# Sofim 8140 engine

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Reciprocating internal combustion engine

Sofim 8140 engine Overview Manufacturer Sofim Also called Renault S-Type engine Production 1978–2006 Layout Valvetrain SOHC 8v

Fiat 131 Abarth diesel concept as tested during the 1977 London-Sydney Marathon rally.

The **8140** was a [diesel engine](/source/Diesel_engine) made by [Sofim](/source/Sofim) for [cars](/source/Car). Originally introduced as a [swirl chamber](/source/Indirect_injection), naturally aspirated diesel it was mostly used in commercial vehicles worldwide.

At the time of introduction, the 8140's overhead camshaft layout (driven by a [toothed timingbelt](/source/Timing_belt_(camshaft))) was unexpected in a diesel engine, which were typically [overhead valve designs](/source/Overhead_valve_engine).[1] Turbocharging the original engine, the design of which was finished in 1974, was impeded until 1985 due to restrictions of the original design.[2] [Heat flux](/source/Heat_flux) issues with the aluminium head and swirl chambers were eventually overcome, but did slow down development. Before entering the market, Fiat tested the Sofim engine in its 131 model during the 1977 London-Sydney Marathon.[3]

First direct injection models also appeared in the mid-1980s.

Additionally to the Fiat designation 8140 some engines got a Renault tag (S8 for indirect injection, S9 for direct injection).

## 2.0 L version

In the early beginning there was a 2-litre (1,995 cc) four-cylinder 65 PS (48 kW), called the Sofim 8144.65. Alongside the 2.4-litre version it was used in light commercial vehicles like the [Saviem SG2](/source/Renault_Super_Go%C3%A9lette), the first-generation [Fiat/Iveco Daily](/source/Iveco_Daily#Fiat_Daily_(1978)) (also marketed as the OM Grinta, Alfa Romeo AR8 Unic Daily, and Magirus Daily), as well as passenger cars like the [Fiat 131](/source/Fiat_131) and [132](/source/Fiat_132) models.[4][5][6]: 96 It also saw use in the [Fiat Campagnola](/source/Fiat_Campagnola).

## 2.4 L version

The original **2.4 L** big block displaces 2,445 cc (149.2 cu in), with a bore and stroke of 93 mm × 90 mm (3.7 in × 3.5 in).

Engine type Displacement cc Max power PS (kW) at rpm Max torque N⋅m (lb⋅ft) at rpm Layout and number of cylinders Valve / number of valves Car Years of production 8144.61 2445 72 (53)/4200 147 N⋅m (108 lb⋅ft)/2400 R4, IDI, naturally aspirated OHC/8 Fiat 131 Fiat 132 Fiat Argenta Fiat Campagnola Fiat Ducato Iveco Daily 1978–1983 1978–1981 1981–1985 1979–1987 1981–1989 1978–1990 S8U 720/722 2445 71 (52)/4200 150 N⋅m (111 lb⋅ft)/2200 R4, IDI, naturally aspirated OHC/8 Renault Trafic Renault Master 1981–1989 8144.21 2445 92 (68)/3800 216 N⋅m (159 lb⋅ft)/2200 R4, DI, turbocharged OHC/8 Fiat Argenta Fiat Ducato 1983–1985 1981–1989 8140.21 2445 95 (71)/4100 217 N⋅m (160 lb⋅ft)/2300 R4, DI, turbocharged OHC/8 Iveco TurboDaily 1980–1990 S8U 750 2445 92 (68)/3800 216 N⋅m (159 lb⋅ft)/2200 R4, IDI, turbocharged OHC/8 Renault Master B90 1986–1990 8144.91 2445 101 (74)/4100 217 N⋅m (160 lb⋅ft)/2300 R4, IDI, turbocharged, intercooled OHC/8 Fiat Croma Lancia Thema 1985–1989 1984–1988

## 2.5 L version

In 1990 the **2.5 L** was introduced with a longer stroke, increased by 2 mm to 92 mm. The bore remained unchanged at 93 mm, this version displaces 2,499 cc (152.5 cu in).

