Porsche 911 Turbo (930) - Key Specifications
| Specification | Details |
|---|---|
| Type | High-Performance Sports Car |
| Released At | 1975 Model Year |
| Built At | Stuttgart, Germany |
| Engine | 3.0L / 3.3L Turbocharged Flat-6 |
| Position | Rear-Engine, Longitudinal |
| Aspiration | Single Turbocharged |
| Block Material | Aluminum Alloy |
| Valvetrain | SOHC, 2 Valves per Cylinder |
| Fuel Feed | Bosch K-Jetronic Fuel Injection |
| Displacement | 2994 cc / 3299 cc |
| Bore | 95 mm / 97 mm |
| Stroke | 70.4 mm / 74.4 mm |
| Compression | 6.5:1 - 7.0:1 |
| Power | 260 - 300 hp @ 5500-6000 rpm |
| Specific Output | 80 - 90 hp per liter |
| BHP/Weight | 160 - 190 bhp per tonne |
| Torque | 343 - 430 Nm @ 4000 rpm |
| Top Speed | 250 km/h / 155 mph |
| 0 – 60 mph | 4.9 - 5.3 seconds |
| 0 – 100 km/h | 5.2 - 5.5 seconds |
| Body / Frame | Steel Monocoque |
| Driven Wheels | RWD (Rear-Wheel Drive) |
| Wheel Type | Fuchs Alloy Wheels |
| Front Tires | 205/50R16 |
| Rear Tires | 225/50R16 |
| Front Brakes | Ventilated Disc Brakes |
| Rear Brakes | Ventilated Disc Brakes |
| Front Wheels | 16 x 7 in |
| Rear Wheels | 16 x 9 in |
| Front Suspension | Independent, MacPherson Strut with Torsion Bars |
| Rear Suspension | Independent, Trailing Arm with Torsion Bars |
| Curb Weight | 1270 - 1340 kg / 2800 - 2950 lbs |
| Weight Distribution | 39 % Front / 61 % Rear |
| Wheelbase | 2272 mm / 89.5 in |
| Length | 4290 mm / 168.9 in |
| Width | 1775 mm / 69.9 in |
| Height | 1310 mm / 51.6 in |
| Transmission | 4-Speed Manual (Early Models) / 5-Speed Manual (Later Models) |
| Fuel Economy (Combined) | 13.0 - 16.0 L/100 km or 15-18 mpg-US |
| Fuel Capacity | 89 liters / 23.5 gallons |

Porsche’s First Turbocharged Production Car The Porsche 911 Turbo (930), introduced in 1975, was Porsche’s first production car with a turbocharged engine, paving the way for future high-performance 911 models.
Powered by a Legendary Flat-Six Turbo Engine The early 930 models came with a 3.0-liter turbocharged flat-six, producing 260 hp, while later models (1978-1989) were upgraded to a 3.3-liter engine with 300 hp.
Nicknamed the "Widowmaker" The 930 gained a reputation as the "Widowmaker" due to its turbo lag, rear-engine layout, and sudden bursts of power, making it challenging to handle, especially at high speeds.
Inspired by Porsche’s Racing Technology Porsche developed the 930’s turbocharging technology from its 917/30 Can-Am race car, which had dominated racing with its extreme turbo power.
Massive Whale Tail Spoiler The 911 Turbo’s iconic "Whale Tail" rear spoiler wasn’t just for looks—it helped increase downforce and provide extra cooling to the engine.
One of the Fastest Cars of Its Era The 3.3L version (1978+) could accelerate from 0-60 mph in just 4.9 seconds and had a top speed of over 160 mph (257 km/h), making it one of the fastest production cars of the late 1970s and 1980s.
Limited Production Numbers From 1975 to 1989, Porsche built 21,589 units of the 930, making it a rare and highly sought-after classic today.
Started with a Four-Speed Transmission Despite its high performance, the 930 only had a four-speed manual transmission because Porsche engineers believed a five-speed couldn't handle the torque. A five-speed gearbox was introduced in 1989, the final year of production.
Available in Coupe, Cabriolet, and Targa Versions While the hardtop coupe was the most common, Porsche also introduced Cabriolet (convertible) and Targa (removable roof panel) versions in the mid-1980s.
Highly Collectible and Expensive Today Due to its racing heritage, raw driving experience, and limited production, the Porsche 911 Turbo (930) has skyrocketed in value, with well-preserved models selling for over $200,000 at auctions.

The 930 Turbo is the original "Widowmaker"—a 3.0L–3.3L turbocharged flat-six (260–330hp) with snap-oversteer charm and whale-tail drama. A 1970s–80s icon that now commands supercar money.
1. Price Ranges (EUR, Mid-2024)
Standard 930 Turbo (Non-Flachbau, Non-SE)
Project Car (Non-Runner/Rusty): €80,000 – €120,000(Check for cancerous rust in floor pans, smuggler’s box, or torsion tube.)
Drivable but Worn (150,000+ km): €130,000 – €190,000(Expect turbo lag, worn synchros, and faded Fuchs wheels.)
Restored (Matching Numbers): €220,000 – €350,000(Fresh Grand Prix White paint, rebuilt KKK turbo, no rust.)
Concours-Grade (<50,000 km): €400,000 – €600,000+(Never modified, all books/tools, factory-delivery condition.)
Special Versions
930 Turbo SE (1989 "Slantnose"): €600,000 – €900,000(Factory Flachbau—verify M505/506 option codes.)
930 Turbo LE (1986 "50th Anniversary"): €500,000 – €700,000(Diamond Blue Metallic—only 200 made.)
2. Key Factors Affecting Value
✅ Provenance is Everything
One-Owner Cars: +20% premium (rare for 930s).
Porsche Classic Certificate: +€15k (must-have for top sales).
✅ Desirable Original Features
Factory "Sonderwunsch" Paint: +€50k (like Viper Green).
Uncracked Dash: +€10k (most are sun-damaged).
Original Blaupunkt Radio: +€5k (often missing).
⚠️ Critical Watch-Outs
Turbocharger Failure: KKK units cost €15k+ to rebuild.
915 Gearbox Pop-Out: Weak 2nd-gear synchros? €25k rebuild.
Non-Matching Engine: –30% value if not original M930/xx.
3. Where to Buy in the EU?
Official Channels
Porsche Classic Partner (Germany) for certified cars.
Canford Classics (UK) for concours-ready examples.
Private Sales
Elferclassic.de (Germany): Best for original barn finds.
PCA Mart (USA): Some EU-legal imports surface here.
Pro Tip: Swiss-spec 930s often have no rust but higher prices.
4. Market Trends
📈 Air-Cooled Mania
+12% annually since 2015 (now 3x 2010 prices).
Slantnose Models rising fastest (+20% in 2023).
⚠️ Trap Warning
"Matching Numbers" Scams: Fake VIN stamps—3D-scan engine case.
US Imports: Catalytic converters sap power (€20k to remove legally).
5. Must-Do Checks
🔧 Mechanical
Compression Test: Below 120psi? €40k engine rebuild looms.
Wastegate Function: Stuck closed? Instant overboost danger.
📄 Paperwork
Kardex Document: Proves original color/options (via Porsche AG).
Service Stamps: Must show annual turbo oil-line changes.
Fun Fact:
The 930’s turbo lag was so brutal, Porsche added a "Warning: Turbo Boost!" sticker to prevent lawsuits!
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