What is the significance of the 0.64 A/R ratio on this turbocharger?

The A/R ratio of the turbine housing affects how quickly the turbocharger spools up and its overall power band. A 0.64 A/R generally offers a good balance, providing quicker response than larger A/R housings while still supporting higher peak power than smaller ones.

What does the 'low boost actuator' do?

The low boost actuator is a component that helps regulate the maximum boost pressure the turbocharger produces. This specific actuator is designed for applications where controlled, lower boost levels are desired for engine safety and drivability.

What other modifications are typically needed when installing this turbocharger?

Installing a turbocharger like this often requires supporting modifications. These can include upgrades to the fuel system, an engine management system for tuning, and potentially changes to the exhaust and intake systems to optimize airflow.

Garrett GT2871R Turbocharger 0.64 A/R 836026-5021S

Name: Garrett Turbocharger 0.64 A/R (480009-9 Low Boost Act) - GT2871R
Brand: Garrett
SKU: garrett-garrett-turbocharger-0-64-a-r-480009-9-low-boost-act-gt2871r-t14-407550
Price: 1634.96 USD
Availability: BackOrder

Garrett Turbocharger 0.64 A/R (480009-9 Low Boost Act) - GT2871R

$1634.96

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Garrett GT2871R Turbocharger 0.64 A/R (480009-9 Low Boost Act) - GT2871R

Key Features

Verified fitment for Garrett GT2871R turbocharger.
Features a 0.64 A/R turbine housing for balanced spool and top-end power.
Includes the 480009-9 low boost actuator for controlled boost management.
Designed for significant engine performance upgrades.
Robust construction suitable for increased boost levels.
Not CARB approved; cannot ship to California.

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Product Details

The Garrett GT2871R turbocharger features a 0.64 A/R turbine housing, a key spec that influences how quickly the turbo spools up and where its power band sits. This particular unit is equipped with the 480009-9 low boost actuator, designed to manage boost pressure effectively for applications seeking controlled power gains. It's a well-known choice for enthusiasts looking to significantly upgrade their vehicle's performance by forcing more air into the engine.

Built around the GT2871R core, this turbocharger is known for its robust construction and ability to handle increased boost levels compared to stock units. The turbine housing's A/R ratio of 0.64 is a balance point, offering a quicker response than larger A/R housings while still supporting higher peak power than smaller ones. This makes it a versatile option for many engine builds where a blend of responsiveness and top-end power is desired. The included low boost actuator helps ensure that boost pressure is regulated within a safe and effective range, preventing over-boosting and maintaining engine health.

When considering a turbocharger upgrade like the GT2871R, it's important to plan for supporting modifications. This often includes fuel system upgrades, an engine management system to properly tune the air-fuel ratios, and potentially exhaust and intake modifications to optimize airflow. While this turbocharger is not CARB approved and cannot be shipped to California, it represents a solid option for performance builds in other regions. Always consult with a professional builder or tuner to ensure this turbocharger is the right fit for your specific engine and performance goals.