i was wondering why the garret turbos are liquid cooled. also i was wondering why a lot of guys do not run them? thanks

 

The liquid cooling is a feature on the ball bearing versions. It keeps the center section much cooler which allows the bearings and oil to be much cooler. Also, oil volume requirements are greatly reduced and eliminates the need to "cool down" at engine shut down to prevent oil coking. An added benefit is that in the winter, your heater starts to work much sooner!

A lot of guys do not run them as the larger turbos (gt45 vs s400 size of things) are very expensive. Also, the turbos are not standardized to our uses and require more work and parts to get them to fit up. In other words, it is not a "bolt on" affair. Also, the exhaust housings have small single sided wastegates when you can get them... most of the turbos use non-wastegated t-4 housings which is a turn off right there alone for the average user.

When you can get past those drawbacks, however, then the Garretts really shine.

 

yeah the fact that it would heat up in the winter quicker would really excite me! there is one on cummins forum for sale and it is the stage 3 set up i was just thinking about it i wont ever be over 550 horse so i think the stage 3 might be a good setup but for the money there is better options out there.