Engine type Displacement cc Max power PS (kW) at rpm Max torque N⋅m (lb⋅ft) at rpm Layout and number of cylinders Valve / number of valves Car Years of production 8140.07 2499 75 PS (55 kW)/4200 76 PS (56 kW)/4000 162 N⋅m (119 lb⋅ft)/2200 165 N⋅m (122 lb⋅ft)/2400 R4, DI, naturally aspirated OHC/8 Fiat Ducato Iveco TurboDaily Renault Trafic Renault Master Renault Messenger Tarpan Honker 1989–1994 1990–1994 1990–1994 1990–1997 1990–1999 1991–1996 8144.67 2499 75 PS (55 kW)/4200 162 N⋅m (119 lb⋅ft)/2200 R4, IDI, naturally aspirated OHC/8 Fiat Croma Fiat Ducato 1989–1996 1989–1994 S9U (8140.67) 2499 80 PS (59 kW)/4000 155 N⋅m (114 lb⋅ft)/2200 R4, IDI, naturally aspirated OHC/8 Renault Master Opel Movano Nissan Interstar 1997–2000 1998–2000 1999–2000 8140.67 2499 84 PS (62 kW)/4200 164 N⋅m (121 lb⋅ft)/2400 R4, IDI, naturally aspirated OHC/8 Fiat Ducato 1994–1999 8140.27 2499 95 PS (70 kW)/3800 103 PS (76 kW)/3800 216 N⋅m (159 lb⋅ft)/2000 225 N⋅m (166 lb⋅ft)/2000 R4, DI, turbocharged OHC/8 Fiat Ducato Iveco TurboDaily Renault Messenger Tarpan Honker 1989–1994 1989–1994 1989–1996 1991–1996 S9U (8140.27) 2499 88 PS (65 kW)/3800 94 PS (69 kW)/3800 200 N⋅m (148 lb⋅ft)/2200 205 N⋅m (151 lb⋅ft)/2200 R4, DI, turbocharged OHC/8 Renault Master 1989–1990 1990–1994 8140.47 2499 116 PS (85 kW)/3800 245 N⋅m (181 lb⋅ft)/2000 R4, DI, turbocharged, intercooled OHC/8 Fiat Ducato Iveco TurboDaily Renault Messenger 1994–2002 1994–2000 1994–1996 8144.97 2499 116 PS (85 kW)/3900 245 N⋅m (181 lb⋅ft)/2200 R4, IDI, turbocharged, intercooled OHC/8 Fiat Croma Lancia Thema 1989–1996 S8U-762 (8144.97) 2499 113 PS (83 kW)/4000 240 N⋅m (177 lb⋅ft)/2000 R4, IDI, turbocharged, intercooled OHC/8 Renault Safrane 1992–1996

## 2.8 L version

The **2.8 L** displaces 2800 cc having a larger bore and stroke of 94.4 mm × 100 mm (3.72 in × 3.94 in).

