The Garrett GTW3476R is a ball bearing turbocharger built for enthusiasts who want serious top-end power without stepping up to the bulk and lag of a larger frame turbo. Designed as Garrett’s GTW Series answer to the popular 5858-size turbo, it delivers high-flow performance at a more accessible price point. This is the turbo for builders chasing big horsepower numbers while retaining the quick-spooling response that ball bearing technology provides.
Specifications
- Compressor Wheel Inducer: 58.3mm
- Compressor Wheel Exducer: 76.4mm
- Compressor Wheel Trim: 58
- Turbine Wheel Inducer: 65.0mm
- Turbine Wheel Exducer: 56.6mm
- Turbine Wheel Trim: 76
- Bearing Type: Ball Bearing
- HP Capacity: 700HP potential flow
- Compressor Housing: T04S (4″ Inlet, 2.5″ Outlet) with cast-in anti-surge (Standard/Default), GT35 Size
- Turbine Housing A/R Option: .48 A/R — Available in T3 Inlet; 4 Bolt or V-Band Outlet
- Turbine Housing A/R Option: .63 A/R — Available in T3 Inlet; 4 Bolt or 5 Bolt Ford Style Outlet
- Turbine Housing A/R Option: .72 A/R — T25 Inlet; EWG 44 Port; 5 Bolt GT Outlet
- Turbine Housing A/R Option: .72 A/R — T3 Inlet; Cosworth Outlet
- Turbine Housing A/R Option: .82 A/R — Available in T3 Inlet; 4 Bolt, 5 Bolt Ford Style, or V-Band Outlet
- Additional Outlet Option: T3 Inlet, Welded GT 3″ V-Band Outlet (available with .63 or .82 A/R)
- Garrett P/N: GTW3476R
- Also Known As: GTW5857R
Performance & Application
Backed by a 700HP potential flow rating, the GTW3476R is engineered for builds targeting serious power levels while keeping ball bearing responsiveness in the mix. As a high-flow alternative to the traditional 5858-size turbo, it’s built for enthusiasts who want that class of flow capacity without the compromises of an oversized journal bearing unit. Selectable turbine housing A/R ratios and inlet/outlet configurations allow this turbo to be tailored to a wide range of manifold setups and wastegate arrangements. It’s a strong fit for anyone building toward big power with a turbo that can be configured to match their exhaust housing requirements.
Frequently Asked Questions
- What HP can the GTW3476R support?
- The GTW3476R carries a 700HP potential flow rating.
- Is the GTW3476R a ball bearing or journal bearing turbo?
- It is a ball bearing turbocharger.
- What does GTW5857R refer to?
- GTW5857R is an alternate name (alias) for the Garrett GTW3476R.
- What A/R ratios are available for the GTW3476R turbine housing?
- The turbine housing is available in .48, .63, .72, or .82 A/R, each with specific inlet and outlet configuration options.
For builders who want 5858-class flow with the response of a ball bearing core and the flexibility to configure the turbine housing to their exact setup, the Garrett GTW3476R delivers exactly that.
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