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01-15-2017, 02:55 PM
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#1
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Name: ShaferDiesel
Title: Way To Small!
Status: Not Here
Join Date: Nov 2012
Location: Linden TN
Member`s Gallery
Posts: 159
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Journal VS BB?
Hi guys,
I'm looking at playing with a turbo that I have been running for awhile, the engine setup is changing drastically and I thought I'd just give my turbos a little boost while I'm deep into things. Not having $3500+ to throw at a turbo right now, and having a full machine shop at my fingertips.... I am thinking of doing my own BB conversion to a journal turbo.
The turbo in question is a 88x118 comp with a 110x102 turbine. How much easier does a BB turbo light up? Is there any real noticeable difference at all or is it all ricer hype? I've close to doubled the airflow on this engine and I'm looking real hard at running this as a single and any thoughts would be appreciated!
__________________
92 Toyota 1-Ton, Detroit Diesel 3-53, 155 injectors, T04B98/TV8405 Twin Setup, Allison 1000 6spd, 4.10 Dana 70 with original toyota hubs brakes & wheels.
Soon to be common rail injected!
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01-16-2017, 07:59 AM
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#2
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Name: zfaylor
Title: Comp Diesel Sponsor
Status: Not Here
Join Date: Nov 2010
Location: P-TOWN!, Indiana
Member`s Gallery
Posts: 5,024
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I wouldn't waste my time. I am not impressed with ball bearing turbochargers whatsoever. A lot of marketing hype is involved with ball bearings. We see more low mile ball bearing units fail than anything. No customer has raved about spool up of their ball bearing units. The converted ones sound like a real treat.
What ball bearings do you plan to use that are rated to withstand 100k+ rpms?
__________________
2015 half ton heavy chevy
81 Fairmont LS project
Many yard ornament projects...
North American Turbo
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03-19-2017, 04:08 PM
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#3
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Name: ShaferDiesel
Title: Way To Small!
Status: Not Here
Join Date: Nov 2012
Location: Linden TN
Member`s Gallery
Posts: 159
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Why do I see ball bearings on the 2500HP pulling tractors then? Not knocking what you have said at all, just trying to figure this big HP **** out lmfao!
After multiple calls to multiple companies and not getting anywhere, I've settled on this little bearing from VXB, It's good for over 100K RPM, able to withstand the heat, I'm going to order two and try it out. We'll see what happens lol!
Next part I'm looking at is a billet compressor wheel, I've found this **** Billet Compressor Wheel Garrett GT4718 763739-0001 88/118mm 6+6 w/ Extended Tip | eBay but really want an 11 blade since I'm running this as a single, are there any 88x118 9.5mm bore 11 blades available?
__________________
92 Toyota 1-Ton, Detroit Diesel 3-53, 155 injectors, T04B98/TV8405 Twin Setup, Allison 1000 6spd, 4.10 Dana 70 with original toyota hubs brakes & wheels.
Soon to be common rail injected!
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03-19-2017, 04:54 PM
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#4
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Name: nwpadmax
Title: Turbo Geek
Status: Not Here
Join Date: Nov 2006
Location: Out in the shop
Member`s Gallery
Posts: 3,128
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BBs are used on the tractors where the compressor creates so much thrust load that JB's get wiped out in one pass. The huge single chargers need them.
BBs will NOT tolerate dirty oil. Period.
__________________
"What I said does equate too what can happen....Alote."
Last edited by nwpadmax; 03-19-2017 at 04:56 PM.
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03-19-2017, 05:04 PM
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#5
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Name: ShaferDiesel
Title: Way To Small!
Status: Not Here
Join Date: Nov 2012
Location: Linden TN
Member`s Gallery
Posts: 159
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Has anyone ever run a separate filter and oil cooler on their turbos?
__________________
92 Toyota 1-Ton, Detroit Diesel 3-53, 155 injectors, T04B98/TV8405 Twin Setup, Allison 1000 6spd, 4.10 Dana 70 with original toyota hubs brakes & wheels.
Soon to be common rail injected!
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03-19-2017, 05:07 PM
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#6
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Name: Smokem
Title: Turbler
Status: Not Here
Join Date: May 2006
Location: Iowa
Member`s Gallery
Posts: 5,565
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Angular contact ball bearings are used for their increased thrust load capacity, whether it be to counteract load imbalance between the compressor and turbine, or oil film breakdown due to harmonic resonance while exceeding the supersonic threshold.
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03-19-2017, 05:37 PM
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#7
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Name: ShaferDiesel
Title: Way To Small!
Status: Not Here
Join Date: Nov 2012
Location: Linden TN
Member`s Gallery
Posts: 159
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__________________
92 Toyota 1-Ton, Detroit Diesel 3-53, 155 injectors, T04B98/TV8405 Twin Setup, Allison 1000 6spd, 4.10 Dana 70 with original toyota hubs brakes & wheels.
Soon to be common rail injected!
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03-19-2017, 06:53 PM
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#8
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Name: nwpadmax
Title: Turbo Geek
Status: Not Here
Join Date: Nov 2006
Location: Out in the shop
Member`s Gallery
Posts: 3,128
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All of the turbo BBs I have seen, have a cage to separate the balls.
__________________
"What I said does equate too what can happen....Alote."
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03-19-2017, 10:27 PM
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#9
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Name: f6jbob
Title: Too Much Time
Status: Not Here
Join Date: Apr 2006
Location: western Wi.
Member`s Gallery
Posts: 1,153
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Johnny at Stainless Diesel has experience with BB turbos.
__________________
2006 RCSB Dodge Goerend tranny and converter, Stainless Diesel twins and exhaust manifold, B&B intake manifold, T&C Diesel CP3, rail and dual prv, Hellman intercooler, Porting by Joker Fabrication, Isspro Performax gauges, AirDog fuel pump. Supported by Pure Diesel Power, Garmons Diesel Performance, Blacks Diesel Performance and above vendors.
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03-20-2017, 10:40 AM
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#10
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Name: ENafziger
Title: Too Much Time
Status: Not Here
Join Date: Oct 2008
Location: Knoxville, TN
Member`s Gallery
Posts: 843
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Have you looked at air bearings? Just an honest question...I have no idea whether they are a good application for this or not. But they do high speed well.
__________________
2006 Dodge 3500 SRW, 62/476 twins, Flux 2.5s, G56, Carli 2.65s, etc. Jer. 33:3
2003 Ford Excursion, '97 Cummins P-Pump, HX35/475 twins, studded and o-ringed, ZF6/271, forged Rickson 19.5s.
1991.5 W250, NV4500, Rickson 19.5s, HE351, long travel suspension build
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