Sofim 8140 engine

Quality 0.50 · 1 view · Updated 2 months ago

title: "Sofim 8140 engine" type: doc version: 1 created: 2026-02-28 author: "Wikipedia contributors" status: active scope: public tags: ["diesel-engines-by-model", "fiat-engines", "psa-engines", "renault-engines"] topic_path: "general/diesel-engines-by-model" source: "https://en.wikipedia.org/wiki/Sofim_8140_engine" license: "CC BY-SA 4.0" wikipedia_page_id: 0 wikipedia_revision_id: 0

::data[format=table title="Infobox engine"]

Field	Value
name	Sofim 8140 engine
manufacturer	Sofim
aka	Renault S-Type engine
production	1978–2006
valvetrain	SOHC 8v
::

::figure[src="https://upload.wikimedia.org/wikipedia/commons/6/6e/Fiat_131_Abarth_diesel.jpg" caption="Fiat 131 Abarth diesel concept as tested during the 1977 London-Sydney Marathon rally."] ::

The 8140 was a diesel engine made by Sofim for cars. Originally introduced as a swirl chamber, 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) was unexpected in a diesel engine, which were typically overhead valve designs. Turbocharging the original engine, the design of which was finished in 1974, was impeded until 1985 due to restrictions of the original design. 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.

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).

{{anchor|2.0|1995}} 2.0 L version

In the early beginning there was a 1,995 cc four-cylinder 65 PS, called the Sofim 8144.65. Alongside the 2.4-litre version it was used in light commercial vehicles like the Saviem SG2, the first-generation Fiat/Iveco Daily (also marketed as the OM Grinta, Alfa Romeo AR8 Unic Daily, and Magirus Daily), as well as passenger cars like the Fiat 131 and 132 models. It also saw use in the Fiat Campagnola.

{{anchor|S8U|2.4|2445}} 2.4 L version

The original 2.4 L big block displaces 2445 cc, with a bore and stroke of 93 × 90 mm.

{{anchor|S9U|2499}} 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 2499 cc.

::data[format=table] | 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/4200 76 PS/4000 | 162 Nm/2200 165 Nm/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/4200 | 162 Nm/2200 | R4, IDI, naturally aspirated | OHC/8 | Fiat Croma Fiat Ducato | 1989–1996 1989–1994 | | S9U (8140.67) | 2499 | 80 PS/4000 | 155 Nm/2200 | R4, IDI, naturally aspirated | OHC/8 | Renault Master Opel Movano Nissan Interstar | 1997–2000 1998–2000 1999–2000 | | 8140.67 | 2499 | 84 PS/4200 | 164 Nm/2400 | R4, IDI, naturally aspirated | OHC/8 | Fiat Ducato | 1994–1999 | | 8140.27 | 2499 | 95 PS/3800 103 PS/3800 | 216 Nm/2000 225 Nm/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/3800 94 PS/3800 | 200 Nm/2200 205 Nm/2200 | R4, DI, turbocharged | OHC/8 | Renault Master | 1989–1990 1990–1994 | | 8140.47 | 2499 | 116 PS/3800 | 245 Nm/2000 | R4, DI, turbocharged, intercooled | OHC/8 | Fiat Ducato Iveco TurboDaily Renault Messenger | 1994–2002 1994–2000 1994–1996 | | 8144.97 | 2499 | 116 PS/3900 | 245 Nm/2200 | R4, IDI, turbocharged, intercooled | OHC/8 | Fiat Croma Lancia Thema | 1989–1996 | | S8U-762 (8144.97) | 2499 | 113 PS/4000 | 240 Nm/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 × 100 mm.

::data[format=table] | 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 Nm/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 Nm/1900 235 Nm/1900 250 Nm/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 Nm/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 Nm/1800 285 Nm/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 Nm/1800 290 Nm/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 Nm/1500 320 Nm/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 | ::

{{anchor|Today|F1A|F1C}} 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 (FPT) and CNH Industrial (since 2012) respectively. The 3-liter version is also built by Mitsubishi Fuso for use in their medium-duty commercials, under the name 4P10.

References

(1977). "Quattroruote: Tutte le Auto del Mondo 77/78". Editoriale Domus S.p.A.
Norbye, Jan. (September 1982). "Intertruck: Italy". FF Publishing Ltd.
"The 1977 SIA London to Sydney Marathon: the Longest Car Rally in History".
"1981 FIAT 131 DIESEL SUPER 2500".
"FIAT 131 CL DIESEL 2000 (1978)".
Mazzocchi Bordone, Maria Giovanna. (2010). "Fiat, tutti i modelli del novecento". Editoriale Domus.

::callout[type=info title="Wikipedia Source"] This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page. ::