Competition BAll Bearing turbo for Cummins 5.9

[T. Baker]

Originally posted by CRoth - BD-Power

According to Garrett, the ball bearing turbos should actually be a heck of a lot stronger than a conventional free floating type. This is mainly due to the fact that there is no thrust bearing in a ball bearing setup. Actually there is but it is actually in the bearing assembly itself.



Most of the ball bearing chargers produced by Garrett were actually water cooled, in fact this one is not. For a high heat application I'd rather have the water cooled version. This is not to say that this charger won't work, it does work on the Ford pretty well.



The compressor wheel will flow 70 lbs/min @ 40psi.

Let me guess; You are going to sell them.

 

[CRoth - BD-Power]

Actually, nope. Just providing some helpful info.

 

[NVR FNSH]

Contaminated Lube Test - was the nemisis of the ball bearing turbos for production use when I did my engineering co-op at Garrett in '93. BB turbos worked great except for that test. Don't know if/how the problem was resolved for production use. Ceramic BB Air Cycle Machines (think turbocharger) have been used for a long, long time in aircraft environmental control systems (air conditioning/pressurization).



A ceramic ball bearing VNT turbo on my 24V - that would be sweet.



Brian

 

[HoleshotHolset]

The relatively big ball-bearing turbos from Turbonetics are running around $3000 (give or take an ounce... ) for the loaded versions.



Matt

 

[Diesel Freak]

Originally posted by CRoth - BD-Power



The compressor wheel will flow 70 lbs/min @ 40psi.

Is that 40 PSI at the intake manifold, or the compressor discharge?

 

[Diesel Freak]

I would like to use this turbo... but with a dual scroll housing, and a NewGen 2" wastgate. It is a T70

 

[HoleshotHolset]

Have you ever seen a T70?

They're not all that big (very similar in size to a HX-35), yet they flow quite nicely.



A friend of mine ('PHumblias' on the TDR) has a GMC Syclone that went 10. 97 in the 1/4 mile with a relatively small Turbonetics ball-bearing turbo on it.



Turbonetics' turbos for the gassers aren't generally pushed over 38 or 40psi..... something to think about.



Matt

 

[CRoth - BD-Power]

Originally posted by Diesel Freak

Is that 40 PSI at the intake manifold, or the compressor discharge?

At discharge.