Editing Ford Cologne V6 engine (section)

==2.9==
[[File:Ford Cologne V6 2.9 left.jpg|thumb|Left side of a 2.9 litre: Unlike the 2.8, the 2.9 does not merge the three exhaust ports into two manifold pipes.]]
[[File:Ford Cologne V6 2.9 top.jpg|thumb|Above view of a 2.9 litre; front is to the right: Note the pronounced stagger of the cylinder banks. This is a fuel-injected engine. The plenum chamber is silver, and the fuel rail is painted green.]]
The 2.9&nbsp;L shares the same basic design as the 2.8&nbsp;L model, bar a few subtle differences. The camshaft is chain-driven rather than gear driven, so it rotates in the same direction as the crankshaft. The arrangement of the exhaust valves is different, eliminating the "hot-spot" that existed on the 2.8&nbsp;L model. The cylinder heads also sport a more conventional three-port exhaust manifold. Output was rated at {{cvt|140|hp|kW PS|0}} at 4600&nbsp;rpm and {{cvt|170|lbft|0}} at 2600&nbsp;rpm for the light trucks (1986–92 Ranger and 1986–90 Bronco II) and {{cvt|144|hp|kW PS|0}} at 4800&nbsp;rpm for the Merkur Scorpio in the US market and {{cvt|150|to|160|hp|kW PS|0}} for the European market. Bore and stroke was {{cvt|93x72|mm|in|2}} for a total displacement of {{cvt|2935|cc|L cuin|1|disp=flip}}.

In Europe, this engine was commonly fitted with the [[Robert Bosch GmbH|Bosch]] [[Jetronic#L-Jetronic (1974–1989)|L-Jetronic]] fuel-injection system, married to Ford's EEC-IV engine management. Because of this difference over the 2.8&nbsp;L model, this version was a more popular candidate for aftermarket modification (typically turbocharging) from companies such as [[Janspeed]] and Turbo Technics.

Applications:
* [[TVR S Series|TVR S2/S3(C)/S4C]]
* [[Ford Bronco II]]
* [[Ford Ranger (North America)|Ford Ranger]]
* [[Ford Sierra]] XR 4X4, Ghia 4x4 Estate
* [[Ford Granada (Europe)|Ford Granada]]
* [[Ford Scorpio]]
* [[Ford Transit]]
* [[Merkur Scorpio#Merkur Scorpio|Merkur Scorpio]]
* [[Panther Kallista]]
* Middlebridge Scimitar GTE
[[File:Bronco22.9.jpg|thumb|Top front view of a 2.9 from a 1986 Bronco II. The 2.9 found in Rangers and the like feature a distinctive upper intake manifold that reads "2.9L Electronic Fuel Injection" These 2.9s also feature a single throttle body as opposed to dual throttle bodies.]]
[[File:Ford Cologne V6 2.9 back.jpg|thumb|upright|View of a 2.9 litre from the rear, flywheel side: Note the 60° between the cylinder banks.]]
[[File:Cosworth V6 24v.jpg|thumb|The 2932&nbsp;cc Cologne V6 24v BOA engineered by Cosworth]]
===2.9 Cosworth===
A special twin [[DOHC]] (QUAD CAM) version of the 2.9 was created by [[Cosworth Engineering]] in 1991. Although it shared the same block as the standard 2.9, power output was up to {{cvt|195|PS|kW hp|0}} and torque was boosted to {{cvt|203|lbft|Nm|0}} at 4500&nbsp;rpm. This engine (code BOA) was used in the Ford Scorpio Cosworth 24V. This engine configuration was only paired with an improved A4LDe automatic gearbox with partial electronic shift control. No [[manual gearbox]] was offered from the factory.

The standard Ford-issued block was machined differently to improve strength. In place of the single-cam arrangement, an endless duplex hydraulically tensioned timing chain was used to drive the overhead cams. The chain measured {{cvt|2.2|m}}.<ref>2.9 24V Cosworth BOA Engine Ford Service guide</ref> The casting and bearings for the standard underhead cam were repurposed for a shaft which drove the oil pump. Ignition was controlled by an [[Ford EDIS|EDIS]]-6 system, which would become a standard feature.

The engine was known for its substantial increase in power delivery above 4000&nbsp;rpm relative to the unmodified version; in recent years, the engine has become a popular choice as a replacement engine for the Ford Sierra XR4x4 and XR4i.

An improved version of this engine (code BOB) was available in the restyled 1995 Ford Scorpio. Differences included two simplex chains with two hydraulic tensioners and the addition of a variable-length intake system called [[Variable length intake manifold|VIS]]. Power output was increased to {{cvt|210|bhp|kW PS|0}}. This was mated to a fully electronically controlled A4LDE [[automatic transmission]].