Garrett GTX3584RS Super Core V: Specs, Fitment, and Is It Worth It

The Garrett GTX3584RS Super Core turbocharger is an 84mm-inducer high-output single turbocharger platform rated to 1200 horsepower, positioned as Garrett's top-tier performance offering in the GTX Racing Supercore series. Where the GT-Series covers street and moderate performance applications and the G-Series addresses high-output modular builds, the GTX3584RS occupies the bracket for serious single-turbo builds where maximum output from a single compressor wheel is the objective -- drag builds, time-attack cars, and high-power street cars that need more than a single GT or G-Series unit can provide in a standard frame. The GTX3584RS is sold as a super core (the CHRA and compressor housing, without a turbine housing) that is paired with a separately purchased turbine housing kit to complete the assembly. Two super core outlet configurations are available: a V-Band outlet and a Hose Bead outlet. Three turbine housing A/R options round out the catalog for this platform. This guide covers the complete Garrett GTX3584RS lineup, how to choose the right outlet type and A/R for the build, and what applications this Garrett turbocharger is designed to serve.

GTX3584RS Specifications and Super Core Configuration

The Garrett GTX3584RS uses an 84mm billet aluminum compressor wheel in a Super Core assembly. Key specifications:

• Compressor inducer: 84mm billet aluminum wheel (GTX aerodynamics, backswept blade design)
• Power rating: up to 1200 hp
• Super core outlet options: V-Band (846098-5002S) or Hose Bead (846098-5001S) -- both use the same internal compressor assembly; the difference is the compressor housing outlet connection type only
• Turbine housing kits: V-Band inlet / V-Band outlet in stainless steel, three A/R options: .83 (740902-0067), 1.01 (740902-0066), and 1.21 (740902-0052)
• Turbine housing material: Stainless steel (SS) -- required for high-EGT applications such as boosted gasoline engines at sustained high output

The GTX3584RS is a modular platform: the super core is one purchase and the turbine housing is a second, separate purchase. This allows the builder to select the turbine A/R independently from the rotating assembly based on the engine's exhaust characteristics and the target power band. The super core and housing mate via a standard connection, and the V-Band turbine inlet accepts a V-Band exhaust manifold or downpipe connection, which is now standard on custom fabricated performance exhaust manifolds for single-turbo builds.

The choice between the V-Band outlet (846098-5002S) and Hose Bead outlet (846098-5001S) super cores is determined by the charge pipe connection at the compressor housing outlet. The V-Band outlet mates to a V-Band coupler and charge pipe, which provides a secure, leak-resistant connection that handles the high boost pressures and thermal cycling of a 1200 hp build. The Hose Bead outlet mates to a silicone coupler clamped onto the hose bead, which is the traditional charge pipe connection method and is more widely compatible with off-the-shelf charge pipe systems. Both super cores use the same compressor wheel, bearing, and CHRA; the compressor housing geometry differs only at the outlet.

Top Picks: Garrett GTX3584RS Super Core and Turbine Housing Options

The Garrett GTX3584RS Super Core V-Band Outlet Super Core Assembly (846098-5002S) is the recommended super core for builds using a custom charge pipe with a V-Band connection -- the preferred setup for high-output single-turbo builds where boost pressure and charge pipe sealing integrity are priorities. For builds using a hose coupler at the compressor outlet, the Garrett GTX3584RS Super Core Hose Bead Outlet Super Core Assembly (846098-5001S) is the compatible variant that works with standard silicone couplers and hose clamps on the charge pipe connection.

For turbine housing selection, the Garrett GTX3584RS Turbine Housing Kit O/V V-Band / V-Band .83 A/R Stainless Steel (740902-0067) provides the tightest turbine housing in the range and delivers the fastest spool response -- appropriate for lower-displacement engines or builds prioritizing low-RPM boost onset at the cost of some top-end flow. The Garrett GTX3584RS Turbine Housing Kit O/V V-Band / V-Band 1.01 A/R Stainless Steel (740902-0066) is the most versatile mid-range option, balancing spool speed and peak flow for street and track use across a broad engine displacement range. The Garrett GTX3584RS Turbine Housing Kit O/V V-Band / V-Band 1.21 A/R Stainless Steel (740902-0052) provides the largest turbine flow area and is suited to high-displacement engines, higher RPM power bands, or builds prioritizing maximum top-end power and reduced turbine backpressure at peak output over low-RPM spool speed. Browse the complete Garrett GTX3584RS catalog for all super core and turbine housing configurations.

