Garrett

Garrett GTX3071R Gen II 54mm Turbocharger

$1,984.74

COMPRESSOR MAP EXHAUST FLOW CHART FLANGE DIAGRAM (PDF)

ROTATION

TURBINE HOUSING

PRODUCT DETAILS

The GTX3071R Gen II 54mm is a Garrett GTX Gen II mid-frame ball bearing turbo with Gen II compressor aerodynamics and a fully machined speed sensor port, offered in standard and reverse rotation.

Garrett rates the GTX3071R Gen II 54mm for 340 to 675 horsepower on 1.8 to 3.0 liter engines.

Key Specifications

Series — GTX Gen II
Frame size — 30 frame
Horsepower rating — 340–675 hp (Garrett rating)
Engine displacement — 1.8–3.0 L
Compressor wheel — 54 mm inducer, 71 mm exducer
Turbine wheel — 60 mm inducer, 55 mm exducer
Bearing — Ball bearing
Maximum turbo speed — 140,000 rpm
Supercore part number (standard rotation) — 851154-5002S
Supercore part number (reverse rotation) — 844621-5003S

Turbine Housing Options

Each turbine housing is listed by A/R (area-to-radius ratio), inlet flange, outlet and wastegate type. "Internal" housings have a built-in wastegate; "External" housings are free-float designs that require an external wastegate.

Garrett part number	Rotation	A/R	Inlet	Outlet	Wastegate	Divided	Notes
740902-0009	Standard	0.63	T3	V-Band	External	No	—
740902-0008	Standard	0.82	T3	V-Band	External	No	—
740902-0007	Standard	1.06	T3	V-Band	External	No	—

771300-0006	Standard	0.63	T3	5-bolt	Internal	No	Turbine assembly does not include bolts, clamps, or actuator
771300-0005	Standard	0.82	T3	5-bolt	Internal	No	Turbine assembly does not include bolts, clamps, or actuator
771300-0004	Standard	1.06	T3	5-bolt	Internal	No	Turbine assembly does not include bolts, clamps, or actuator

740902-0036	Standard	0.61	V-Band	V-Band	External	No	—
740902-0035	Standard	0.83	V-Band	V-Band	External	No	—
740902-0034	Standard	1.01	V-Band	V-Band	External	No	—

740902-0053	Reverse	0.61	V-Band	V-Band	External	No	—
740902-0054	Reverse	0.83	V-Band	V-Band	External	No	—
740902-0055	Reverse	1.01	V-Band	V-Band	External	No	—

Important Information

Garrett calculates its horsepower ratings from the compressor map choke flow, which represents the potential flywheel horsepower of the turbo. Actual results depend on the engine, supporting modifications and calibration.

Garrett sets the maximum allowable speed for this turbo at 140,000 rpm. Operating above that speed can damage the turbo and cause premature failure. A turbo speed sensor (sold separately) lets you monitor shaft speed.

For race vehicles only. Not for use on public roads.