02-25-2013, 02:59 PM | #1 |
Drives: 2010 Camaro SS Join Date: Dec 2012
Location: OKC
Posts: 74
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Ball bearing vs journal bearing turbos?
So what are the main differences between ball bearing and journal bearing turbos? I know that ball bearings spool faster. But is there any difference in the reliability of them? Does one last longer than the other?
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02-25-2013, 03:18 PM | #2 |
Drives: 72 nova 10.5 tire car Join Date: Jan 2013
Location: indiana
Posts: 37
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ive used both on a drag radial car a journal bearing and a billet wheel.
most of promod guys are running billet wheels and journal bearings and some of us drag radial guys are also. spooling the turbo has alot to do with the converter and the tune up and a/r ratio |
02-25-2013, 03:36 PM | #3 |
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Drives: 2012 Camaro RS, RX supercharged Join Date: Dec 2009
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Agree w/roller.
We see longer life on the street w/ball bearing vs journal, but alot has to do with the manufacturer of the turbo and the oiling & return system used. Roller, you guys make so much power you dont need to wait to spool!!! Nice to see another actual drag racer on here....only a handfull on here as members. |
02-25-2013, 03:55 PM | #4 |
Drives: 2010 Camaro SS Join Date: Dec 2012
Location: OKC
Posts: 74
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The kit I was looking into is the ips entry kit with journal bearings. They said the kit is really reliable but I was told by a guy with the granatelli kit not to get journal bearings. They are Garrett turbos. How reliable for a street car/dd?
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02-25-2013, 04:19 PM | #5 | |
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Like was mentioned, make sure you have a good return circuit so oil isn't building up at the turbo, and that they are properly sized so you are not over/under spinning them... Taking a turbo kit designed for a 376 cubic inch engine and tossing 427 CI worth of exhaust at them isn't so good for them... ask me how I know... The IPS kit have been reliable based on talking to a few guys with it... IPS did their homework...
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If the car feels like it is on rails, you are probably driving too slow. -Ross Bentley
Horsepower is how fast you hit the wall. Torque is how far you take the wall with you. “If everything seems under control, you're just not going fast enough.” Mario Andretti If you can turn, you ain't going fast enough... |
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02-25-2013, 04:30 PM | #6 | |
Drives: 2010 Camaro SS Join Date: Dec 2012
Location: OKC
Posts: 74
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02-25-2013, 08:59 PM | #7 | |
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If the car feels like it is on rails, you are probably driving too slow. -Ross Bentley
Horsepower is how fast you hit the wall. Torque is how far you take the wall with you. “If everything seems under control, you're just not going fast enough.” Mario Andretti If you can turn, you ain't going fast enough... |
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02-26-2013, 08:42 AM | #8 | |
Drives: 72 nova 10.5 tire car Join Date: Jan 2013
Location: indiana
Posts: 37
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i took the last 5 yrs off to regroup and build the new turbo combo and to focus on my bussines and family. getting ready to get back into x-275 stuff and the new nmca class. and your right we have a lot of power and can spool pretty quick. can you recomend a few companys that build some bolt on turbo kits for theses cars for daily driver |
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02-26-2013, 08:46 AM | #9 |
Tally Ho!
Drives: 13 2SS/RS 6M, 05 Mitsubishi Evo 8 Join Date: Jan 2013
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Garrett turbos are choice. You can't go wrong with a Garrett. Since you are speaking about a street/dd, it won't matter much whether you get a BB or journal style bearing. In fact, on the Garrett site, you can choose either. But for me, BB is the choice.
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02-26-2013, 08:56 AM | #10 |
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IPS does a good job, turbonetics, stay clear of STS. We do custom ones but have not released a kit yet.
For heads up racing we go back to the Keen bro's in 10.5" but most of what we do is NHRA TD, SC, SG, SS, and stock. Some comp eliminator. Used to run the IHRA divisional and National circuit as well but no time for that now. Won a couple National Championships last season in NHRA (SG & SS) but last World was 2011 in Pomona. Browse through here and there is a small handfull of other true competitive drag racers to get to know. |
03-02-2013, 03:06 PM | #11 |
Drives: it changes Join Date: Nov 2010
Location: Norn Iron
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If you're auto ( ie mostly higher rpm and foot never leaves the floor ), only do straight lines, and arent using huge boost then it would maybe be hard to warrant the extra cost for a BB unit.
But at higher boost pressures, the BB units handle it better. Thrusts on oil journals are less reliable. If you've a manual trans, and lift off changing gear, or around a racetrack, then the faster response of a BB unit would well be worth having. |
03-03-2013, 08:47 AM | #12 |
Drives: 2006 Z06 Join Date: Oct 2010
Location: Gilbert, AZ
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Totally depends on the size of turbos. Running twin 56mms on an auto car we have near instant boost and are making full boost by 2300rpm. That is twin BW 56mm conventional bearing turbos.
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03-04-2013, 12:25 AM | #13 |
Drives: 2010 Camaro SS Join Date: Dec 2012
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I just want a nice dd/street car. I just need everything to last. I think they got 650rwhp on 9 psi on a stock l99 with 3 inch catback with the ips entry level kit, no ball bearing or billet. Just basic turbos. If the journal bearing will last at that boost level then by all means that's fine with me. I'd like to get 700 eventually with about 10-11 psi but no more than that. This car does 85% of its driving just cruising at under 2k rpm. What would be the best option?
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03-04-2013, 09:50 AM | #14 | |
Drives: it changes Join Date: Nov 2010
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But just depends on your budget and whether it actually matters or not. |
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