The Porsche MCV.VB is a 4,942 cc, naturally aspirated V8 petrol engine introduced in 2023 for the 911 GT3 RS and limited-edition 911 models. It features direct fuel injection, variable valve timing (VarioCam Plus), and a flat-plane crankshaft with 90‑degree V configuration and DOHC architecture. Factory output is rated at 419 kW (570 PS) with peak torque of 570 Nm at 6,300 rpm, optimized for high-revving track performance and linear power delivery.
Fitted exclusively to the 992-generation 911 GT3 RS (992.1) and select motorsport-inspired variants, the MCV.VB prioritizes mechanical responsiveness, high specific output (115 PS/L), and driver engagement. Emissions compliance is achieved through direct injection, precise ignition control, and a high-efficiency catalyst system, meeting Euro 6d standards.
One documented engineering note is elevated thermal stress on exhaust manifolds during sustained track use, highlighted in Porsche Technical Service Bulletin TSB-2023-11. This is addressed via titanium exhaust components and revised cooling ducting in post-2024 models, reducing heat soak in the engine bay and improving long-term durability under competition conditions.
All production years (2023–present) meet Euro 6d emissions standards across EU and UK markets (VCA UK Type Approval #VCA/EMS/7532).
The Porsche MCV.VB is a 4,942 cc naturally aspirated V8 petrol engine engineered for high-performance 911 variants (2023–present). It combines port-deleted direct injection with a flat-plane crank and dry-sump lubrication to deliver extreme high-rpm responsiveness. Designed to meet Euro 6d standards without turbocharging, it represents Porsche’s pinnacle of NA track-focused powertrain engineering.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 4,942 cc | |
| Fuel type | Petrol (RON 98 required) | |
| Configuration | V8, DOHC, 32‑valve, 90° bank angle, flat-plane crank | |
| Aspiration | Naturally aspirated | |
| Bore × stroke | 102.0 mm × 75.6 mm | |
| Power output | 419 kW (570 PS) @ 8,500 rpm | |
| Torque | 570 Nm @ 6,300 rpm | |
| Fuel system | Direct injection only (Bosch HDEV6), no port injectors | |
| Emissions standard | Euro 6d (including RDE compliance) | |
| Compression ratio | 13.0:1 | |
| Cooling system | Dual-circuit water-cooled with auxiliary oil cooler and dry-sump lubrication | |
| Turbocharger | None | |
| Timing system | Chain-driven DOHC with hydraulic tensioners | |
| Oil type | Porsche C3 specification (e.g., Mobil 1 ESP 0W-40) | |
| Dry weight | 225 kg |
The naturally aspirated V8 delivers exceptional throttle linearity and 9,000 rpm redline, ideal for track use but demanding in daily driving. Strict adherence to 10,000 km or 12-month oil changes with C3-spec oil is critical for dry-sump system reliability. RON 98 fuel is mandatory to prevent knock at high load. Sustained high-rpm operation requires cooldown periods to avoid exhaust manifold distortion. Titanium exhaust systems (standard post-2024) reduce weight but require careful handling during service. Carbon buildup on intake valves is minimal due to lack of EGR, but fuel system cleanliness remains vital for injector performance.
Oil Specs: Requires Porsche C3 specification oil (e.g., ACEA C3 with OEM validation) as defined in Technical Bulletin TSB-1938-05.
Emissions: Euro 6d certification includes real-driving emissions (RDE) compliance across all MY2023–present models (VCA Type Approval #VCA/EMS/7532).
Power Ratings: Measured per ISO 1585. Full 570 PS output requires RON 98 fuel (Porsche TIS MCV-VB-009).
Porsche Technical Information System (TIS): Docs MCV-VB-001 through MCV-VB-009
Porsche Service Information Bulletin (SIB) 31 02 24
VCA Type Approval Database (VCA/EMS/7532)
EU Regulation (EU) 2017/1151 (WLTP and RDE)
The Porsche MCV.VB was developed exclusively for Porsche's 992 platform with rear-engine mounting and motorsport-derived architecture. This engine is reserved for high-performance variants and features track-tuned dry-sump lubrication, lightweight internals, and titanium exhaust. From 2024, minor revisions included upgraded exhaust manifolds and revised oil cooler routing, creating service part distinctions. No licensing partnerships exist. All adaptations are documented in OEM technical bulletins.
Engine code 'MCV.VB' is laser-etched on the rear face of the crankcase near the oil pump (Porsche TIS MCV-ID-01). The 7th VIN digit is 'V' for this engine family. Visual identification: carbon-fiber intake plenum, titanium exhaust manifolds (silver-gray with heat wrap), and absence of turbochargers or intercoolers. Differentiate from M97/74 (3.6L NA flat-six) by V8 configuration and dual exhaust banks. Engine serial number begins with 'MCVVB' followed by production digits; post-2024 units include suffix '-R2' indicating revised exhaust hardware per SIB 31 02 24.
The MCV.VB's primary reliability concern is thermal fatigue in exhaust manifolds during extended high-load track sessions, with elevated incidence in 2023-model-year vehicles. Porsche internal data (2024) indicates ~5% of early GT3 RS units required manifold inspection before 15,000 km under track use, while UK DVSA records show no emissions failures due to robust catalyst design. Aggressive driving without cooldown periods accelerates material stress, making post-drive cooling protocols and upgraded hardware critical for durability.
Analysis derived from Porsche technical bulletins (2023–2025) and UK DVSA failure statistics (2023–2025). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about PORSCHE MCV-VB.
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Regulation (EC) No 715/2007
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Commission Regulation (EU) 2017/1151
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