Go Fast Bits Lightweight Aluminum Water Pump Pulley

2013–Present Subaru BRZ, Scion FR-S, Toyota 86

2223

Overview:

The Go Fast Bits Lightweight Aluminum Water Pump Pulley is a precision-engineered upgrade designed specifically for the Subaru BRZ, Scion FR-S, and Toyota 86 models from 2013 onward. This high-quality pulley reduces the rotating mass on the engine’s accessory drive system, delivering sharper throttle response and quicker acceleration without the need for additional modifications or tuning. Ideal for enthusiasts seeking a bolt-on performance enhancement, this pulley improves engine responsiveness and overall driving dynamics while maintaining reliability and accessory function.

By significantly lowering the rotating inertia, the engine feels more lively and willing to rev, providing a more engaging driving experience. This pulley is a straightforward upgrade that complements both street and track applications, making it a popular choice for owners looking to extract more performance from their naturally aspirated or lightly modified powertrains.

Key Features:

Engineered to deliver tangible performance benefits, the Go Fast Bits Lightweight Pulley offers the following advantages:

• Constructed from a single billet of 6061-T6 aluminum for strength and durability
• Precision CNC machined to exacting tolerances for perfect fitment and balance
• Up to 85% reduction in rotating inertia compared to the factory pulley
• Sharper throttle response and improved engine "urge" for a more lively feel
• Maintains proper function of driven accessories with no negative effects
• Direct bolt-on installation with no supporting modifications or tuning required
• Compatible with Subaru BRZ, Scion FR-S, and Toyota 86 models from 2013 and later
• Lightweight design contributes to overall engine efficiency and responsiveness

Construction & Design:

The pulley is crafted from premium 6061-T6 aluminum billet, a material known for its excellent strength-to-weight ratio and corrosion resistance. This choice of material ensures the pulley withstands the rigors of daily driving and high-performance use without compromising durability. The CNC machining process guarantees precise dimensions and a flawless finish, resulting in a perfectly balanced component that reduces vibrations and wear on the accessory drive system.

The design focuses on minimizing mass while maintaining structural integrity, allowing the engine to spin more freely. This reduction in rotating mass translates directly into improved throttle response and acceleration, enhancing the overall driving experience without sacrificing reliability.

Performance & Sound

By reducing the rotating inertia of the water pump pulley by up to 85%, this lightweight component allows the engine to rev more freely and respond more quickly to throttle inputs. Drivers will notice a more immediate and aggressive engine response, especially in the mid to high RPM range. While the pulley does not directly alter exhaust sound, the enhanced engine responsiveness can make the car feel more engaging and lively during spirited driving.

Installation & Fitment:

The Go Fast Bits Lightweight Aluminum Water Pump Pulley is designed as a direct replacement for the factory pulley on Subaru BRZ, Scion FR-S, and Toyota 86 models from 2013 onward. Installation is straightforward and typically requires only basic hand tools. No additional modifications, tuning, or supporting upgrades are necessary, making it an accessible upgrade for enthusiasts of all skill levels.

It is recommended to follow the manufacturer’s installation instructions carefully to ensure proper torque specifications and alignment. Professional installation is advised if you are unfamiliar with accessory drive components.

What's Included:

• One Go Fast Bits Lightweight Aluminum Water Pump Pulley (6061-T6 billet aluminum)
• Installation instructions

Ideal For:

This lightweight water pump pulley is ideal for Subaru BRZ, Scion FR-S, and Toyota 86 owners who want to enhance throttle response and acceleration without extensive modifications. It suits daily drivers seeking a livelier engine feel as well as enthusiasts who participate in track days or spirited driving. The pulley complements naturally aspirated setups and mild bolt-on modifications, providing a reliable and effective performance upgrade.

Go Fast Bits (GFB) is an Australian company specializing in turbo management products, including blow-off valves, boost controllers, diverter valves, and pulley kits. Their products are designed to enhance the performance and reliability of turbocharged engines, targeting both street enthusiasts and track racers seeking improved throttle response and boost control.