Engine type Displacement cc Max power PS (kW) at rpm Max torque N⋅m (lb⋅ft) at rpm Layout and number of cylinders Valve / number of valves Car Years of production 8140.63 2799 87 (64)/3800 85 (63)/3800 180 N⋅m (133 lb⋅ft)/2000 R4, IDI, naturally aspirated OHC/8 Fiat Ducato Iveco Daily Renault Mascott 1998–2000 1996–1999 1999–2004 8140.23 2799 103 (76)/3600 106 (78)/3600 240 N⋅m (177 lb⋅ft)/1900 235 N⋅m (173 lb⋅ft)/1900 250 N⋅m (184 lb⋅ft)/1800 R4, DI, turbocharged OHC/8 Iveco Daily Renault Messenger Renault Mascott 1996–2000 1996–1999 1999–2004 S9W (8140.43) 2799 115 (84)/3600 260 N⋅m (192 lb⋅ft)/1800 R4, DI, turbocharged, intercooled OHC/8 Renault Master Opel Movano Nissan Interstar 1997–2000 1998–2000 1999–2000 8140.43 2799 118 (87)/3600 122 (90)/3600 270 N⋅m (199 lb⋅ft)/1800 285 N⋅m (210 lb⋅ft)/1800 R4, DI, turbocharged, intercooled OHC/8 Fiat Ducato Citroën Jumper Peugeot Boxer Iveco Daily 1997–2000 1997–2000 1997–2000 1996–2000 8140.43S 2799 127 (93,5)/3600 125 (92)/3600 300 N⋅m (221 lb⋅ft)/1800 290 N⋅m (214 lb⋅ft)/1800 R4, DI, common rail, turbocharged, intercooled OHC/8 Fiat Ducato Citroën Jumper Peugeot Boxer Iveco Daily Renault Mascott 2000–2005 2000–2005 2000–2005 2000–2006 2000–2004 8140.43N 2799 146 (107)/3600 310 N⋅m (229 lb⋅ft)/1500 320 N⋅m (236 lb⋅ft)/1500 R4, DI, common rail, turbocharged, intercooled OHC/8 Fiat Ducato Citroën Jumper Peugeot Boxer Iveco Daily Renault Mascott 2000–2005 2000–2005 2000–2005 2000–2006 2000–2004

## F1A/F1C

After continuous development these engines are nowadays known as F1A (2.3 L) and F1C (3.0 L), available for marine and industrial use from [Fiat Powertrain Technologies](/source/Fiat_Powertrain_Technologies) (FPT) and [CNH Industrial](/source/CNH_Industrial) (since 2012) respectively. The 3-liter version is also built by [Mitsubishi Fuso](/source/Fuso_(company)) for use in their medium-duty commercials, under the name [4P10](/source/List_of_Mitsubishi_Fuso_engines#4P1x).

## References

1. **[^](#cite_ref-3Anni_1-0)** "Fiat 131 Mirafiori: da 3 anni è un successo" [Fiat 131 Mirafiori: a three-year success]. *Quattroruote: Tutte le Auto del Mondo 77/78* (in Italian). Milan: Editoriale Domus S.p.A. 1977. p. 205.

1. **[^](#cite_ref-Truck9.82_2-0)** Norbye, Jan (September 1982). Kennett, Pat (ed.). "Intertruck: Italy". *Truck*. London, UK: FF Publishing Ltd. p. 27.

1. **[^](#cite_ref-3)** ["The 1977 SIA London to Sydney Marathon: the Longest Car Rally in History"](https://www.londonsydney77.com/crews.html). [Archived](https://web.archive.org/web/20241213183728/https://www.londonsydney77.com/crews.html) from the original on 13 December 2024. Retrieved 15 February 2025.

1. **[^](#cite_ref-4)** ["1981 FIAT 131 DIESEL SUPER 2500"](https://web.archive.org/web/20160506015656/http://www.automobile-catalog.com/car/1981/713060/fiat_131_diesel_super_2500.html). *automobile-catalog.com*. Archived from [the original](http://www.automobile-catalog.com/car/1981/713060/fiat_131_diesel_super_2500.html) on 6 May 2016. Retrieved 1 January 2012.

1. **[^](#cite_ref-5)** ["FIAT 131 CL DIESEL 2000 (1978)"](https://web.archive.org/web/20120106213704/http://www.automobile-catalog.com/auta_details1.php). *automobile-catalog.com*. Archived from [the original](http://www.automobile-catalog.com/auta_details1.php) on 6 January 2012. Retrieved 1 January 2012.

1. **[^](#cite_ref-TMN_6-0)** Mazzocchi Bordone, Maria Giovanna (2010). *Fiat, tutti i modelli del novecento* [*Fiat, all the 20th century models*]. Un secolo di auto italiana. Vol. II. Rozzano (MI): Editoriale Domus.

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Adapted from the Wikipedia article [Sofim 8140 engine](https://en.wikipedia.org/wiki/Sofim_8140_engine) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Sofim_8140_engine?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.