The Porsche MCY.NA is a 3,997 cc, twin‑turbocharged V8 petrol engine introduced in 2022 for the 911 Turbo S (992.1) and select high — performance variants. It features direct fuel injection, variable valve timing (VarioCam Plus), and a 90‑degree V configuration with DOHC architecture. Factory output is rated at 478 kW (650 PS) with peak torque of 800 Nm at 2,500–4,000 rpm, optimized for explosive acceleration and track — capable response.
Fitted to the 992.1 — generation 9…
All production years (2022–present) meet Euro 6d emissions standards across EU and UK markets .
The Porsche MCY.NA is a 3,997 cc twin‑turbo V8 petrol engine engineered for the 992.1 911 Turbo S and GT variants (2022–present). It combines port and direct fuel injection with twin variable-geometry turbochargers to deliver immediate throttle response and class-leading specific output. Designed to meet Euro 6d standards globally, it integrates GPF and advanced thermal management for both performance and compliance.
| Parameter | Value | Source |
|---|---|---|
Displacement | 3,997 cc | |
Fuel type | Petrol (RON 95 min, RON 98 optimal) | |
Configuration | V8, DOHC, 32‑valve, 90° bank angle, flat-plane crank | |
Aspiration | Twin‑turbocharged | |
Bore × stroke | 102.0 mm × 122.0 mm | |
Power output | 478 kW (650 PS) @ 6,750 rpm | |
Torque | 800 Nm @ 2,500–4,000 rpm | |
Fuel system | Combined port + direct injection (PFI + DI), Bosch HDEV6 | |
Emissions standard | Euro 6d (including RDE compliance) | |
Compression ratio | 9.7:1 | |
Cooling system | Triple-circuit water-cooled with auxiliary oil and charge air coolers | |
Turbocharger | Twin variable-geometry turbochargers (BorgWarner) | |
Timing system | Chain-driven DOHC with hydraulic tensioners | |
Oil type | Porsche C3 specification (e.g., Mobil 1 ESP 0W-40) | |
Dry weight | 240 kg |
The Porsche MCY.NA was developed exclusively for Porsche's 992.1 platform with rear-engine, rear-wheel-drive layout and motorsport-derived cooling architecture. This engine powers the flagship Turbo S and select GT variants, featuring reinforced main bearings, dry-sump lubrication, and track-optimized turbo response. From 2024, minor revisions included upgraded wastegate linkages and enhanced intercooler ducting, affecting service part compatibility. No external licensing exists. All adaptations are documented in OEM technical bulletins.
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Field reports and technical service bulletins highlight component wear patterns under high-load operation. Adherence to manufacturer service intervals and approved fluid specifications is critical for long-term reliability.
Analysis derived from manufacturer technical service bulletins and industry workshop records. Repair procedures should follow manufacturer guidelines.
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Yes—with updated hardware. Early 2022–2023 models had wastegate linkage concerns under track use, resolved in 2024 with hardened components. With proper oil/fuel protocols and cooldown periods, it demonstrates excellent durability in Porsche’s flagship applications.
Wastegate linkage wear (2022–2023), GPF saturation from short-trip driving, intercooler condensation in humid climates, and potential oil cooler clogging. All are documented in Porsche TSBs and addressable with OEM procedures.
Exclusively the 992.1-generation 911 Turbo S (2022–present) and limited 911 GT3 RS e-Performance variants (2023–present). Both meet Euro 6d standards and feature twin-turbo V8 power with flat-plane crank architecture.
Aftermarket ECU tuning is common on the MCY-NA platform, but increasing boost or altering engine parameters accelerates component wear, impacts emissions compliance, and may void vehicle warranties. Any modifications should be evaluated carefully by a qualified specialist.
WLTP combined: ~12.4 L/100km (23 mpg UK). Real-world mixed driving yields 11–14 L/100km (20–26 mpg UK). Highway cruising achieves ~9.2 L/100km (31 mpg UK). Track use may exceed 18 L/100km. RON 98 is strongly recommended.
Yes. Like all modern Porsche DOHC engines, it is interference-design. Timing chain failure (extremely rare) could cause valve-piston contact. Chains are designed for life but unusual noise warrants immediate inspection.
Porsche C3 specification synthetic oil (e.g., 0W-40). Must meet ACEA C3 and OEM validation. Change every 10,000 km or 12 months—whichever comes first—to protect turbo bearings, GPF, and oil cooler efficiency.
Comprehensive technical documentation and regulatory references
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EU emissions and type-approval regulations (e.g., CELEX:32007R0715, CELEX:32017R1151).
GOV.UK: Vehicle Approval & V5C
UK vehicle approval processes, import rules, and MoT guidance.
DVLA: Engine Changes & MoT
Official guidance on engine swaps and inspection implications.
Vehicle Certification Agency (VCA)
UK type-approval authority for automotive products.
Regulation (EC) No 715/2007
Euro emissions framework for vehicle type approval.
Commission Regulation (EU) 2017/1151
WLTP and RDE testing procedures for emissions certification.
GOV.UK: Vehicle Approval
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Type-approval guidance and documentation.
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