2012 FORD MUSTANG engine

Introduction
3
Welcome 3
Boss 302 history 4
Breaking-in your vehicle 5
Boss302 Unique Features
6
Unique features 6
Performance gauges 9
Driving your Boss302
19
AdvanceTrac19
Driving through water 19
Ground clearance 19
Washing your vehicle 20
Chassis
21
Tire Information
22
Wheel lug nut torque 22
Roadside Emergencies
27
Wrecker towing 27
Maintenance and Specifications
30
Battery 31
Engine oil 31
Refill capacities 32
Engine drivebelt 35
Table of Contents
1
2012 05+ Mustang(197)
Supplement, 2nd Printing
USA(fus)

UNIQUE FEATURES
Boss302
•Boss302 high performance V8 engine
•Forged pistons and rods
•Runners in the box intake manifold
•CNC machined high-flow ported aluminum cylinder heads
•Steel-backed high RPM clutch
•Unique steering tuning
•Unique chassis tuning with manually-adjustable dampers
•Brembo four-piston front brakes with unique high-performance rear
brake pads
•Low expansion brake hoses
•Unique grille, front lower fascia and rear lower fascia
•Unique hood stripes and body side stripes
•Boss302 interior package with unique interior finish panels and
instrument cluster (Recaro seats optional)
•Quad exhaust with rear and side exiting pipes
•Unique staggered width 19x9 inch and 19x9.5 inch wheels with
summer only performance tires
•3.73 rear axle ratio with limited slip (optional Torsendifferential)
•High performance radiator and engine oil cooler
•AdvanceTracstability enhancement system with sport mode
specifically calibrated and race track tuned. Refer to theDriving
section in yourOwner’s Guidefor more information.
•
- After delivery, your Ford dealer can reprogram your
engine control module to use the red key as a
. Once
enabled, the
provides optimal racetrack performance via
a unique engine calibration. See http://www.trackey.ford.com for more
information.
Boss302 Unique Features
6
2012 05+ Mustang(197)
Supplement, 2nd Printing
USA(fus)

PERFORMANCE GAUGES
Your vehicle may be equipped with a dash mounted gauge pack that
contains oil pressure, engine coolant temperature, and performance
gauges.
WARNING:The performance gauge function should only be
used while in a track environment. The driver’s primary
responsibility is the safe operation of their vehicle, only use this
feature when it is safe to do so.
Oil pressure gauge- measures oil
pressure from 0-100 psi (0-689 kPa)
Note:It is normal for the oil
pressure to read high (80 -100 psi)
(551 - 689 kPa) during a cold start
and may exceed 100 psi (689 kPa)
in some conditions. The oil pressure
gauge needle may also move quickly
back and forth (flutter) in some
conditions.
Engine coolant temperature
gauge- measures engine coolant
temperature 100-260°F (38-127°C).
Note:It is normal for the engine
temperature needle to NOT point at
12 o’clock for stabilized driving.
Boss302 Unique Features
9
2012 05+ Mustang(197)
Supplement, 2nd Printing
USA(fus)

Performance gauge- performs the following functions:
•Real time mode – measures G
force/acceleration (Note:
Requires initial calibration) See
Setup information.
•1/4 mile data including reaction
time
•0-60 mph times
•60-0 mph distances
•Horsepower -Note:This reading
will vary from advertised engine horsepower. It includes losses
through the drivetrain and other factors such as fuel octane, wind,
weight, road grade, etc.
•Setup
This gauge is intended for off-road use only (racetracks or other
controlled courses or settings).
Real time mode:
The performance gauge calculates/displays acceleration and G-forces
while in real time mode. The customer is required to calibrate/initialize
the performance gauge to ensure proper acceleration measurements
while in real time mode (see Setup section). At vehicle start up, the
performance gauge defaults to real time mode. The gauge stays in real
time mode until the user selects one of the other five operating modes.
The gauge returns to real time mode after exiting the operating modes.
In real time mode, the gauge will display the driver’s choice of
acceleration/deceleration or lateral g-forces on an LED graph and display.
Acceleration forces will be displayed on the bar graph to the right of
center. Deceleration forces will be displayed on the bar graph to the left
of center.
•Press B to change the display to the lateral axis.
•See bar graph forward/lateral high/low under Setup to change the
range of g-forces capable of being displayed on the LED.
Peak Recall – While in any mode, the gauge will record the highest
g-force values for all four axes (accel, decel, left and right).
•Press C to view these values.
•Press A to move to the next value.
•Press B to clear the value.
Boss302 Unique Features
10
2012 05+ Mustang(197)
Supplement, 2nd Printing
USA(fus)

