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Description
About the Subaru BRZ Engine
Inside the hood of the Subaru BRZ is a flat-four powerplant with a soul that delivers the performance of a pure, unadulterated sports car experience. The boxer configuration, a Subaru hallmark, ensures the car has a low center of gravity. There’s also the boxer engine rumble which is no less than a song for automotive enthusiasts.
Push that accelerator and the engine will reward you with linear power. Given its low position in the chassis, this BRZ engine for sale here gives the BRZ its renowned handling characteristics.
The engine is more than just a powerplant. It’s the soul of a true driver’s car, offering a connection between human and machine that’s becoming increasingly rare in the modern automotive world. The Subaru BRZ engine for sale is an invitation to rediscover the joy of driving.
Engine Overview: Subaru BRZ (Lead Stock: FA24)
The Subaru BRZ has used one of these engines under its hood across two generations:
- FA20D (1st gen BRZ 2013-2020, 2.0L NA, 200-205 HP, infamous torque dip)
- FA24 (2nd gen BRZ 2022+, 2.4L NA, 228 HP, addressed torque dip)
The FA24 is the available lead stock for this Subaru BRZ engine for sale.
The FA24 is part of Subaru’s newer generation of FA-series boxer engines, providing more displacement and power for the BRZ platform. A high 12.5:1 compression ratio and a strengthened valvetrain finally give this version a fix for the torque dip that defined its predecessor. Lightweight and low center of gravity, it also helps make the BRZ so agile in handling.
Fitted with Toyota’s D-4S dual-injection system, the BRZ engine for sale here provides a broader torque curve for more responsive acceleration.
This engine strikes an excellent balance between everyday driveability and sports car performance, offering a more mature, polished experience without giving up the fun-to-drive factor for which the BRZ is famous.
The Toyota-Subaru BRZ/86 Partnership
A unique aspect of the BRZ engine story: the BRZ is a Subaru-Toyota joint venture, with the same engine powering vehicles from both brands:
| Vehicle | Years | Brand | Engine |
|---|---|---|---|
| Subaru BRZ (1st gen) | 2013-2020 | Subaru | FA20D |
| Scion FR-S | 2013-2016 | Toyota (Scion) | FA20D |
| Toyota 86 | 2017-2020 | Toyota | FA20D |
| Subaru BRZ (2nd gen) | 2022-Present | Subaru | FA24 |
| Toyota GR86 | 2022-Present | Toyota | FA24 |
- Engineering split:
- Subaru: Manufactures the boxer block and cylinder heads, contributes the flat-4 architecture and boxer engineering expertise
- Toyota: Designed the D-4S dual injection fuel system, contributes performance tuning and the GR (Gazoo Racing) performance heritage
- Why this matters for replacement: BRZ engines are essentially identical to Scion FR-S / Toyota 86 / GR86 engines of the same generation. Cross-compatibility allows for broader donor vehicle pool when sourcing replacement engines.
FA24 (2022+ BRZ, Available Lead Stock) , Detailed Specs
The newer-generation engine, addressing the FA20D’s torque dip:
| Detail | Description |
|---|---|
| Specification | Value |
| Displacement | 2.4L (2,387 cc) |
| Bore x Stroke | 94.0 mm x 86.0 mm (larger bore vs FA20D’s 86 mm) |
| HP | 228 HP at 7,000 RPM |
| Torque | 184 lb-ft at 3,700 RPM (vs FA20D’s 156 lb-ft) |
| Compression | 12.5:1 |
| Valvetrain | DOHC, AVCS, 4 valves per cylinder |
| Fuel System | Toyota D-4S dual injection (port + direct) |
| Production | 2022-present |
| Applications | Subaru BRZ (2nd gen), Toyota GR86 |
| Improvement | Fixes torque dip of FA20D |
The FA24 represents a focused engineering effort to address customer complaints about the FA20D’s torque dip. By increasing displacement (from 2.0L to 2.4L), the engine produces meaningfully more torque (184 vs 156 lb-ft) and provides a flatter, more linear torque curve.
