Makes › Porsche › 911 › Original 911 › 911 Carrera RS 3.0 · Factory competition · 1974 Extremely Rare
Porsche
911 Carrera RS 3.0
Group 3/4 homologation successor to the RS 2.7 and base for the RSR 3.0/IROC cars.
Still being researched: full specifications. Everything shown is checked against the cited sources. Know more? Send us a source.
Photo: MrWalkr · CC BY-SA 4.0
Contents
01Overview
At a glance
- Built
- 55 Built
- Years
- 1974
- Engine
- 3,000 cc / 3 LFactory: 3 L
- Power
- 172 kW / 233 PSFactory: 230 hp · converted
- Top speed
- 245 km/hFactory: 152 mph · converted
- Body
- Not yet verified
- Designer
- Not yet verified
- In this archive
- Not yet verified
- Surviving
- Not yet verified
Sources and any conflicting figures are in the sections below.
Why it matters
The Carrera RS 3.0 was the road-legal homologation base for the Carrera RSR 3.0 racing car. It followed the Carrera RS 2.7 with a larger engine, wider wheels and stronger chassis and suspension parts, and it was built in far smaller numbers than the 2.7. It is regarded as one of the closest road-legal approaches to a race-bred 911.
How rare is it?
Six separate kinds of rarity – never combined into one number.
Each kind of rarity is rated separately and never combined.
Photos
Exterior, interior and detail photos with their licences.
Porsche 911 Carrera RS 3.0 (Wikimedia Commons search)
Photo: MrWalkr · CC BY-SA 4.0
Porsche 911 Carrera RS 3.0 (Wikimedia Commons search)
Photo: MrWalkr · CC BY-SA 4.0
Porsche 911 Carrera RS 3.0 (Wikimedia Commons search)
Photo: Calreyn88 · CC BY-SA 4.0
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02Production & history
Production
Every figure says what it counts.
| What is counted | Figure | Basis | Status |
|---|---|---|---|
| Total model production911 Carrera RS 3.0 chassis produced (homologation base for the RSR 3.0) | 551,2Strongest evidence | Factory production | Disputed |
Sources differ: RM Sotheby's says 55 chassis produced (RM Sotheby's); Stuttcars says 56 were built for 1974 (and elsewhere on the same page 'just 55') (Stuttcars).
Independent counts (e.g. engine and colour) are never combined into a calculated figure. Surviving examples are never presented as original production.
History
Porsche built the RS 3.0 in 1974 to homologate the RSR 3.0 for competition. Compared with the RS 2.7 it received a larger aluminium-cased 3.0-litre engine with new cylinder heads, wider Fuchs wheels, reinforced chassis and suspension parts and ventilated brake discs taken from the 917. Auction catalogues state about 230 hp in street tune.
One documented chassis (9114609106) was designated a factory demonstration car, then passed through the French importer and was exported to the United States in July 1974. A separate Group 3 car sold by Bonhams in 2008 came with a Porsche certificate stating that it had been prepared to FIA Group 3 specification and was one of 56.
Variants
How each version differs from the standard 911 Carrera RS 3.0.
No variants documented yet. Have a source? Contribute it.
03Specifications
Technical specifications
Engine
| Engine family | Not yet verified |
|---|---|
| Engine code | 911/772 Independently researched |
| Layout | Not yet verified |
| Displacement | 3,000 cc / 3 LFactory: 3 L3 Independently researched |
| Bore | 95 mmFactory: 95 mm2 Independently researched |
| Stroke | 70.4 mmFactory: 70.4 mm2 Independently researched |
| Compression ratio | Not yet verified |
| Fuel system | Bosch Kugelfischer mechanical fuel injection2 Independently researched |
| Power | 172 kW / 233 PSFactory: 230 hp · converted3 Independently researchedApproximate street-tune figure stated by the auction house. |
| Power at | Not yet verified |
| Torque | Not yet verified |
Transmission & drivetrain
| Gearbox | Not yet verified |
|---|---|
| Gears | 52 Independently researched |
| Driven wheels | Not yet verified |
Chassis, body & dimensions
| Chassis | Not yet verified |
|---|---|
| Front suspension | Not yet verified |
| Rear suspension | Not yet verified |
| Brakes | Ventilated disc brakes borrowed from the 9173 Independently researched |
| Steering | Not yet verified |
| Body construction | Not yet verified |
| Wheelbase | Not yet verified |
| Length | Not yet verified |
| Width | Not yet verified |
| Height | Not yet verified |
| Front track | Not yet verified |
| Rear track | Not yet verified |
| Kerb weight | 900 kgFactory: 900 kg2 Independently researched |
| Dry weight | Not yet verified |
Performance
| Maximum speed | 245 km/hFactory: 152 mph · converted2 Independently researched |
|---|---|
| 0–100 km/h | Not yet verified |
| 0–60 mph | 5.2 s2 Independently researched |
| Fuel tank | Not yet verified |
“Not yet verified” means no source has been checked for that value yet. Nothing is estimated to fill a gap.
04Colours & options
Factory colours & interiors
Original paint and trim, with the number of cars in each where a source gives it.
Not yet documented. Have a source? Contribute it.
Factory options & codes
Codes are shown exactly as written by the manufacturer.
Not yet documented. Have a source? Contribute it.
05Individual cars
Chassis register
Every documented car, with its colours, history and where it is now. Open a row for the full record. Known chassis are not automatically authenticated originals.
Not yet documented. Have a source? Contribute it.
Competition history
Every race result of the individual cars, in date order. Click a chassis number to open its full record in the register.
Not yet documented. Have a source? Contribute it.
Auction & sale history
Documented public sales of the individual cars. Click a chassis number to open its full record in the register.
Not yet documented. Have a source? Contribute it.
See one in person
Museums where an example of this car can be seen.
No example is documented on public display yet. Have a source? Contribute it.
06Reference
Identification guide
How to tell an original from a replica or later conversion.
Cars in the cached auction lots carry chassis numbers of the form 911 460 9xxx (9114609106 and 911 460 9025). A genuine car should have its numbers-matching 3.0-litre engine and gearbox (the demonstration car lists engine 6840124 and gearbox 7840598) and a Porsche Certificate of Authenticity confirming the original specification. Group 3 cars were documented by a Porsche certificate as prepared to FIA Group 3 specification.
Sources
Each number links to the exact facts it supports.
-
1
RM Sotheby's Monterey 2024 – 1974 Porsche 911 Carrera RS 3.0 Level B
- 55 911 Carrera RS 3.0 chassis produced (homologation base for the RSR 3.0)
-
2
Porsche 911 Carrera RS 3.0 (1974) Level B Stuttcars
- 56 only 56 Carrera RS 3.0s were built for 1974
- internally designated as 911/77
- bored out to 95 mm
- keeping the same 70.4mm stroke
- Bosch Kugelfischer mechanical fuel injection system
- five-speed gearbox
- only weighed in at just 900 kg
- top speed of 152 mph
- 0-60 mph in just 5.2 second
-
3
1974 Porsche 911 Carrera RS 3.0 (Monterey 2024, lot 337) Level C RM Sotheby's
- larger, aluminum-cased 3.0-liter engine upgraded with new cylinder heads
- capable of approximately 230 horsepower in street tune
- ventilated disc brakes borrowed from the 917
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