The Garrett GT2056 turbocharger is the biggest turbo in the GT20 family. With a 55 Trim compressor this turbo will give you 260 HP. Recommended for engines in the range 1400cc - 2000cc this is the turbo you can find under the bonet of many different cars. Also this is a popular turbo to turbocharge motorcycles with. Will work well for anyone looking for 140 - 260 HP and have good spoolup also.
CHRA: 433289-234
Bearing: Journal
Cooling: Oil
Compressor
Inducer: 41.5 mm
Exducer: 56.0 mm
Trim: 55
A/R 0.53
Turbine
Wheel: 47.0 mm
Trim: 72
A/R: 0.46
Wastegated
If we have a look at the compressor map we can see that this turbo is capable to reach almost 300 HP. And if you need to you can push the GT2056 to over 2 Bar of boost pressure. But it wont give you any more air flow. So no more power.
The oil outlet thread is the same M6x1.0 that the other GT20 turbochargers use. But you get two options with oil inlet the ordinary M10x1.0 (F) or M14x1.5 (M)
But still the Garrett GT2056 turbo is not watercooled. It's not a big deal, but if you don't like to do cool down everytime you shut of you're engine. You might want to consider some other turbo.
TITLE | Garrett GT2056 Turbo Compressor Wheel | |
OE NO | 436563-0001 | |
APPLICATION | Suitable for Garrett GT2056 Turbochargers | |
MATERIAL | Aluminum Alloy | |
DIAMETER (A/C) | 41.55 mm / 56 mm | |
HUB LENGTH (D) | 31 mm | |
TIP WIDTH (B) | 8.3-3.6 mm | |
SHAFT SIZE (E) | 5.083 mm | |
BOTTOM | Superback | |
BLADES | 6/6 |
TITLE | Garrett GT17 GT20 Turbo Turbine Wheel | |
OE NO | 434715-0013 / 434715-0027 | |
APPLICATION | Suitable for Garrett GT17 GT2056S Turbochargers | |
MATERIAL | Inconel | |
DIAMETER (A/B) | 40 mm / 47 mm | |
TIP HEIGHT (C) | 6.1 mm | |
JOURNAL BEARING (D) | 7.88 mm | |
COMP. WHEEL BORE (E) | 5.09 mm | |
BLADES | 12 |
| Service Kit | ||
| Component | Quantity | Item |
Journal bearing | 1 | 1 |
Retaining ring, jnl/brg | 1 | 2 |
Pin, anti-rotation, jnl/brg | 1 | 3 |
Piston ring, t/end | 1 | 4 |
| Thrust bearing | 1 | 5 |
Bolt, seal plate/th brg | 4 | 6 |
Thrust spacer | 1 | 7 |
Piston ring, c/end | 1 | 8 |
O ring, seal plate/brg hsg | 1 | 9 |
Thrust collar | 1 | 10 |
| Locknut/shaft | 1 | 11 |
| O ring, c/hsg | 1 | 12 |
| Bolt, c/end | 6 | 13 |
| Bolt, t/end | 4 | 16 |
I also have more technical pages for you that will come in handy. They will be of great help when looking at compressor maps Use the conversion tools And you will be able to calculate airflow, pressure and HP figures for the turbocharger you are interested in.