The Garrett GTX3071R Gen II supercore is a complete ball-bearing turbocharger supplied without a turbine housing, ready to pair with the GT30 / GTX30 housing that suits your manifold and power goals. With a 54mm compressor wheel on the GT30 turbine, it's a responsive all-rounder that Garrett rates at 340–675 hp for engines from 1.8 to 3.0 litres.
Gen II compressor wheel aerodynamics deliver up to 20% more power than the original GTX3071R, with a fully machined ported shroud for strong surge resistance.
Key features
- Gen II forged, fully machined compressor wheel aerodynamics
- 8 mm dual ceramic ball bearing cartridge, oil and water cooled
- Fully machined compressor inlet, outlet and ported shroud
- High-flow Gen II compressor housing
- Fully machined speed sensor port (plugged from factory), accepts the Garrett speed sensor kit, sold separately
- Outline-interchangeable with GT and GTX Gen I turbos, so it suits existing piping
- Compatible with all existing GT30 / GTX30 turbine housing kits
Please note: turbine housing is not included. Some product photos show the turbo with a housing fitted. Standard rotation. Maximum allowable shaft speed is 140,000 rpm.
Specifications
| Garrett part number |
851154-5002S |
| Bearing system |
Dual ceramic ball bearing |
| Cooling |
Oil and water |
| Power rating |
340 – 675 hp |
| Engine displacement |
1.8 – 3.0 L |
| Compressor inducer / exducer |
54 mm / 71 mm |
| Turbine inducer / exducer |
60 mm / 55 mm |
| Frame |
GT30 / GTX30 |
| Rotation |
Standard |
| Max shaft speed |
140,000 rpm |
Compatible Garrett turbine housings (sold separately)
| Part number |
A/R |
Inlet |
Outlet |
Wastegate |
| 740902-0009 |
0.63 |
T3 |
V-band |
External (free float) |
| 740902-0008 |
0.82 |
T3 |
V-band |
External (free float) |
| 740902-0007 |
1.06 |
T3 |
V-band |
External (free float) |
| 740902-0036 |
0.61 |
V-band |
V-band |
External (free float) |
| 740902-0035 |
0.83 |
V-band |
V-band |
External (free float) |
| 740902-0034 |
1.01 |
V-band |
V-band |
External (free float) |
| 771300-0006* |
0.63 |
T3 |
5-bolt |
Internal |
| 771300-0005* |
0.82 |
T3 |
5-bolt |
Internal |
| 771300-0004* |
1.06 |
T3 |
5-bolt |
Internal |
All housings are single (undivided) entry. *771300 internal-gate housings do not include bolts, clamps or actuator.
Garrett performance products are intended for off-road / motorsport use. Check compliance requirements before road use.
