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Old 01-31-2012, 06:58 PM
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Turbo???

Is there a big difference in a stock turbo with an upgraded wheel and waste gate compared to a GT38R??
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Old 01-31-2012, 08:39 PM
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The 38r flows 33% more air than stock and is a 88mm compared to 80mm.

You can't really upgrade the stocker to achieve the same stats. The upgraded wheel just helps prevent surge.
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Old 02-01-2012, 04:24 AM
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On that note, I have a 2002 F250 7.3 that I bought about three months ago. Just happen to be looking under the hood for a leak and noticed the word "Garrett" on the side of the turbo. I believe this to be a good thing. I got the truck with an AFE Stage 2 Filter, a superchips tuner, a $1,000 bed cover, and two new Optima batteries. This would just be a bonus if it is the 38R. I am the third owner and maybe the first owner put it on. The second owner may have not known about it.

Questions: Is this stock from the factory, and is there a way for me to tell which model it is?
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Old 02-01-2012, 06:25 AM
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The stock turbo was also manufactured by Garret so it could be either way but I doubt it to be the 38R.


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Old 02-01-2012, 10:36 AM
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the 38r has a 66mm inducer and 88mm exducer and the s366 has the same size in and exducer and flow better then the 38r the s366 is the same price
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Old 02-01-2012, 11:49 AM
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Quote:
Originally Posted by PreciousMetals View Post
On that note, I have a 2002 F250 7.3 that I bought about three months ago. Just happen to be looking under the hood for a leak and noticed the word "Garrett" on the side of the turbo. I believe this to be a good thing. I got the truck with an AFE Stage 2 Filter, a superchips tuner, a $1,000 bed cover, and two new Optima batteries. This would just be a bonus if it is the 38R. I am the third owner and maybe the first owner put it on. The second owner may have not known about it.

Questions: Is this stock from the factory, and is there a way for me to tell which model it is?
Garret is the stock turbo, The GTP38. Post up a pic and we can probably help tell what you have. The inlet into the turbo.. is it 3" or 4"?

The 38R is an upgraded, ball-bearing bigger version and flows a lot more air.

There is no significant performance difference between an aftermarket wheel and the OEM wheel on the stock turbo.


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