Perrin Lightweight Crank Pulley
2013–2016 Scion FR-S / 2013–2020 Subaru BRZ / 2017–2020 Toyota 86
Part #: PSP-ENG-101BL
Overview
The Perrin Lightweight Crank Pulley is a precision-engineered upgrade designed to reduce the rotational mass of your engine’s crankshaft pulley. By lightening this critical component, the pulley frees up horsepower and improves throttle response, delivering a noticeable performance enhancement with every acceleration. This pulley is an ideal choice for enthusiasts looking to extract more power and responsiveness from their naturally aspirated or turbocharged Scion FR-S, Subaru BRZ, or Toyota 86 without extensive engine modifications.
Manufactured by Perrin Performance, a trusted name in the aftermarket tuning community, this lightweight crank pulley offers a direct bolt-on fitment for model years 2013 through 2016 on the Scion FR-S, 2013 through 2020 on the Subaru BRZ, and 2017 through 2020 on the Toyota 86. It is a reliable upgrade that complements other performance modifications and enhances the overall driving experience.
Key Features
Engineered for performance and durability, the Perrin Lightweight Crank Pulley includes the following key features:
- Constructed from high-quality CNC-machined aluminum for precise tolerances and lightweight strength
- Blue anodized finish for corrosion resistance and a distinctive appearance
- Reduces rotational mass to improve engine responsiveness and throttle input
- Direct bolt-on replacement for factory crank pulley with no modifications required
- Compatible with stock and aftermarket belts and accessories
- Designed to maintain proper belt alignment and tension for reliable operation
- Backed by a 5-year warranty from Perrin Performance against defects in material and workmanship
Construction & Design
The Perrin Lightweight Crank Pulley is crafted from premium CNC-machined aluminum, ensuring a perfect balance of strength and weight reduction. The precision machining process guarantees exact fitment and concentricity, which is critical for maintaining engine balance and accessory drive reliability. The anodized blue finish not only enhances corrosion resistance but also adds a sleek, performance-oriented aesthetic under the hood.
This pulley is engineered to reduce the mass of the rotating assembly, which decreases parasitic drag on the engine. By lowering the inertia of the crank pulley, the engine can rev more freely and respond quicker to throttle inputs, resulting in improved acceleration and overall drivability.
Performance & Sound
By reducing the weight of the crank pulley, this upgrade allows the engine to accelerate more rapidly, improving throttle response and enhancing the driving experience. While the pulley does not directly increase peak horsepower, the reduction in rotational mass helps the engine spool faster and feel more lively throughout the powerband. Additionally, the pulley maintains the factory accessory drive system’s smooth operation, so there is no adverse effect on engine noise or accessory function.
Installation & Fitment
The Perrin Lightweight Crank Pulley is designed for a straightforward installation process with no permanent modifications required. It replaces the factory crank pulley using standard hand tools and follows the OEM torque specifications. Installation typically takes less than an hour and can be performed by experienced enthusiasts or professional mechanics. The pulley fits perfectly on the 2013–2016 Scion FR-S, 2013–2020 Subaru BRZ, and 2017–2020 Toyota 86 models, ensuring proper belt alignment and tension without the need for additional adjustments.
What's Included
- One Perrin Lightweight Crank Pulley (Blue anodized)
- Installation instructions
- Warranty information
Ideal For
This lightweight crank pulley is ideal for automotive enthusiasts and tuners who want to improve throttle response and engine efficiency on their Scion FR-S, Subaru BRZ, or Toyota 86. It is especially beneficial for those who have made or plan to make additional performance upgrades such as intake, exhaust, or forced induction systems. The pulley is also suitable for daily drivers seeking a subtle yet effective enhancement to engine responsiveness without compromising reliability.
