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Garrett GTP38

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Old 06-08-09, 10:15 AM
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Garrett GTP38

I cant seem to find any real info on this turbo... We've had this turbo sitting at our shop for quite a while off a 7.3L powerstroke diesel... I've had a local rx7 shop tell me that its a worthwhile upgrade. Any one happen to have any experience with these turbos, or some kind of info?
The motor is a ported s4 13bT....
Old 06-09-09, 11:32 AM
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ok so i finally found a map, however it doesnt have the efficency levels posted on the graph...Is there a way to find them using the map? This is the link to a upgraded model, but shows the original aswell.
http://www.turbobygarrett.com/turbob...%20pstroke.pdf

So it would be the red lines on the graph...

Looks like it may work afterall? Any input would be great!
Old 06-09-09, 04:29 PM
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55 pounds per minute makes approx 400 rw on a 13b
Old 06-10-09, 10:36 AM
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So what do you suppose if the turbo flows around 59-60 lbs/min. Do you think you would be able to get around 415+?
Old 01-25-13, 05:22 PM
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Compressor map

Does anyone still have a compressor map for a GTP38 turbo?

It is no longer appeared in Garrett catalog.

Originally Posted by J.Cab
So what do you suppose if the turbo flows around 59-60 lbs/min. Do you think you would be able to get around 415+?
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