Ford Cyclone engine

TheCycloneengine, also brandedDuratec,isFord Motor Company's latestDOHCfamily of gasolineV6 enginesintroduced in 2006.The Cyclone succeeds Ford's previous V6 engine families, including the Canadianbuilt Ford Essex engineintroduced in 1981, theFord Vulcan engineintroduced in 1985, the originalDuratec V6introduced in 1993, and theFord Cologne V6 engine,whose design dates back to 1962. The first version of the Cyclone engine, a 3.5 L V6, appeared in the 2007Ford Edgeand the Lincoln-badged luxury variant, theLincoln MKX,as well as theLincoln MKZ.Mazdabadges its versions of the CycloneMZIas it did with its versions of theDuratec V6.

Ford Cyclone engine
Overview
Manufacturer	Ford Motor Company
Also called	Duratec MZI (Mazda) EcoBoost
Production	2006–present
Layout
Configuration	60°V6
Displacement	3.3 L; 203.8 cu in (3,339 cc) 3.5 L; 213.3 cu in (3,496 cc) 3.7 L; 227.4 cu in (3,726 cc)
Cylinder bore	90.4 mm (3.56 in) 92.5 mm (3.64 in) 95.5 mm (3.76 in)
Piston stroke	86.7 mm (3.41 in)
Cylinder blockmaterial	Aluminum
Cylinder headmaterial	Aluminum
Valvetrain	DOHC4 valves per cylinderwithVCTandTi-VCT(later models)
Valvetrain drive system	Timing Chain
Combustion
Turbocharger	Twin-turbo(on Ecoboost engine)
Fuelsystem	Sequential fuel injection Direct injection(turbocharged models)
Fuel type	Gasoline
Cooling system	Water-cooled
Output
Power output	262–350 hp (195–261 kW)
Torque output	248–320 lb⋅ft (336–434 N⋅m)
Chronology
Predecessor	Ford Duratec V6

Although Ford continues using the Duratec name, the Cyclone shares no components or design with the previous Duratec and was entirely new.

Notable Cyclone features include a capacity for displacements ranging up to 4.0 L,DOHC 4-valve per cylinder heads, direct acting mechanical bucket (DAMB) camshaft tappets,variable cam timing(iVCT) on the intake camshafts, and twin-independent variable cam timing (Ti-VCT) on some later versions. Features such asGasoline direct injectionandturbochargingwere considerations in the design phase and have been added to the engine as part ofEcoBoost.The 3.5 L isULEV-IIcompliant and is capable of meeting thePZEVrequirement.

3.3 L

TheDuratec 333.3 L; 203.8 cu in (3,339 cc) is a downsized version of Duratec 35 with both port and direct injection starting in 2018 model year forFord F-150,serving as the new base engine.

Vehicle	Horsepower	Torque	Notes
2018–2023Ford F-150	290 hp (216 kW) at 6,500 rpm	265 lb⋅ft (359 N⋅m) at 4,000 rpm	Naturally Aspirated
2020–present Ford Police Interceptor Utility	285 hp (213 kW) at 6,500 rpm	260 lb⋅ft (353 N⋅m) at 4,000 rpm	Naturally Aspirated
2020–presentFord ExplorerHybrid	285 hp (213 kW) 318 hp (237 kW) combined at 6,500 rpm	260 lb⋅ft (353 N⋅m) 322 lb⋅ft (437 N⋅m) combined at 4,000 rpm	318 hp (237 kW) and 322 lb⋅ft (437 N⋅m) combined

3.5 L

TheDuratec 35displaces 3.5 L; 213.3 cu in (3,496 cc) with a 92.5 mm × 86.7 mm (3.64 in × 3.41 in) bore and stroke. Due to packaging differences in transverse (FWD) applications, the water pump is relocated to the valley behind the timing cover and is driven by the timing chain. The 3.5 L engine will fit into any engine bay the smaller Duratec 3.0 L will, and replaced it in some applications (notably theFord Taurus) in the 2008 model year. Production began in 2006 for theFord Edge,Lincoln MKX,andLincoln MKZ.

OfficialSAE certifiedengine output is 265 hp (198 kW) and 250 lb⋅ft (339 N⋅m) on 87 octane gas. This is a substantial upgrade in power from the Duratec 30 and bested all comparable 87 octane rated V6 engines at the time of its launch.For 2011, the 3.5 L received Ti-VCT, helping to boost output to 285 hp (213 kW) and 253 lb⋅ft (343 N⋅m).The 3.5 L's highest output to date is 290 bhp (216 kW; 294 PS). This version was used in the redesigned 2011 Ford Explorer.

