Garrett G42-1585 G-Series II Super Core

SKU: 938339-5003S

Garrett G42-1585 G-Series II Super Core High-Performance Turbocharging for Peak Power

The Garrett G-Series II Super Core, engineered for enthusiasts and racers seeking top-tier horsepower and reliability. Designed for 2.0L to 8.0L engines, this turbocharger delivers up to 1585 horsepower, making it the go-to choice for high-performance builds. With advanced compressor and turbine aerodynamics, a robust Mar-M alloy turbine wheel, and a fully machined speed sensor port, the G42-1585 stands out as a high-output solution for street, track, or drag applications.

Why Choose the Garrett?

The G42-1585 combines cutting-edge technology with proven durability to meet the demands of high-horsepower builds. Its compact design ensures compatibility across a wide range of vehicles, while the advanced aerodynamics provide efficient airflow and rapid spool-up for responsive power delivery. The stainless steel turbine housing withstands temperatures up to 950°C (1742°F), ensuring long-lasting performance under extreme conditions. Whether you’re building a drag car, drift machine, or street beast, this super core delivers the power and precision you need.

Key Features and Specifications

• Horsepower Capability: Supports 475–1585 HP, ideal for 2.0L–8.0L engine displacements.
• Compressor Wheel: Forged, CNC-machined with advanced aerodynamics for up to 30% more horsepower output compared to previous generations.
• Turbine Wheel: Constructed from Mar-M super alloy, capable of withstanding up to 1050°C, with 10% increased flow over GTX Gen II models.
• Bearing System: Dual 10mm ball bearing cartridge (same as GTX42) for reduced friction and enhanced durability.
• Speed Sensor Port: Fully machined for optional speed sensor installation (sensors sold separately: G781328-0003, G781328-0004, or G923586-0003).
• Oil Requirements: Recommended 40–45 psi oil pressure with a 0.040” orifice restrictor; compatible with -3AN or -4AN oil feed lines.
• Turbine Housing Compatibility: Requires separate purchase of V-band, open, or free-float turbine housing (not interchangeable with GTX or GT housings). V-band inlet measures 3.6” (92mm).
• Rotation Options: Available in standard rotation; reverse rotation not offered for this model.
• Part Number: 938339-5003S (Super Core only, does not include turbine housing or wastegate actuator).

What’s Included in Your Purchase

• Garrett G42-1585 G-Series II Super Core (SKU 938339-5003S): Includes the compressor housing, center housing rotating assembly (CHRA), and backplate. Turbine housing and wastegate actuator must be purchased separately to match your specific application.
• Pre-Assembled and Calibrated: Factory-balanced for immediate installation, reducing setup time.
• Warranty: Covered by Garrett Motion’s standard manufacturer warranty (contact Garrett or your distributor for details).

Vehicle Fitment

The Garrett G42-1585 G-Series II Super Core is compatible with a wide range of vehicles and engine configurations, particularly suited for custom and aftermarket turbo setups. Below is a list of example vehicles and engine types known to benefit from G-Series turbochargers, based on real-world applications:

• Audi S3 (2000–2006, 1.8T or 2.0T engines): Capable of supporting 1250+ HP in drag applications with proper tuning and supporting mods.
• Honda Civic (1996–2005, K24 engine): AWD builds achieving 800+ HP with a G42 turbo.
• Toyota 86 (2012–2021, 3.0L 2JZ engine): Proven to deliver 1000+ HP at 30 PSI in drift builds.
• Ford Falcon FG F6 (2008–2014, Barra engine): Transformed into 1000+ HP setups with Garrett turbos.
• Ferrari 308 GTBi (1981–1985, Honda K24 swap): Modernized with a G42 turbo for high-performance output.
• Mazda FC RX7 (1986–1992, 20B 3-rotor engine): Drift builds with Garrett turbocharging.
• Ford F-100 (1953–1956, custom engine swaps): Achieved 700 HP with a G42 turbo.
• Bedford Van (custom Barra engine): 1100 HP sleeper builds with Garrett turbos.
• BMW E46 (1998–2006, 3.0L 2JZ swap): Formula Drift competition cars with G-Series turbos.
• Toyota JZX100 Mark 2 (1996–2000, 2JZ engine): Formula Drift Japan champion builds with G42-1200, adaptable to G42-1585.

Note: Fitment depends on engine, tuning, and supporting modifications. Consult with a professional tuner or Garrett distributor to confirm compatibility for your specific year, make, and model.

Installation Notes

• Turbine Housing: Must be purchased separately (e.g., 757707-0014 for 1.01 A/R T4 divided entry, V-band exit).
• Oil System: Use a high-quality oil filter meeting OEM specifications and verify oil pressure post-restrictor to prevent turbo damage.
• Optional Accessories: Speed sensors and ceramic exhaust coatings (available in black or silver) can enhance performance and durability but add 1–2 weeks to lead time.
• Professional Installation Recommended: Proper setup, tuning, and supporting modifications are critical for achieving rated horsepower and ensuring turbo longevity.

Why the G42-1585 Stands Out

The G42-1585 G-Series II Super Core is designed for performance-driven applications, from street cars to professional race setups. Its advanced aerodynamics and robust construction deliver unmatched power potential, making it a favorite among builders like FuelTech, StanceWorks, and Monsta Torque. Whether you’re chasing 1000+ HP in a drag Audi S3 or modernizing a classic Ferrari, this turbo provides the reliability and performance needed to dominate.

Disclaimer: Horsepower ratings depend on engine setup, tuning, and supporting modifications. Always consult a professional for installation and tuning to achieve desired performance.