Thinking single turbo, got a few questions

Stroked777

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Ok now I have a finally question... If you were in my shoes, what turbo would you guys run on stock fuel? S366 fmw, 371 fmw, cast 72... Or any others not listed. Truck is dd, sled pull/drag race on the weekends. I'm anywhere between 0-800 above sea level, most of the time around 100-200ft above sea level. Also a stage one cam
I'm close to pulling the trigger, just getting a turbo the right size for me is holding me back
 

SEABEE08FX4

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Ok now I have a finally question... If you were in my shoes, what turbo would you guys run on stock fuel? S366 fmw, 371 fmw, cast 72... Or any others not listed. Truck is dd, sled pull/drag race on the weekends. I'm anywhere between 0-800 above sea level, most of the time around 100-200ft above sea level. Also a stage one cam
I'm close to pulling the trigger, just getting a turbo the right size for me is holding me back

On stock fuel I'd stay away from S400 series turbos. A S366 / S 367 or S371 are all great options. I personally run a FMW S371 and love it, I can still tow with it and it makes a good bit of power over my previous S366.
 

Pizza pig

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cant go wrong with the 67fmw or 71fmw on stock fuel. They spool super quick, and run outstanding. The 67fmw dimensionally is almost the same at a 66, but the blade profile is much taller. It has significantly more surface area and flows a lot more than the cast 66.
 

Pizza pig

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There is no 66fmw. There is a 67.7fmw and a 71fmw. The 66 we sell is basically the same performing as a fmw but we use an aftermarket billet wheel and a 360 thrust. The fmw only has a 270 thrust. But for the money the 66 is a little more bang for your buck.


the 67fmw inducer is 66mm, it just has a taller profile.
 
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Sorry I was thinking 400 series for some reason. But still to my point they will perform the same. The billet wheel we use is much taller than a cast 66. I like having the 360 thrust though.
 

Powerstroke Man 6.4

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Sorry I was thinking 400 series for some reason. But still to my point they will perform the same. The billet wheel we use is much taller than a cast 66. I like having the 360 thrust though.

Sorry to hijack the thread but If I was to purchase a non billet 66 will I be able to upgrade to the billet wheel and 360 thrust at a later date?
 
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Sorry to hijack the thread but If I was to purchase a non billet 66 will I be able to upgrade to the billet wheel and 360 thrust at a later date?


You would have to send it in and have it rebuilt at that same time. It would be about as cheap to sell it and just buy a built one. $800 to rebuild balance, install wheel and thrust. $1200 outright for a new one
 

Stroked777

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Now I imagine that the 360* thrust bearing is more reliable/provide less friction? I maybe way out in left field but that's my take on the difference in thrust bearings, correct?
 
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The 360 thrust will take more abuse from larger pressure ratios that a charger in a hard working application may see. Trashed thrust bearings will allow for wheel to housing contact. Then turbo failure.
 

Pizza pig

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Now I imagine that the 360* thrust bearing is more reliable/provide less friction? I maybe way out in left field but that's my take on the difference in thrust bearings, correct?

I still see 360* bearing failures all the time, realistically its not worth making the switch until you have a failure. I wouldn't worry about the 270 bearing, as long as its kept within its limits there should be zero issues. 9 times out of 10 these things are over sped. If you take into account borg's safety limits of the charger it doesn't take much to kill one.
 
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I agree that mostly failures are associated with over speeding and high pressure ratios taking out the thrust. The fmw has more oil grooves than the standard 270 bearing. But there is no way around the fact that the 360 has 25% more surface area and will handle more stress. Not saying it can't fail. But less likely. As long as it's kept within its safety zone any charger shouldn't have problems.
 

ChattyCathy

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I agree that mostly failures are associated with over speeding and high pressure ratios taking out the thrust. The fmw has more oil grooves than the standard 270 bearing. But there is no way around the fact that the 360 has 25% more surface area and will handle more stress. Not saying it can't fail. But less likely. As long as it's kept within its safety zone any charger shouldn't have problems.

Ever ran 80 psi through an H2E?
 

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