🔧 Product Description
The GFB Lightweight Crank Pulley (Part No. 2220) is a precision-engineered performance upgrade designed specifically for the Subaru BRZ / Toyota 86 / Scion FR-S (FA20 platform). Built from aircraft-grade materials, this pulley reduces rotational mass on the crankshaft to improve engine response, acceleration, and overall drivability.
Unlike standard OEM pulleys, the GFB lightweight design is focused on reducing inertia without compromising reliability or accessory performance.
⚙️ Key Features
- Direct-fit for Subaru BRZ / Toyota 86 / Scion FR-S (FA20)
- CNC-machined from aircraft-grade 6061-T6 aluminium
- Significantly reduced rotational mass vs OEM pulley
- Optimised (non-intrusive) accessory drive characteristics
- Lightweight design for improved engine response
- Application-tested for reliability and durability
- Direct bolt-on replacement – no modifications required
🏁 Performance Benefits
⚡ Faster Engine Response
Reducing crankshaft rotational mass allows the engine to rev more freely, improving throttle response and acceleration feel.
🚀 Improved Acceleration
With less inertia to overcome, the engine delivers a more immediate and responsive power delivery.
🎯 Sharper Driving Feel
The engine feels more “alive,” with quicker rev-happy characteristics similar to a lightweight flywheel effect.
🔒 Reliable Performance Gains
Designed and tested to ensure no adverse effects on accessory operation or long-term engine durability.
🔬 How It Works
The crank pulley reduces rotational inertia on the engine’s accessory drive system.
- Less mass on the crankshaft = faster rev changes
- Reduced parasitic load improves efficiency
- Engine responds more quickly to throttle input
👉 Result: improved responsiveness without mechanical compromise.
🚗 Vehicle Applications
- Subaru BRZ (FA20)
- Toyota 86 (FA20)
- Scion FR-S (FA20)
🔩 Specifications
- Product Type: Lightweight crank pulley
- Material: CNC-machined 6061-T6 aluminium
- Fitment: Direct bolt-on
- Platform: FA20 boxer engine
- Brand: Go Fast Bits (GFB)
🛠️ Installation Notes
- Direct OEM replacement
- Retains factory belt setup
- No tuning required
- Simple bolt-on installation
- Suitable for street and performance builds
💡 Why Choose the GFB Pulley?
If you want:
- Sharper throttle response
- Faster-revving engine feel
- Simple bolt-on performance upgrade
- OEM reliability with improved dynamics
👉 This is one of the easiest and most effective FA20 response upgrades available.
🏆 Perfect For
- BRZ / 86 / FR-S street builds
- NA performance setups
- Lightweight response-focused tuning
- Drivers wanting sharper engine feel without adding power mods
✅ Summary
The GFB 2220 Lightweight Crank Pulley delivers improved throttle response and acceleration feel for the Subaru BRZ, Toyota 86, and Scion FR-S by reducing crankshaft inertia, offering a simple, reliable, bolt-on performance enhancement for FA20 engines.
Reviews
There are no reviews yet.