Why liquid cool a turbo???? - PowerStrokeNation : Ford Powerstroke Diesel Forum
 
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post #1 of 9 (permalink) Old 10-19-2009, 12:54 AM Thread Starter
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Why liquid cool a turbo????

I don't get it......

Everyone says that it takes HEAT to build the boost and to get the turbo working...

So why do some manufacturers use coolant to cool the turbo's exhaust housing?

Why would you want to put this on a 6.0L when it seems to me like it would have the same effect as an EGR cooler....WAY too hot for the coolant, coolant would flash off...blow coolant everywhere...

2003 F-350 KingRanch 4x4
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post #2 of 9 (permalink) Old 10-19-2009, 12:59 AM
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Re: Why liquid cool a turbo????

cool air burns better.

08 F-250 CCSB king ranch erics tunes livewire
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post #3 of 9 (permalink) Old 10-19-2009, 01:09 AM
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Re: Why liquid cool a turbo????

I think the coolant is for keeping the bearings from overheating and give them longer life

06 F-350 CC Dually 4x4
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post #4 of 9 (permalink) Old 10-19-2009, 01:36 AM
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Re: Why liquid cool a turbo????

yea its for the bearings. it doesnt cool the charge.

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post #5 of 9 (permalink) Old 10-19-2009, 01:39 AM
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Re: Why liquid cool a turbo????

Waterl cooled turbos are nothing new. Mitsubishi Heavy Industries has been doing it for years.

97 crew cab shorty-4x4 Lots of mods .
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post #6 of 9 (permalink) Old 10-19-2009, 03:49 AM
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Re: Why liquid cool a turbo????

Yah my turbo on my sled has a water cooling jacket in the bearing housing also. Just supposed to keep bearings cooler and make the turbo last longer but I didn't hook them up because they heat up the coolant too much on a sled.

2005 F350 Crewcab 4x4 6.0L
64mm turbo, NADP race tranny, tuning by Eric at Innovative Diesel
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2004 F250 4x4 6.0L
Work in progress.......
EDE heads, cam, pistons, hybrid injectors, Hypermax rods,
2 really big turbos and a whole bunch of other crap to come.....
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post #7 of 9 (permalink) Old 10-19-2009, 11:18 AM
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Re: Why liquid cool a turbo????

Caterpillar has been doing it for years.

You will mostly see this on stationary countinuos prime movers, IE gensets that HAVE to run 24/7 to provide power. The idea is that if you keep heat moving away from the center support, the bearings do last longer. The 3516 CAT genset's I worked on, had outlet maximum EGT's of 950F. They were making around 38psi boost @ full load, and I would have 4 running while making hole. Takes alot of power to run a drilling rig.

Marc

2000 F350 CC dually auto
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Little air, fuel and oil and a BTS.

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post #8 of 9 (permalink) Old 10-19-2009, 12:32 PM Thread Starter
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Re: Why liquid cool a turbo????

Quote:
Originally Posted by UNCOOL View Post
Caterpillar has been doing it for years.

You will mostly see this on stationary countinuos prime movers, IE gensets that HAVE to run 24/7 to provide power. The idea is that if you keep heat moving away from the center support, the bearings do last longer. The 3516 CAT genset's I worked on, had outlet maximum EGT's of 950F. They were making around 38psi boost @ full load, and I would have 4 running while making hole. Takes alot of power to run a drilling rig.
Well this is where I seen that the exhaust housings were watercooled. Then I remember seeing that some turbo's for our 6.0L's were water cooled as well, and thought it was the exhaust housing, not the center section.

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post #9 of 9 (permalink) Old 10-19-2009, 12:43 PM
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Re: Why liquid cool a turbo????

It's best for all turbos to be water cooled. It helps tremendously to cool the bearings, even BB. Especially on daily driven vehicles that start/stop and get a lot of heatsoaking. The center cartridge is cooled, not the in/ex housings.

Late 84 300ZX's were watercooled, and were a big improvement over previous year models since they stopped seeing turbo failures afterwards.

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