Garrett turbo

maxedout said:
They will handle some pretty serious heat. We ran nearly all last year with egt's in the 2000+ range.
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Serious? My GT4294 didn't nearly hold up to that kinda heat. Which turbine was in yours?
 
A GT4202 will handle 2000°

For awhile.

Then the exh housing will start to get radial cracks, and you might see the turbine tips start to erode. At that point, you only have a short time left.
 
McRat said:
A GT4202 will handle 2000°

For awhile.

Then the exh housing will start to get radial cracks, and you might see the turbine tips start to erode. At that point, you only have a short time left.
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Is this from experience !:hehe:
 
LOL Glad to hear it's just not my vendors that ask me that! I really wonder since every Garrett that we've touched has eroded the turbine to some extent.
 
joefarmer said:
LOL Glad to hear it's just not my vendors that ask me that! I really wonder since every Garrett that we've touched has eroded the turbine to some extent.
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Realy ! This is concerning ! Did it happen to every turbo from Garrett? Or just the ones you ran Nuclear EGTS with ! I run a GT4094r . I doubt I will ever see 2000 degrees !
 
Well the GT3782R (Stage II) seems to be holding up fine under 1500*...but the GT4088R was toast under 1400*, and the GT4294 Brandon ran was FUBAR!!

What else did we break Brandon??
Chris
 
Why would we need bearings? I need a shaft an turbine wheel, and someone to install them;)

Chris
 
Send me a PM I have a decent stock of Garrett parts including turbines.. Depends on what you need.

Brayden
 
So if you guys are killing the turbines due to high heat in a SINGLE turbo application, would they be ok to run in a set of twins? I imagine whatever the pre-secondary turbo pyro is reading the primary would be seeing atleast 300* less than that right? So could it live a healthy long life?
 
The turbo we have is on a 7.3 never saw over 1200 so no extreme heat here
 
Wayne's Garrett-based Precision did the same thing, cracked the exhaust housing and eroded the tips. Someone once told me that the BorgWarner/Schwitzers hold up better due to the angle the turbine inlet air hits the fins. If you compare the same size (A/R) turbine housing between the schwitzer and the garrett, the garrett is always 20-30% larger in diameter. I wonder if there's something to that now?
 
At least its not eroding now. Maybe Precision changed the alloy on the wheel. But it does look like it started to melt. Maybe I shouldn't peg the 2000* pyro for that long.
 
hmmm well since I am using mine as a primary, it rarely sees temps over 1100.

but if it starts to become I will know what the possible problem is.

till then...I love this turbo
 
I just put the housing back on it and I'll run it till its wore down enough to cause a problem.
 
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