Audiovox Prestige Platinum APS-250 Specifications download pdf (Page 16)

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RE&T: 2011 Source Book

Revised January 2011

F-250/F-350/F-450

SD Pickups

F-250/F-350/F-450

Super Duty

Pickups

Performance/Handling

— 6.7L Power Stroke

V8 Turbo Diesel

— Power Stroke Turbocharging Basics

on this page

2011

Diesel Engine

6.7L Power Stroke

V8 Turbo Diesel

• NewtoSuperDutyPickupsfor2011

• ThecleanestPowerStrokedieselengineever

• Ford-engineered,Ford-testedandFord-built

• Improvedhorsepowerandtorquecomparedtothe2010

6.4L diesel

• BiodieselcapabilityuptoB20

– Designed to handle a mixture of up to 20 percent

biodiesel by volume and 80 percent petroleum

diesel fuel

– Biodiesel of ASTM D7467 Grade S15 (15 ppm sulfur

maximum) should be used

• Compactedgraphiteiron(CGI)deep-skirtengineblock

and aluminum cylinder heads help reduce weight while

maintaining maximum strength for the horsepower

and torque capacity of the Power Stroke V8

– First North American use of CGI in a

Super Duty-class vehicle

– CGI is stronger than traditional cast iron

• Aluminumcylinderheads

– Help reduce weight

– Feature dual water jackets for optimal cooling and

increased strength

– Six-head-bolt design helps improve sealing and

maintain cylinder integrity

• Uniqueinboardexhaustdesign

– An automotive industry first for a modern production

diesel engine

– Helps reduce exhaust system volume and heat

transfer to the engine compartment

– Helps improve throttle response

– Helps improve NVH (Noise, Vibration and Harshness)

characteristics

• Single-sequentialturbocharger

– Includes an industry-first double-sided compressor

wheel mounted on a single shaft

– Combines the advantages of a twin-turbocharged

system (fast throttle response) and a large

turbocharged system (ability to compress and force

air into the engine for more power) into one unit

– Provides up to 30 psi of boost

– Features a center-mounted pedestal design at

the rear of the engine to help improve NVH

characteristics and access for service

• High-pressurecommon-railfuelinjection

– Utilizes piezo injector technology to deliver fuel at

30,000 psi

– Delivers up to 5 fuel injections per combustion cycle

for optimum throttle response, fuel efficiency and

NVH characteristics

– Delivers quiet operation throughout the entire rpm

range (similar to gasoline-engine noise levels)

– Helps the Power Stroke V8 meet the stringent 2010

diesel emissions standards

• Instant-startglowplugshelpprovidequickengine

starts, even in the extremely cold conditions

• Structuraloilpanboltstotheengineblockand

transmission to help improve powertrain stiffness

• NewOrganicAcidTechnology(OAT)orange

engine coolant

• IntelligentOilLifeMonitor

MAKE THE POINT: Power Stroke Turbocharging Basics

Turbocharger

A turbocharger (or turbo for

short) uses the engine‘s exhaust

gases to spin a turbine, which

in turn drives a compressor to

force more air into the engine.

Increasing the airflow allows

more power to be generated.

A turbo consumes very little

power under light loads or easy

engine use and allows smaller

engines to generate the power of

a larger displacement. When extra

power is needed, the turbo spins

into action.

Turbo Lag

This is the time it takes for the

turbocharger to spin after the driver

steps on the accelerator. This delay can

be caused by the turbo having to wait

for the exhaust gas to spin the turbine

and drive the compressor. Another

factor in lag is the size of the turbo.

Bigger turbos make more power, but

take longer to respond. In the past,

the typical solution was to use two

smaller turbos for faster response.

However, this approach added the cost

and complexity of two turbos, and

generated twice the heat.

The Innovative

Power Stroke Approach

The all-new 6.7L Power Stroke

debuts a new single-sequential

turbocharger design. Instead of two

separateturbos,PowerStroke’s

single-sequential turbo places two

compressors back-to-back on a

common shaft in a single housing.

The Power Stroke Benefit

This design allows the system to

have a response time similar to a

twin-turbo package, while reducing

cost, weight, complexity and

underhood heat.

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Audiovox Prestige Platinum APS-250 Specifications Page 16

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