brand new 996tt gt30/k24 turbos bolt on - Make offer
#31
My comments come from my lack of knowledge as to how these things are really mated. It is my understanding thet the K24 is oil journal. I believe the 3071R to be BB and I know some companies make combination units with bb at one end and oj at the other. It was just an assumption (that's all) that each unit retained its original configuration. I have a similar hybrid that I think to be a 24/30 and I wish I REALLY knew what I have but my tuner has chosen to keep it proprietary, and I respect that.
#36
GT does NOT refer to ball bearing. The "R" in the turbo nomenclature refers to the ball bearing option. Right from Garrett's website:
Let's use the GT4294 as an example. This unit has a GT42 frame size turbine coupled to a 94mm (exducer diameter) compressor wheel.
If there's an "R" on the end of a model name, this means the unit is ball bearing. So, a GT4294 is not ball bearing; whereas a GT4294R is ball bearing.
The biggest change related to the nomenclature is this: units which utilize a 53mm turbine wheel (as measured at the inducer) are now referred to as "GT25" frame size, while units employing the slightly larger 53.85mm turbine wheel are now referred to as "GT28" frame size.
For those familiar with our product range, this means that the unit formerly known as "the GT28R" (part number 466541-1) is now in the GT25R family. More specifically, it is now a GT2560R model.
http://www.turbobygarrett.com/turbob...gt_basics.html
Let's use the GT4294 as an example. This unit has a GT42 frame size turbine coupled to a 94mm (exducer diameter) compressor wheel.
If there's an "R" on the end of a model name, this means the unit is ball bearing. So, a GT4294 is not ball bearing; whereas a GT4294R is ball bearing.
The biggest change related to the nomenclature is this: units which utilize a 53mm turbine wheel (as measured at the inducer) are now referred to as "GT25" frame size, while units employing the slightly larger 53.85mm turbine wheel are now referred to as "GT28" frame size.
For those familiar with our product range, this means that the unit formerly known as "the GT28R" (part number 466541-1) is now in the GT25R family. More specifically, it is now a GT2560R model.
http://www.turbobygarrett.com/turbob...gt_basics.html
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