FA20D (2013-2020 BRZ) , Detailed Specs
The original BRZ engine, with the famous torque dip:
| Detail | Description |
|---|---|
| Specification | Value |
| Displacement | 2.0L (1,998 cc) |
| Bore x Stroke | 86.0 mm x 86.0 mm (perfectly square) |
| HP | 200-205 HP at 7,000 RPM (varies by year) |
| Torque | 151-156 lb-ft at 6,400-6,600 RPM (peak at high RPM) |
| Compression | 12.5:1 |
| Valvetrain | DOHC, AVCS, 4 valves per cylinder |
| Fuel System | Toyota D-4S dual injection (port + direct) |
| Production | 2013-2020 |
| Applications | Subaru BRZ (1st gen), Scion FR-S, Toyota 86 |
| Famous Characteristic | “Torque dip” at 3,500-4,500 RPM |
The FA20D’s torque dip is a famous BRZ characteristic , the engine produces relatively high torque at low RPM (~6,500 RPM dyno peak), but there’s a noticeable dip between approximately 3,500-4,500 RPM where torque drops. This was a design characteristic, not a defect, but frustrated owners during normal driving in that RPM range.
FA20D vs FA24 Comparison
| Feature | FA20D (1st gen BRZ) | FA24 (2nd gen BRZ, Lead Stock) |
|---|---|---|
| Displacement | 2.0L | 2.4L (20% larger) |
| HP | 200-205 HP | 228 HP |
| Torque | 151-156 lb-ft | 184 lb-ft (18% more) |
| Torque Curve | “Torque dip” 3,500-4,500 RPM | Flat, no torque dip |
| Bore x Stroke | 86 x 86 mm | 94 x 86 mm (larger bore) |
| Compression | 12.5:1 | 12.5:1 (same) |
| Fuel System | Toyota D-4S | Toyota D-4S (same) |
| Years | 2013-2020 | 2022-present |
| Drivetrain | RWD | RWD |
| Used Price | $3,000-5,500 | $4,000-7,000 |
Toyota D-4S Dual Injection System (Critical Distinction)
A hallmark of both BRZ engines is the Toyota D-4S system:
What D-4S Does
- Port injection (PFI): Fuel sprayed into intake port (traditional injection method)
- Direct injection (DI): Fuel sprayed directly into combustion chamber (high-pressure)
- Both systems work together: The ECU manages which injection system (or combination) is active based on engine conditions
Why Dual Injection Matters
- Low RPM: Port injection provides smooth idle and good emissions
- High RPM / High Load: Direct injection provides cooling effect and high-pressure atomization for power
- Intake valve cleaning: Port injection fuel washes intake valves, preventing carbon buildup (the major issue with direct-injection-only engines like FA20DIT)
- Result: Best of both worlds , the high-compression power of direct injection with the cleanliness of port injection
Distinction From FA20DIT
The FA20D and FA24 (BRZ engines) use D-4S dual injection.
The FA20DIT (WRX turbo engine) uses direct injection only.
This means BRZ engines don’t suffer the intake valve carbon buildup that affects FA20DIT engines.
Vehicle Applications (Direct Fit)
| Vehicle | Years | Engine | Notes |
|---|---|---|---|
| Subaru BRZ (1st gen) | 2013-2020 | FA20D | Original BRZ |
| Subaru BRZ (2nd gen) | 2022-present | FA24 | Current BRZ (lead stock) |
| Scion FR-S | 2013-2016 | FA20D | Toyota Scion brand BRZ twin |
| Toyota 86 | 2017-2020 | FA20D | Rebranded after Scion discontinuation |
| Toyota GR86 | 2022-present | FA24 | Toyota’s 2nd gen partnership car |
Key Engineering Features
- Flat-4 Horizontally Opposed Boxer: Subaru signature architecture, ultra-low center of gravity for sports car handling
- Naturally Aspirated: No turbocharger , emphasizes throttle response and weight distribution
- High 12.5:1 Compression: Unusually high for production engines, enabled by D-4S dual injection
- Toyota D-4S Dual Injection: Port + direct injection combination
- DOHC with AVCS: Variable valve timing on both intake and exhaust
- Forged Connecting Rods: FA-series specification
- Rear-Wheel Drive: Unlike most Subarus (which are AWD), the BRZ/86 is RWD for sports car character
- High Redline: 7,400-7,500 RPM (impressive for production NA engine)
Common BRZ Engine Service Items (Honest Disclosure)
FA20D Specific Items
Oil Consumption
- Some FA20D examples (especially 2013-2014 production) develop oil consumption:
- Symptoms: Oil level dropping between changes
- Subaru/Toyota response: Some affected engines covered under TSB and extended warranty
- Service: Piston ring replacement if severe
Fuel Pump Issues (Toyota Recall)
Toyota recalled some FA20D-equipped vehicles for fuel pump failures , verify vehicle history for any recall completion.
