Running a non water cooled turbo

[TurboTJ]

I am thinking of pulling the turbo off of my jeep and putting it onto my talon. It is a garret BB turbo but im not sure which model. It is NOT water cooled and on my jeep, it bakes the oil in about 2K miles. What problems will I run into if I do put it onto my talon? Will I need to add an external oil cooler?

 

[ThingyNess]

If it's not water-cooled, it's not ball-bearing. Period.

Assuming it does in fact have a dry center section with no water ports, you won't run into any issues with it on your talon, as you already have an oil cooler from the factory. Just make sure you change your oil every 2-3k miles, and give it at least 60 seconds of idling before you shut down if you're been at all leaning into it.

I'd reconsider putting it on the talon until you actually figure out exactly what it is, though. Certain combinations of compressor/turbine wheel don't work too well on our engines. If it's designed for a jeep, it might be heavily biased toward the turbine side with not that much compressor flow, and spool quite slowly.

 

[TurboTJ]

Im not positive that it is garrett, but it is a BB. I haven't seen any water cooling ports. It is not made for a jeep but an aftermarked kit fitted to a jeep. It uses a T3 flange. It spools at about 2800 on my jeep 4.0L so i figured it would be a good match for my talon(my jeep redlines just over 5K so its a little big, and its a 12V). So you think that it may not work well?

 

[daren_p]

Think you'd need more specifics to see if it would be worth putting on the Talon, but if it spools at 2800 rpms on a 4.0L, its going to be pretty laggy on a 2.0L. Not sure if there is an exact conversion but take for example a 3065 takes about 500 rpms longer to spool on a 2.0L compared to a 2.4. Now work out what you said for spool time on the 4.0L

 

[TurboTJ]

Think you'd need more specifics to see if it would be worth putting on the Talon, but if it spools at 2800 rpms on a 4.0L, its going to be pretty laggy on a 2.0L. Not sure if there is an exact conversion but take for example a 3065 takes about 500 rpms longer to spool on a 2.0L compared to a 2.4. Now work out what you said for spool time on the 4.0L

I agree but it is a 4.0 12V so there is not much volumetric efficency there. It also has about 4 ft of piping between the head and the turbo along with a small exhaust leak. I think that the spool up will be fine. I am just worried that I will get my oil to hot or the turbo for some reason won't work efficently on the DSM.

 

[daren_p]

If its a T3 hotside, it should have the AR stamped somewhere on it, atleast this would be a starting point. If you can see any numbers on the center section or the manufacturer etc., this would also be helpful info. As for the oil cooled only, there are lots of guys running turbos on our cars that are oil cooled only so that shouldn't be much of an issue. Just make sure to turbo time or let it run for abit before you shut it down. Any ball bearing turbo I've seen also requires coolent lines as ball bearing center sections require very little oil, unlike a standard thrust bearing. For this reason the limited amount of oil isn't enough to cool the center section by itself.

 

[xioca]

You'll also will want to tap the oil feed line from the oil filter housing rather than the head.

 

[99gst_racer]

If it's not water-cooled, it's not ball-bearing. Period.

Incorrect. Turbonetics' new GTK line is BB and non-water cooled.


TurboTJ - Look on the turbine housing for a decimal number thats casted in. Also, if you can measure the inducer on the compressor wheel, that would help.

 

[daren_p]

Incorrect. Turbonetics' new GTK line is BB and non-water cooled.


TurboTJ - Look on the turbine housing for a decimal number thats casted in. Also, if you can measure the inducer on the compressor wheel, that would help.

Paul, don't want this thread way off topic but was wondering how the GTK line gets away with only an oil cooled center section? I would imagine it has different oil supply requirements compared to the Garrett BB center sections?

 

[99gst_racer]

Paul, don't want this thread way off topic but was wondering how the GTK line gets away with only an oil cooled center section?

They came here for a product seminar, and I asked that exact same question. They told me that they tested their single BB CHRA's as dry and wet, and they feel that the water-cooling does not have any affect on performance and/or longevity. They also tested dual BB and single BB units, and they claimed better results from their single BB CHRA. Their new patented ball bearing is supposed to be the latest and greatest. They claim it to be a totally different design than Garretts.

I would imagine it has different oil supply requirements compared to the Garrett BB center sections?

They use the same -3 supply line that you would use on a Garrett, and I assume they require the same amount of oil pressure, but I'm not sure about that.