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Ball bearing vs bush bearing,which is more resistent?...

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Ball bearing vs bush bearing,which is more resistent?...

Post by VEEDUBBED on Sun Mar 29, 2009 8:51 am

As title chaps,
I'm wondering what type of turbo would take more abuse? like out of balance shaft/wheels,dirty oil,running no dump valve etc.
Do the GT series normally have a 360 degree bearing fitted?,is it needed?.
What's your thought on a pre turbo micro filter?.
I'm a total noob when dealing with ball bearing turbos..
Thoughts? Very Happy

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Re: Ball bearing vs bush bearing,which is more resistent?...

Post by JNLRacing on Sun Mar 29, 2009 11:03 am

Journal bearing runs dry seizes buggers itself you rebuild it. ball bearing turbo sh1ts itself and you are buying a new one. 360 degree thrust bearings are for journal bearings instead of the conventional 270 degree ones.

Standard Journal bearing is cheapest.
360 degree journal spools up quicker and can make more power due to efficiency
ball bearing spools up even quicker and makes more power again. obviously is also the most expensive.

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Re: Ball bearing vs bush bearing,which is more resistent?...

Post by kevhaywire on Mon Mar 30, 2009 12:35 am

Just to add, with ball bearing units you can replace just the centre housing and keep your existing compressor and turbine housings to reduce the cost.

I got a GT3076R CHRA for £550 new. Which is a big saving on the £1300 you'd normally pay for the complete turbo.

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Re: Ball bearing vs bush bearing,which is more resistent?...

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