New Garrett Line

Do you feel that you lost the freeze plug due to RPM and hydraulic pressure or would you say it was heat related, loosening the press fit? If RPM, how high and for how long were you holding this RPM? Just trying to establish some kind of threshold for failure, I realize every engine is different. Thanks, Rob.

P.S. I might put a pressure gauge in the rear of my head to monitor the bypass's function, see if I can learn something.
 
I don't really know, but think it is rpm. I was at 3700 when it let go, about 7/8 of the way down the track. I let off and still had a 11.91@119.
 
It would be nice to find out how the GT55 does in a setup. Especially the 94mm inducer version. It would also be nice to find out how the 4718 journal bearing compares to the 55R. I'm seeing 45psi out of the 4718 and wonder how the Gt55R would be. Of course I still ask for a pony at Christmas every year and that hasn't happened either.
 
I still hate Garrett turbos. Poor turbine entry angle, heavy turbine wheels, high priced and hard to find parts.

I have a melted GT4294 here. Where do I send it to get rebuilt for $223 like I just did for my HC5A? *hears crickets*
 
Ron,

MPI said awhile back he had a couple of them for over 1k hp trucks. I got the idea that he could get them to fit in CR's kind of like a s510 would.

Maybe he'll chime in.
 
I have a few customers running the GT55 94mm's. Tim Barber has made the most hp with one at 1090hp. According to Tim it spools almost instantly when you get on it at freeway speeds.
 
i love my garrett gt3788r it's been on my truck for over 2 years now and it hits 140.000rpms every pass down the track an still going love that thing!!
 
Cummins35.9 said:
Well i get garrett at distributor price so everything is way cheap so i guess price isnt a big issue here. Thats why i like running garrett because not many ppl do and someone has to test them lol. I've had alot of luck so far. Mine has very little play in the shaft and iv'e had it apart and back together almost 10 times trying different combinations with .89a/r, .99a/r exhaust, 59/82, 63.5/88, 67.8/94 comp wheels. Never did any balancing with any change. Every setup has seen over 50psi and 1750*F. So it has been heavily abused and hasn't failed yet.

Next setup will be the GTX4088 64.7mm wheel and housing to see if it really is an improvement.
I have a gt4702 sitting under my bench(this thing is HUGE) id like to run as a primary with my gt37 frame. But more than likely i'll just rebuild a gt4202 and run with it.

Signature600- Man you've run like 100 different turbos. What all have you run? Sorry bout your luck with garrett. But we do have a cartridge exchange program that lets you trade your blown up or worn out one. Its half off or a little less i believe. What is the cause of failure of the 3 you've run?
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My first stage on my 7.3 is a GT4718. It's been working flawlessly for the past 2 or 3 years.
 
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Cummins35.9 said:
How bout the gt55 with 106mm?
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The 106 is kind of laggy, but better then the S500/S510's. I would suggest the 98mm GT55. Guys I deal with are working on them....should be cool to see.

The GTX turbos looks cool indeed and the compressor maps are quite awesome.... Anyone notice their are NO 2nd splitter blades. This is the first step in a TRUE change in turbo wheel design.

GarrettGTX-RTurboCompressorWheel%20copy.jpg
 
RonA said:
It would be nice to find out how the GT55 does in a setup. Especially the 94mm inducer version. It would also be nice to find out how the 4718 journal bearing compares to the 55R. I'm seeing 45psi out of the 4718 and wonder how the Gt55R would be. Of course I still ask for a pony at Christmas every year and that hasn't happened either.
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Are you talking the GT55-94R, or the GT55-94 non-ball bearing version??
 
supersmoke said:
Anyone notice their are NO 2nd splitter blades. This is the first step in a TRUE change in turbo wheel design.
Click to expand...

I had an idea this wheel design was coming awhile back, flow increase, the only question is; how will it effect velocity?
 
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