The engine is assembled atLima EngineinLima, Ohio,with expansion planned inCleveland Engine Plant #1.

The 3.5 L was on theWard's 10 Best Engineslist for 2007.

The 3.5 L Duratec 35 installed in a 2007 Lincoln MKZ

Applications

Vehicle	Horsepower	Torque	Cam Phasing
2007–2010Ford Edge 2007–2010Lincoln MKX	265 hp (198 kW) at 6,250	250 lb⋅ft (339 N⋅m) at 4,500	iVCT
2007–2012Lincoln MKZ 2007Mazda CX-9(MZI) 2008–2012Ford Taurus 2008–2009Ford Taurus X 2008–2009Mercury Sable 2010–2012Ford FusionSport	263 hp (196 kW) at 6,250	249 lb⋅ft (338 N⋅m) at 4,500	iVCT
2009–2012Ford Flex	262 hp (195 kW) at 6,250	248 lb⋅ft (336 N⋅m) at 4,500	iVCT
2015–2017Ford F-150	282 hp (210 kW) at 6,500	253 lb⋅ft (343 N⋅m) at 4,000	Ti-VCT
2011–2014Ford Edge	285 hp (213 kW) at 6,500	253 lb⋅ft (343 N⋅m) at 4,000	Ti-VCT
2015–2018Ford Edge	280 hp (209 kW) at 6,500	250 lb⋅ft (339 N⋅m) at 4,000	Ti-VCT
2013–2019Ford Flex	287 hp (214 kW) at 6,500	254 lb⋅ft (344 N⋅m) at 4,000	Ti-VCT
2013–2019Ford Taurus	288 hp (215 kW) at 6,500	254 lb⋅ft (344 N⋅m) at 4,000	Ti-VCT
2013–2019Ford Police Interceptor Sedan	288 hp (215 kW) at 6,500	254 lb⋅ft (344 N⋅m) at 4,000	Ti-VCT
2011–2019Ford Explorer	290 hp (216 kW) at 6,500	255 lb⋅ft (346 N⋅m) at 4,000	Ti-VCT

EcoBoost

Main article:Ford EcoBoost engine

It is atwin-turbocharged,gasoline direct injected (GTDI)version of the 3.5 L. This engine is used in the 2013-2019 Ford Explorer Sport, 2010-2019 Ford Taurus SHO, 2014-2019 Ford Flex Limited EcoBoost, 2010-2019 Lincoln MKT EcoBoost, and 2010-2016 Lincoln MKS, and is optional for both the 2014-2019 Ford Police Interceptor sedan and Ford Police Interceptor Utility, both of which are based on the Taurus and Explorer.

3.7 L

TheDuratec 37is a 3.7 L; 227.4 cu in (3,726 cc) version of the Cyclone V6 intended to power heavier or premium vehicles. The 3.7 L's additional displacement comes from an increase in bore diameter to 95.5 mm (3.76 in), stroke remains identical to the 3.5 L at 86.7 mm (3.41 in). Ford Power Products sells this engine as theCSG-637for industrial uses starting in mid-2015, which replaced the 4.2L Essex and is manufactured under license by Engine Distributors Inc.

AHiroshima,Japanassembled Mazda MZI 3.7 was installed in the 2008Mazda CX-9and was the first 3.7 L Cyclone V6 to see production. The first Ford application of the 3.7 L was the 2009Lincoln MKS.

A few days before the 2009Los Angeles International Auto Show,Ford unveiled a new version of the 3.7 L for the 2011 Mustang, making it the first Duratec-badged V6 since theLincoln LSto be used in a production rear-wheel drive car. Due to packaging differences in transverse applications, the water pump was relocated to the valley behind the timing cover and is driven by the timing chain. This version of the 3.7 L (3,726 cc) features Twin IndependentVariable Cam Timing(Ti-VCT); delivers 31 mpg_‑US(7.6 L/100 km; 37 mpg_‑imp) highway mileage in the Mustang, and was the first production engine to deliver in excess of 300 hp (224 kW)and30 mpg_‑US(7.8 L/100 km; 36 mpg_‑imp).