Match to the Build

• Single-turbo builds targeting 800-1200 hp on a large-displacement gasoline engine: The GTX3584RS is sized for builds where the power target exceeds what a single GT or smaller G-Series unit can cover; an 800-1200 hp single-turbo on a V8 or large inline-6 is the primary application; the 84mm compressor wheel delivers the mass flow these output levels require while maintaining the compact footprint of a single turbocharger
• Drag builds on a fixed-displacement gasoline engine where peak power and fast spool are both priorities: The three A/R options allow the drag builder to optimize the GTX3584RS for the track rather than accepting a single fixed turbine area; a .83 A/R build on a smaller displacement engine or a 1.01 A/R build on a larger engine both use the same super core, making the GTX3584RS a flexible platform for class-specific drag applications
• Time-attack or track builds where sustained high output under repeated acceleration events is required: The stainless steel turbine housings handle the elevated exhaust gas temperatures of sustained high-output gasoline operation that cast iron housings cannot withstand over repeated track sessions; the GTX3584RS with a stainless housing is the correct configuration for any build that will see repeated hard acceleration events at peak output levels
• Builds replacing an undersized or failed turbocharger in an existing single-turbo setup: The GTX3584RS serves as the top-tier replacement for builders who have exceeded the flow limit of an earlier single-turbo setup and need to step up to an 84mm compressor without moving to a larger frame or twin-turbo arrangement

Signs the Current Turbo Is Undersized for the Build

• Compressor surge at peak boost on the existing single turbo -- a rhythmic stutter or flutter at wide-open throttle at the point where the engine is making peak power; indicates the current compressor operating past its surge line; the GTX3584RS's 84mm compressor map extends well beyond what smaller-frame turbos can deliver at 800-1200 hp flow rates
• Power plateau below the build's fueling and boost potential -- the engine is fueled, boosted, and timed for more power than the data logs show it producing; the turbo reaching its maximum mass flow before the engine's thermodynamic potential is realized; a step to the GTX3584RS raises the compressor flow ceiling to match the build's other components
• Excessive turbine backpressure limiting top-end power on a high-output build -- the existing turbine housing too small for the engine's exhaust volume at peak RPM, creating turbine-side restriction that limits power; the GTX3584RS 1.21 A/R housing addresses this in builds where exhaust flow volume is the constraint at the top of the RPM range
• Heat soak at sustained high output with the existing turbo -- compressor operating in an inefficient region at high mass flow rates, producing hotter compressed air than the intercooler is designed to handle; a GTX3584RS sized correctly for the build's power target improves compressor efficiency and reduces charge air temperature rise at peak output

Frequently Asked Questions

How do I choose between the .83, 1.01, and 1.21 A/R turbine housings?

The turbine housing A/R selection is determined primarily by engine displacement, peak RPM, and whether the priority is low-RPM boost response or top-end flow. The .83 A/R produces the fastest spool because it has the smallest turbine flow area -- exhaust gas velocity through the turbine is highest, spinning the wheel faster at lower exhaust flow rates. This benefits lower-displacement engines or builds where boost onset at lower RPM is the priority. The 1.21 A/R has the largest turbine area and produces the least backpressure at peak RPM, which benefits large-displacement engines that generate high exhaust flow rates and builds prioritizing maximum power at the top of the RPM range. The 1.01 A/R is the most common general-purpose selection that works across a wide displacement range without strongly favoring either spool speed or top-end flow.

Bottom Line

The Garrett GTX3584RS Super Core is the 84mm, 1200 hp-rated top of the GTX Racing Supercore line. Select the V-Band outlet (846098-5002S) or Hose Bead outlet (846098-5001S) super core based on the charge pipe connection, then pair with the appropriate stainless turbine housing A/R -- .83 for fastest spool, 1.01 for general use, or 1.21 for large-displacement high-RPM builds. The result is a complete, configurable single-turbocharger assembly built for serious performance output.