Torque Dip (Design Feature, Not Defect)
The 3,500-4,500 RPM torque dip is intentional design, not a failure. FA24 addresses this.
FA24 Specific Items
The FA24 is relatively new (2022+) with limited long-term service item documentation. Early indications suggest good reliability, but it’s too early for definitive long-term data.
Shared Items (Both Engines)
Spark Plug Service
30,000-60,000 mile interval recommended.
AVCS Solenoid Failures
At high mileage, AVCS solenoids can develop failures.
D-4S Fuel System Maintenance
Port injection components require less maintenance than typical direct-injection engines
High-pressure fuel pump (for direct injection side) is a wear item at very high mileage
Why Choose a Used Subaru BRZ Engine?
- Cost savings vs reman ($4,399 used vs $5,500-8,500 reman plus core)
- Direct OEM fit for BRZ (both generations) and shared Toyota applications (FR-S, 86, GR86)
- D-4S system tested (port and direct injection both verified)
- Cross-compatibility: BRZ / FR-S / 86 / GR86 engines are essentially identical within each generation
- Strong aftermarket , extensive performance parts catalog (turbocharger conversion kits, supercharger kits, etc.)
- Tuning potential , 250-300 HP achievable on stock NA with limited mods, 400+ HP with forced induction
- Toyota-Subaru partnership quality , dual-brand engineering oversight
Here at Vaz Auto Solutions, you’ll find this Subaru BRZ engine for sale at the most reasonable price possible, with variant verified (FA24 lead stock or FA20D alternative), donor vehicle confirmed, all 4 cylinders compression tested, AVCS function tested, Toyota D-4S dual injection system tested (both port and direct injectors), forged rods verified, and complete inspection.
Vehicle Compatibility
Direct Fit:
| Vehicle | Compatibility |
|---|---|
| Subaru BRZ (2nd gen, FA24) | 2022 to Present (lead stock match) |
| Toyota GR86 (2nd gen, FA24) | 2022 to Present (shared engine) |
| Subaru BRZ (1st gen, FA20D) | 2013-2020 (FA20D alternative variant) |
| Scion FR-S (FA20D) | 2013-2016 (shared engine, Scion brand discontinued 2016) |
| Toyota 86 (FA20D) | 2017-2020 (shared engine, rebranded from Scion FR-S) |
Condition and Inspection
- Engine variant verified (FA24 lead stock or FA20D alternative)
- Donor vehicle confirmed (BRZ generation, or shared Scion FR-S / Toyota 86 / GR86)
- All 4 cylinders compression tested
- Oil pressure verified at idle and operating speed
- AVCS variable valve timing function verified
- Toyota D-4S dual injection system tested
- Port injection (PFI) injector function verified (4 injectors)
- Direct injection (DI) injector function verified (4 injectors)
- High-pressure fuel pump function verified (for direct injection side of D-4S)
- Forged connecting rods verified (FA-series specification)
- Head gasket condition verified
- Open-deck aluminum block condition inspected
- Cylinder head condition assessed (high compression 12.5:1)
- Spark plug condition documented (4 NGK iridium plugs)
- Coolant system function verified
- Oil consumption assessed (FA20D specific service area)
- Miles from donor vehicle documented where available
- Both BRZ engine variants covered (FA24 lead stock and FA20D alternative)
- Donor vehicle confirmed (BRZ or shared Scion FR-S / Toyota 86 / GR86)
- All 4 cylinders compression tested
- AVCS variable valve timing tested
- Toyota D-4S dual injection system tested (both port and direct injection)
- High-pressure fuel pump verified
- Forged connecting rods verified
- Oil consumption assessed (FA20D specific area)
- Cross-reference assistance across BRZ / FR-S / 86 / GR86 applications
- Toyota-Subaru partnership engine expertise
- FA24 vs FA20D variant guidance
- Naturally aspirated tuning consultation
- Turbocharger conversion consultation (popular BRZ build path)
- Free freight pallet delivery to all 50 states
- 15 day replacement warranty on internal defects
- Subaru FA-series specialist support team
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