These are Garrett's full ball bearing GT series turbos.

By design, the GT series represents the latest in high efficiency and broad flow range radial wheel designs. Specially design blade profiles allow the GT series wheels to out perform the competition in both pressure ratio and flow capabilities. Garrett GT turbos are the standard by which all others are judged. The cartridge assembly is a Garrett-patented full floating dual row ball bearing configuration. The major benefit of this design is that the mechanical efficiency of the complete rotating assembly is greatly improved by the fully supported ball bearing system, due to substantially lower frictional losses.

The result is faster spool up and quicker transient time to boost response. The full ball bearing angular displacement designed cartridge assembly also provides greatly increased thrust load capacity over that of conventional thrust bearing systems. In certain high thrust load long term durability test conditions the full ball bearing system exhibited over three times the thrust load capacity of a conventional bearing system.        

Improved Efficiency

New, efficient turbine stages deliver more power to your engine and allow Garrett turbochargers to spool up faster than ever. .

Increased Boost Capacity

Our performance turbochargers feature compressor wheels that can handle a higher boost pressure.

True Ball-Bearing Turbochargers

Thanks to our single-cartridge, dual ball-bearing technology, Garrett turbochargers generate far less frictional drag and are 10 times more durable than traditional journal-bearing turbochargers. While first developed for racing, over 100,000 ball-bearing turbos have been produced for OE applications, and are now available in a range of sizes for the street.

Proven Durability

Our turbochargers go through more than 20 durability and performance tests before they reach our customers. 

Before you can truly appreciate what a turbocharger does for an engine, you need to understand the basics of internal combustion.

Internal combustion engines are "breathing" engines. That is to say, they draw in air and fuel for energy. This energy is realized as power when the air-fuel mixture is ignited. Afterward, the waste created by the combustion is expelled. All of this is typically accomplished in four strokes of the pistons.

What a turbocharger does is to make the air-fuel mixture more combustible by fitting more air into the engine's chambers which, in turn, creates more power and torque when the piston is forced downward by the resulting explosion. It accomplishes this task by condensing, or compressing, the air molecules so that the air the engine draws in is denser. Now, how it does that is the real story here.