Truck Trend is the source for official specifications, payload, towing capacity, and other information that matters to real truck users. Check out the latest info for the 2011 Ford Flex mid-size SUV. The Flex features a 3.5-liter V-6 (262 hp @ 6,250 rpm (estimated)) or a 3.5-liter V-6 EcoBoost (355 hp @ 5,700 rpm) engine mated with a 6-speed automatic transmission.


2011 Ford Flex Technical Specifications
BODY
Construction Steel unibody
Final Assembly Location Oakville Assembly
POWERTRAIN AND CHASSIS
ENGINE
TYPE 3.5-liter V-6 Duratec 35 Engine 3.5-liter V-6 EcoBoost(TM)
Manufacturing location Lima Engine Plant, Ohio Cleveland Engine Plant, Ohio
Configuration 60° V-6, aluminum block/heads 60° V-6, aluminum block/heads
Intake Manifold Composite, split plenum Single-piece aluminum
Exhaust Manifolds Cast iron Dual-wall fabricated steel
Crankshaft Forged steel Forged steel
Redline 6,700 rpm 6,200 rpm (fuel cutoff)
Idle Speed in Drive 620 rpm 600 rpm
Throttle Body 65 mm electronic 65 mm electronic
Valvetrain Direct acting mechanical bucket, 4 valves per cylinder, intake variable camshaft timing DOHC 4 valves per cylinder, intake variable camshaft timing
Valve Diameter Intake: 37mm; Exhaust: 31mm Intake: 37mm; Exhaust: 31mm
Pistons High-temperature cast aluminum alloy with low-friction coated skirts, low tension rings High-temperature cast aluminum alloy with low-friction coated skirts, low tension rings with direct injection bowl
Connecting Rods Cracked-powder metal Cracked-powder metal
Ignition Pencil coil Pencil coil
Bore x Stroke 3.6 x 3.4 in. / 92.5 x 88.7 mm 3.6 x 3.4 in. / 92.5 x 88.7 mm
Displacement 213 cu. in. / 3,496 cc 213 cu. in. / 3,496 cc
Compression Ratio 10.3:1 10.0:1
Horsepower 262 @ 6,250 rpm (estimated) 355 @ 5,700 rpm (premium fuel)
Horsepower Per Liter 74.8 (estimated) 101.5 Hp/L
Torque 248 @ 4,500 rpm lb.-ft. (estimated) 350 ft.-lb. @ 3,500 rpm lb.-ft. advertised (premium & regular fuel) 350 lb.-ft. @1,500 to 5,250 rpm
Recommended Fuel 87 octane unleaded Designed to run on regular fuel with an octane rating of 87 or higher. For best overall performance, premium fuel with an octane of 91 or higher is recommended
Fuel Capacity 18.6 gallons 18.6 gallons
Fuel Injection Sequential multi-port electronic fuel injection Direct injection
Oil Capacity 5.5 quarts with filter 6.0 quarts with filter
Recommended Oil GF4, 5W-20 GF4, 5W-20
Emission Control Closed loop with catalyst Closed loop with catalyst
Fuel economy FWD 17/24 AWD 16/22 AWD 16/21
ENGINE
Federal Standards Tier 2/Bin 5 tailpipe, LEVII evaporative Tier 2/Bin 5 tailpipe, LEVII evaporative
California Standards ULEVII tailpipe, LEVII evaporative ULEVII tailpipe, LEVII evaporative
DRIVETRAIN
Layout Front-wheel drive and all-wheel drive All-wheel drive
TRANSMISSION
Standard 6-speed automatic overdrive 6-speed automatic overdrive
Gear Ratios
1st 4.48:1 4.48:1
2nd 2.87:1 2.87:1
3rd 1.84:1 1.84:1
4th 1.41:1 1.41:1
5th 1:01 1:01
6th 0.74:1 0.74:1
Reverse 2.88:1 2.88:1
Final Drive FWD: 3.16; AWD: 3.39 AWD: 3.16:1
SUSPENSION
Front Gas-pressurized MacPherson strut, rear-facing L-shaped lower control arm with hydro-bushings with isolated subframe and stabilizer bar
Rear Multi-link, fully independent suspension with upper and lower control arms, fully isolated subframe and stabilizer bar
STEERING
Type Power rack-and-pinion Electric Power Assist Steering (EPAS)
Steering Column Tilt
Ratio 17:01
Turns, lock-to-lock 3.15
Turning circle curb-to-curb 12.4 m / 40.7 ft.
BRAKES
Type 4-wheel ABS (4 channel); AdvanceTrac (R) with RSC (R) (Roll Stability Control(TM)) (Standard)
Front Ventilated Disc
Swept Area 149.8 sq. in.
Rear Disc
Swept Area 136.4 sq. in.
Power assist Vacuum with Brake Assist
WHEELS AND TIRES
SE 17-in. painted aluminum; P235/60R17 BSW tires
SEL Optional 18-in. machined aluminum; P235/60R18 BSW tires 20-in. bright painted aluminum; P255/45R20 tires.
Limited Optional 19-in. polished aluminum; P235/55R19 BSW tires 20-in. bright painted aluminum; P255/45R20 BSW tires 20-in. 5-spoke painted luster nickel aluminum ; P255/45R20 AS tires