks in advance
 

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Wife & I tow a travel trailer, sometimes long distances, so quietness is golden for us.

Under a load at 1800-2000 RPMs, is the whine/noise of the 38R noticeable? Thanks in advance
If you don't like to turn the radio up, a 38R may not be the best choice for you then.

I run one, and have pretty much gotten used to it singing. If I don't want to hear it, I turn the music up.
 

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Discussion Starter #14
Do not usually play the radio when towing. Perhaps the van turbo or another stock turbo might be a better option for us when the time comes for replacement.
 

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Do not usually play the radio when towing. Perhaps the van turbo or another stock turbo might be a better option for us when the time comes for replacement.
You can do that. Another option is to use a billet wheel in the GTP38R. This quiets it down a bit. The downside is that the 38R does not perform as well with a billet wheel compared to the stock cast wheel. So you are decreasing sound, but losing performance too. I opted to deal with the sound.
 

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Discussion Starter #16
Thought I would bring this thread back since I started it many years ago. On the new 38R turbos manufactured now, are they still noisy or have a whistle/whine sound at highway speeds towing? Would appreciate hearing from someone who has bought and installed a new one.
 

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If looking at changing (if new ones are quite, which I doubt) why wouldn't you just go to a better platform?

Sent from my SM-G988U using Tapatalk
 

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I have one in mine. I don't really hear much of a difference but my wife says the spool up is a little more pronounced than the stock one. I have bad hearing due to many years of construction noise. But I don't think it will bother you much. I run the AIS intake on mine so that may suppress the sound some.
 
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