Cosworth DFR engine
E1037766
The Cosworth DFR engine is a naturally aspirated 3.5-liter V8 racing engine developed for Formula One and other top-tier motorsport series during the late 1980s and early 1990s.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Cosworth DFR engine canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T13315344 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Cosworth DFR engine Context triple: [Cosworth, notableProduct, Cosworth DFR engine]
-
A.
Cosworth DFV engine
The Cosworth DFV engine is a legendary 3.0-liter V8 racing engine that dominated Formula One from the late 1960s through the 1980s, powering numerous championship-winning cars.
-
B.
Ford-Cosworth BDA engine
The Ford-Cosworth BDA engine is a high-performance, twin-cam, four-cylinder racing and rally engine developed by Cosworth for Ford in the late 1960s, renowned for its success in motorsport and its advanced belt-driven camshaft design.
-
C.
Ford-Cosworth YB engine
The Ford-Cosworth YB engine is a high-performance turbocharged four-cylinder powerplant famed for its success in motorsport and its use in iconic Ford Sierra and Escort RS Cosworth models.
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D.
Rover K-series engine
The Rover K-series engine is a lightweight, all-aluminum inline-four automotive engine introduced in the late 1980s, known for its innovative construction, widespread use in Rover and MG cars, and later reputation for head gasket issues.
-
E.
BMC A-series engine
The BMC A-series engine is a small-displacement inline-four petrol engine widely used in British cars from the 1950s through the 1990s, most famously powering the original Mini.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Cosworth DFR engine Target entity description: The Cosworth DFR engine is a naturally aspirated 3.5-liter V8 racing engine developed for Formula One and other top-tier motorsport series during the late 1980s and early 1990s.
-
A.
Cosworth DFV engine
The Cosworth DFV engine is a legendary 3.0-liter V8 racing engine that dominated Formula One from the late 1960s through the 1980s, powering numerous championship-winning cars.
-
B.
Ford-Cosworth BDA engine
The Ford-Cosworth BDA engine is a high-performance, twin-cam, four-cylinder racing and rally engine developed by Cosworth for Ford in the late 1960s, renowned for its success in motorsport and its advanced belt-driven camshaft design.
-
C.
Ford-Cosworth YB engine
The Ford-Cosworth YB engine is a high-performance turbocharged four-cylinder powerplant famed for its success in motorsport and its use in iconic Ford Sierra and Escort RS Cosworth models.
-
D.
Rover K-series engine
The Rover K-series engine is a lightweight, all-aluminum inline-four automotive engine introduced in the late 1980s, known for its innovative construction, widespread use in Rover and MG cars, and later reputation for head gasket issues.
-
E.
BMC A-series engine
The BMC A-series engine is a small-displacement inline-four petrol engine widely used in British cars from the 1950s through the 1990s, most famously powering the original Mini.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
V8 engine
ⓘ
internal combustion engine ⓘ racing engine ⓘ |
| aspiration | naturally aspirated ⓘ |
| basedOn |
Cosworth DFV engine
NERFINISHED
ⓘ
Cosworth DFY engine NERFINISHED ⓘ |
| bore | approximately 90 mm ⓘ |
| category | naturally aspirated Formula One engine ⓘ |
| configuration | V8 ⓘ |
| coolingSystem | water-cooled ⓘ |
| countryOfOrigin | United Kingdom ⓘ |
| cylinderArrangement | 90-degree V ⓘ |
| cylinders | 8 ⓘ |
| displacement | 3.5 L ⓘ |
| era |
early 1990s
ⓘ
late 1980s ⓘ |
| fuelSystem | electronic fuel injection ⓘ |
| fuelType | gasoline ⓘ |
| ignitionSystem | electronic ignition ⓘ |
| intendedUse |
Formula One
NERFINISHED
ⓘ
Group C NERFINISHED ⓘ sports car racing ⓘ top-tier motorsport ⓘ |
| introducedForSeason | 1988 Formula One season NERFINISHED ⓘ |
| manufacturer | Cosworth NERFINISHED ⓘ |
| material |
aluminium alloy cylinder heads
ⓘ
aluminium alloy engine block ⓘ |
| maxEngineSpeed | over 11,000 rpm ⓘ |
| powerOutput | over 600 hp ⓘ |
| predecessor | Cosworth DFV engine NERFINISHED ⓘ |
| regulation | 3.5-litre Formula One engine formula ⓘ |
| stroke | approximately 68.6 mm ⓘ |
| successor | Cosworth HB engine NERFINISHED ⓘ |
| usedByTeam |
AGS
NERFINISHED
ⓘ
Arrows Grand Prix International NERFINISHED ⓘ Benetton Formula NERFINISHED ⓘ Coloni NERFINISHED ⓘ EuroBrun NERFINISHED ⓘ Ligier NERFINISHED ⓘ Minardi NERFINISHED ⓘ Onyx Grand Prix NERFINISHED ⓘ Rial Racing NERFINISHED ⓘ Scuderia Italia NERFINISHED ⓘ Tyrrell Racing Organisation NERFINISHED ⓘ |
| usedInCompetition |
Formula One World Championship
NERFINISHED
ⓘ
Group C sports cars NERFINISHED ⓘ World Sportscar Championship NERFINISHED ⓘ |
| valvesPerCylinder | 4 ⓘ |
| valvetrain | DOHC ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Cosworth DFR engine Description of subject: The Cosworth DFR engine is a naturally aspirated 3.5-liter V8 racing engine developed for Formula One and other top-tier motorsport series during the late 1980s and early 1990s.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.