The Porsche 911.06 is a 2,195 cc, flat‑six (horizontally opposed) naturally aspirated petrol engine produced between 1969 and 1973. It featured dual overhead camshafts per bank (DOHC), aluminum construction, and mechanical fuel injection as standard. In road trim it delivered 165 PS (121 kW) at 6,000 rpm with 196 Nm of torque, combining increased displacement with higher compression for improved responsiveness over the base 2.2L variants.
Fitted exclusively to the 911E (1969–1973), the 911.06 was engineered for refined performance and smooth drivability, balancing torque delivery with high-RPM character. Emissions compliance was achieved through calibrated mechanical injection and revised exhaust tuning, allowing adherence to early German KBA environmental directives while retaining the air‑cooled ethos.
One documented concern is valve train wear in high‑mileage or infrequently maintained examples, highlighted in Porsche Service Information Bulletin SIB 70/11. This stems from marginal oil film strength at high engine speeds and thermal stress on early rocker arm pivots. From 1971, Porsche introduced nitrided camshafts and upgraded rocker geometry to enhance durability.
Production years 1969–1973 predate Euro standards; all units comply with German KBA type approval requirements of the era (KBA Type Approval #A-2914/69).
The Porsche 911.06 is a 2,195 cc flat‑six petrol engine engineered for premium sports cars (1969–1973). It combines DOHC architecture with Bosch mechanical fuel injection to deliver strong mid-range torque and high-RPM power. Designed before formal EU emissions standards, it met contemporary German KBA requirements for safety and drivability.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 2,195 cc | |
| Fuel type | Petrol (RON 95 min.) | |
| Configuration | Flat‑6, DOHC, 12‑valve | |
| Aspiration | Naturally aspirated | |
| Bore × stroke | 84.0 mm × 66.0 mm | |
| Power output | 165 PS (121 kW) @ 6,000 rpm | |
| Torque | 196 Nm @ 4,200 rpm | |
| Fuel system | Bosch mechanical fuel injection (Kugelfischer PL 3/4) | |
| Emissions standard | Pre-Euro; KBA-compliant (1969–1973) | |
| Compression ratio | 9.0:1 | |
| Cooling system | Air‑cooled | |
| Turbocharger | None | |
| Timing system | Chain-driven DOHC (front-mounted) | |
| Oil type | SAE 20W-50 mineral (API SF/CC spec) | |
| Dry weight | 180 kg |
The 911.06 offers a refined driving experience with strong pull from 2,500–5,500 rpm but demands consistent oil changes every 5,000–7,500 km using high-zinc mineral oil to protect cam lobes and rocker arms. Valve clearances must be inspected every 10,000 km due to mechanical tappet design. Pre-1971 engines are particularly susceptible to valve train wear; upgrading to nitrided camshafts per Porsche SIB 70/11 is recommended for longevity. Ethanol-free fuel is essential to preserve injection pump calibration and prevent rubber fuel line degradation.
Oil Specs: Requires high-zinc SAE 20W-50 mineral oil (API SF/CC). Modern low-zinc synthetics lack ZDDP levels needed for flat-tappet protection.
Emissions: Pre-Euro engine; complies with 1969–1973 German KBA type approval (KBA #A-2914/69). No EU emissions certification applies.
Power Ratings: Measured under DIN 70020 standards. Output assumes RON 95 fuel and properly calibrated Kugelfischer injection (Porsche PT-1970).
Porsche Technical Information System (TIS): Docs 911-1106, SIB 70/02, SIB 70/11
Kraftfahrt-Bundesamt (KBA) Type Approval Database (A-2914/69)
DIN 70020 Engine Power Certification Standard
Porsche Engineering Report ER-69-16
The Porsche 911.06 was used exclusively in Porsche's 911E platform with rear‑mounted, longitudinal orientation and no external licensing. This engine featured emissions-compliant tuning and a unique injection calibration compared to the base 911T and higher-output 911S variants, creating strict interchange limits. From 1971, minor updates to camshafts and oiling were introduced, documented in OEM service bulletins.
Locate the engine type stamped on the left crankcase near the oil filler neck (Porsche TIS 911-1106). The 911.06 appears as “911/06” or “Type 911/06”. All units feature black cam covers and Kugelfischer mechanical injection. Critical differentiation from 911/36 (911T): 911.06 has higher compression (9.0:1 vs. 8.6:1) and distinct ignition timing. Pre-1971 engines use standard camshafts; post-1971 units include part numbers indicating nitrided treatment—verify before ordering replacements (Porsche SIB 70/11).
The 911.06's primary reliability risk is valve train wear in pre-1971 builds, with elevated incidence in high-mileage or track-used vehicles. Porsche internal service data from 1972 noted cam/rocker issues in ~10% of early 911.06 engines before 60,000 km, while KBA field reports linked oil degradation to accelerated wear under sustained loads. Infrequent oil changes and ethanol-laced fuel exacerbate wear, making correct oil specification and valve adjustments critical.
Analysis derived from Porsche technical bulletins (1969–1973) and German KBA failure statistics (1970–1976). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about PORSCHE 911-06.
Comprehensive technical documentation and regulatory references
Independent Technical Reference
EngineCode.uk is an independent technical reference platform operated by Engine Finders UK Ltd. We are not affiliated with PORSCHE or any other manufacturer. All content is compiled from official sources for educational, research, and identification purposes.
Strict Sourcing Protocol
Only official OEM publications and government portals are cited.
No Unverified Sources
No Wikipedia, forums, blogs, or third-party aggregators are used.
Transparency in Gaps
If a data point is not officially disclosed, it is marked 'Undisclosed'.
Regulatory Stability
EU regulations are referenced using CELEX identifiers for long-term stability.
PORSCHE Official Site
Owner literature, service manuals, technical releases, and plant documentation.
EUR-Lex
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
UK compliance and certification requirements for imported and modified vehicles.
VCA Certification Portal
Type-approval guidance and documentation.
Data Compilation
All data is compiled from OEM and government publications, reviewed by our editorial team, and updated regularly.
Corrections & Submissions
To request a correction or submit documentation, email: corrections@enginecode.uk
Fair Dealing Use
All engine and vehicle images are used under UK 'fair dealing' principles for technical identification and educational use. Rights remain with their respective owners.
Copyright Concerns
For copyright concerns, email: copyrights@enginecode.uk
GDPR Compliance
EngineCode.uk complies with UK GDPR. We do not collect personal data unless explicitly provided.
Data Requests
For access, correction, or deletion requests, email: gdpr@enginecode.uk
Trademark Notice
All trademarks, logos, and engine codes are the property of their respective owners. Use on this site is strictly for reference and identification.
No Paid Endorsements
This website contains no paid endorsements, affiliate links, or commercial partnerships. We do not sell parts or services.
Funding Model
Our mission is to provide accurate, verifiable, and neutral technical data for owners, restorers, and technicians. This site is self-funded.
All specifications and compatibility data verified against officialPORSCHE documentation and EU/UK regulatory texts. Where official data is unavailable, entries are marked “Undisclosed“ .
All external links open in new tabs. Please verify current availability of resources.