Horsepower mode-Note:This reading will vary from advertised
engine horsepower. It includes losses through the drivetrain and other
factors such as fuel octane, wind, weight, road grade, etc. In order to
obtain the most accurate numbers, it is important that the correct
vehicle weight be stored in the gauge (see Setup section). The gauge has
been preset with the weight preset to 3830 lb (1737 kg) and should be
modified as needed. To select horsepower mode, do the following:
1. Press MODE until “HP” (horsepower) is displayed.
2. Make sure the vehicle is at a complete stop at the beginning of your
course, then press ENTER to confirm. The display will show “CAL” to
indicate mode has been entered.
When the display reads “Go”,
1. Lightly accelerate your vehicle through first gear.
2. Shift between gears at approximately halfway to redline.
3. In second gear, (ideally at 2,000 rpm) accelerate under full throttle up
to, but not exceeding, the engine redline.
4. Let off the accelerator and safely stop the vehicle to view your results
once redline has been reached.
5. The gauge will display your horsepower results. Press B to view your
results again. See the section on viewing best run/last run/etc results.
Setup mode:(There are eight parameters that can be adjusted in Setup
mode).
To select Setup mode, do the following:
1. Press the mode button until “Sup” is displayed.
2. Press the enter button to confirm.
3. Press the exit (C button) to exit setup mode.
Vehicle calibration:
Performing this operation will be necessary in order to obtain correct
readings from the performance gauge while operating in real time mode
and performance modes. The vehicle calibration function allows the
gauge to determine its angle, pitch, and general location in your vehicle,
and to compensate accordingly, allowing you to mount it virtually
anywhere in any position, and still get accurate readings.
To select vehicle calibration mode, enter Setup as described above, then
press the A button until “VCAL” is displayed, then press ENTER to
confirm. “REDY” should display. Bring the vehicle to a complete stop on
a flat and level surface and then press ENTER. “HOLD” will display. At
Boss302 Unique Features
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2012 05+ Mustang(197)
Supplement, 2nd Printing
USA(fus)

To select bar graph forward low mode, enter Setup, then press the A
button until “bGFL” is displayed. Press ENTER to confirm. The current
setting should be displayed, and can be adjusted up and down from .3 to
2.0 G’s using the A and C buttons. When the desired result is displayed,
press ENTER to confirm. The bar graph low setting is preset to -0.7G.
Bar graph lateral setting:
The bar graph lateral mode allows you to adjust the G force scale for
lateral acceleration (cornering) as shown on the gauge when operating
on the lateral axis in real time mode. For example, if you set the “bGL”
to 1g, when the bar is fully lit on either side, the vehicle is achieving 1g
of force or more during cornering.
To select bar graph lateral mode, enter Setup, then press A until “bGL”
is displayed. Press ENTER to confirm. The current setting should be
displayed, and can be adjusted up and down from .3 to 2.0 G’s using the
A and C buttons. When the desired result is displayed, press ENTER to
confirm.
Reaction time:
Enabling this function allows the gauge to test your reaction time while
in the 1/4 mile mode only. With reaction time on, the gauge will perform
a dragstrip “Christmas Tree” start and then measure the time it takes
between when it displays “Go” and when the vehicle starts to move.
•To enable or disable reaction time, enter Setup mode, and press A
until “rEAC” is displayed. Press ENTER to confirm. The display will
then read “on” if reaction time feature is enabled, or “oFF” if it is
disabled.
•To enable reaction time, press A. To disable, press C. When the
desired result is displayed, press ENTER to confirm.
Start G’s:
The Starting G’s setting allows the customer to adjust the sensitivity of
the accelerometer within the performance gauge. This setting affects
how quickly the gauge detects movement of the vehicle when
determining vehicle start time. Too low of a setting may result in false
starts due to engine vibration. Too high of a setting may result in the
gauge not properly detected at the start of the run. The gauge has been
optimally programmed to 0.7 G’s for this vehicle.
Boss302 Unique Features
17
2012 05+ Mustang(197)
Supplement, 2nd Printing
USA(fus)

ADVANCETRACSTABILITY ENHANCEMENT SYSTEM
AdvanceTracsport mode
The AdvanceTracsystem provides an available sport mode specially
calibrated for the Boss302 and its unique performance characteristics.
This can be selected utilizing the stability control off switch. While in
AdvanceTracsport mode, the selected steering option will be
overridden and placed in sport mode. See theDrivingsection of the
Owner’s Guidefor more information.
DRIVING YOUR VEHICLE THROUGH WATER
The Boss302 has aerodynamic devices attached to the underbody
designed to help control airflow for superior performance. Therefore, the
driver must be especially careful to avoid driving through deep or
standing water. If driving through deep or standing water is unavoidable,
proceed very slowly. Never drive through water that is higher than the
bottom of the wheel rims. Water may enter through the air intake due to
the vacuum generated in the engine. Damage caused by the intake of
water in the engine is not covered by the warranty. Refer toTi r e
informationfor more information.
GROUND CLEARANCE
Because of low vehicle ground clearance, use caution when
approaching curbs/curb stops from the front and rear as vehicle
damage will occur. Additionally, when crossing speed bumps or
driveway curbs, Ford recommends approaching at a very low
speed.
Driving your Boss302
19
2012 05+ Mustang(197)
Supplement, 2nd Printing
USA(fus)

BOSS302 V8 ENGINE
1. Battery
2. Engine oil dipstick
3. Brake fluid reservoir
4. Air filter assembly
5. Engine coolant reservoir
6. Engine oil filler cap
7. Windshield washer reservoir filler cap
8. Power distribution box
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Maintenance and Specifications
30
2012 05+ Mustang(197)
Supplement, 2nd Printing
USA(fus)