Applications

Vehicle	Horsepower	Torque	Cam Phasing
2008–2015Mazda CX-9(MZI)	273 hp (204 kW) at 6,250	270 lb⋅ft (366 N⋅m) at 4,250	iVCT
2009–2013Mazda 6(MZI)	272 hp (203 kW) at 6,250	269 lb⋅ft (365 N⋅m) at 4,250	iVCT
2009–2012Lincoln MKS	275 hp (205 kW) at 6,250	276 lb⋅ft (374 N⋅m) at 4,250	iVCT
2010–2012Lincoln MKT	268 hp (200 kW) at 6,250	267 lb⋅ft (362 N⋅m) at 4,250	iVCT
2011–2014Ford F-150	302 hp (225 kW) at 6,500	278 lb⋅ft (377 N⋅m) at 4,000	Ti-VCT
2011–2014Ford Mustang 2011–2015Lincoln MKX 2011–2014Ford EdgeSport	305 hp (227 kW) at 6,500	280 lb⋅ft (380 N⋅m) at 4,250	Ti-VCT
2012-2019Morgan Roadster3.7	280 hp (209 kW) at 6,000	280 lb⋅ft (380 N⋅m) at 4,500	Ti-VCT
2013–2016Lincoln MKZ	300 hp (224 kW) at 6,500	277 lb⋅ft (376 N⋅m) at 4,000	Ti-VCT
2013–2016Lincoln MKS	304 hp (227 kW) at 6,500	279 lb⋅ft (378 N⋅m) at 4,000	Ti-VCT
2013–2018Lincoln MKT	300 hp (224 kW) at 6,500	275 lb⋅ft (373 N⋅m) at 4,000	Ti-VCT
2013–presentRadical RXC V6	350 hp (261 kW) at 6,750	320 lb⋅ft (434 N⋅m) at 4,250	Ti-VCT
2012–2015Ginetta G60	310 hp (231 kW) at 6,500	288 lb⋅ft (390 N⋅m) at 4,500	Ti-VCT
2015–2019Ford Transit	275 hp (205 kW) at 6000	260 lb⋅ft (353 N⋅m) at 4,000	Ti-VCT
2015–2017Ford Mustang	300 hp (224 kW) at 6,500	280 lb⋅ft (380 N⋅m) at 4,000	Ti-VCT
2016AM General MV-1	275 hp (205 kW) at 6,250	260 lb⋅ft (353 N⋅m) at 4,000	Ti-VCT
2016–2018Lincoln MKX	303 hp (226 kW) at 6,500	278 lb⋅ft (377 N⋅m) at 4,000	Ti-VCT
2017–2020Lincoln Continental	305 hp (227 kW) at 6,500	280 lb⋅ft (380 N⋅m) at 4,000	Ti-VCT
2015–present CSG-637 by Ford Power Products
2013-2019 Ford Police Interceptor Utility	304 hp (227 kW) at 6,500	279 lb⋅ft (378 N⋅m) at 4,000	Ti-VCT
2013–2019Ford Police Interceptor Sedan	305 hp (227 kW) at 6,500	279 lb⋅ft (378 N⋅m) at 4,000	Ti-VCT

Water pump issues

Water pumps on transversely mounted 3.5L V6, 3.5L EcoBoost V6, and 3.7L V6 engines have a tendency to fail and potentially ruin the engine when they do. The water pumps on these engines are internally mounted and driven by the timing chain. As a result, when they fail, antifreeze is dumped directly into the crankcase; mi xing with engine oil and potentially damaging the head gaskets and connecting rod bearings. Many of these water pump failures occur without warning and repairs often cost thousands of dollars as the engine needs to be disassembled or removed from the vehicle to access the water pump. In some cases, the engine will need to be replaced outright. A class action lawsuit was started against Ford as a result of this issue, but it was dismissed and no recall was given. All longitudinally mounted versions of the 3.3, 3.5, 3.5 EcoBoost, and 3.7 V6 use an external water pump.

Affected vehicles

• 2008-09 Mercury Sable
• 2008-09 Ford Taurus X
• 2007-18 Ford Edge
• 2009-19 Ford Flex
• 2010-12 Ford Fusion Sport
• 2007-16 Lincoln MKZ
• 2009-13 Mazda 6 3.7L V6
• 2007-15 Mazda CX-9
• 2008-19 Ford Taurus (including SHO)
• 2017-20 Lincoln Continental
• 2007-18 Lincoln MKX
• 2010-19 Lincoln MKT
• 2011-19 Ford Explorer
• 2013-19 Ford Police Interceptor Sedan
• 2013-19 Ford Police Interceptor Utility
• 2009-16 Lincoln MKS

See also

• List of Ford engines

References

• "On the Move".Ward's Auto World.Archived fromthe originalon 2005-01-09.RetrievedMarch 1,2005.