Fiat Twin Cam engine
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| Manufacturer | Fiat/Lancia |
|---|---|
| Production | 1959–2000 |
Designed by Aurelio Lampredi the Fiat Twin Cam (also known as the Lampredi Twin) was an advanced inline-4 automobile engine produced from 1959 through 1994 as a Fiat/Lancia engine until it was replaced by the "family B" series of engines. These B-series engines were designed as turbodiesel units, petrol units and specific Alfa Romeo Twin Spark engine (replacing the original Alfa Romeo Twin-Cam in all front-wheel drive Alfa Romeos).[1] As the name implies, it was a DOHC design, which was quite unusual in the late 1950s. The engine was produced in a large number of displacements, ranging from 1297 cc to 2111 cc and was used in Fiat, Lancia, Morgan and Alfa Romeo automobiles. Fiat was the pioneer in engine development during the time period, using a monoblock technology, belt driven camshafts and aluminium alloy heads. Easy to maintain and robust, all versions of this engine were based on the same core. This meant that boring the cylinders of the block, it could be easily upgraded to a larger size. Highly versatile, a version of 1.6 liters producing 110 hp (82 kW), can be tuned to output over 200. Both turbocharged and supercharged versions were also offered.
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[edit] Applications
- 1972-1976 Fiat 124 Abarth
- 1966-1985 Fiat 124 Saloon/Spider/Coupe
- 1967-1972 Fiat 125
- 1972-1984 Fiat 132/Argenta
- 1972-1984 Lancia Beta Saloon/Coupe/Spider/HPE
- 1977-1980 Fiat 131 Abarth
- 1974-1984 Fiat 131/Mirafiori
- 1975-1984 Lancia Montecarlo
- 1981-1985 Morgan 4/4
- 1978-1988 Fiat Ritmo/Strada
- 1980-1994 Lancia Delta/HF/Integrale; Alfa Romeo 155 Q4
- 1981-1984 Lancia Trevi
- 1982-1983 Lancia Rally
- 1984-1990 Fiat Regata
- 1985-1990 Fiat Regata Weekend
- 1985-1996 Fiat Croma
- 1985-1994 Lancia Thema
- 1994-1998 Lancia Kappa
- 1989-2000 Lancia Dedra
- 1989-1995 Fiat Tempra/Fiat Tipo
- 1994-2000 Fiat Coupé
- 1999-2006 Fiat Punto HGT Abarth
[edit] Displacements
| Displacement (cc) |
Bore (mm) |
Stroke (mm) |
|
|---|---|---|---|
| 1297 | 76 | 71.5 | Lancia Beta, Fiat 131 Supermirafiori[citation needed] |
| 1301 | 76.1 | 71.5 | Lancia Beta[citation needed] |
| 1367 | 78 | 71.5 | Lancia Beta, Fiat 131 Supermirafiori[citation needed] |
| 1438 | 80 | 72 | Fiat 124 Special T/Coupe/Spider |
| 1585 | 84 | 71.5 | Fiat 131 Supermirafiori/Argenta/Ritmo 105TC; Lancia Beta/Delta GT/Delta HF |
| 1592 | 80 | 79.2 | Fiat 124 Special T/Coupe, Fiat 132; Lancia Beta |
| 1608 | 80 | 80 | Fiat 124 Coupe/Spider, Fiat 125 |
| 1756 | 84 | 79.2 | Fiat 124 Coupe/Spider/132/Tipo/Tempra; Lancia Beta/Delta/Prisma |
| 1995 | 84 | 90 | Fiat Spider 2000/132/Argenta/Strada/Ritmo/Regata/Croma/Tipo/Tempra; Lancia Beta/Delta/Thema |
[edit] Motorsport
The Fiat Twin Cam engine has been widely used in motorsport and has been the most successful engine in the history of the World Rally Championship. The World Rally Championship for Manufacturers has been won by Fiat and Lancia, using engines based on the Lampredi Twin Cam engine, for a total of 10 years.
| Constructor | Car used in World Championship | Seasons | Manufacturers' Titles |
|---|---|---|---|
 Fiat |
Fiat 124 Abarth | 1970–1975 | 0 |
| Fiat |
Fiat 131 Abarth | 1976–1982 | 3 (1977, 1978, 1980) |
| Lancia |
Lancia 037 | 1982–1986 | 1 (1983) |
| Lancia |
Lancia Delta HF 4WD and Delta Integrale | 1987–1993 | 6 (1987–1992) |
[edit] Footnotes
- ^ Excluding the Alfasud (and derived) cars which used an original flat-four Alfa Romeo "boxer" engine
