2011 Ford Mustang Shelby GT500
Sterling Gray / Race
550 HP 6 Speed
Vin: 125477 - 333rd 2011
Shelby GT500 Convertible built.
Click on any picture to
The attempt here is to
document the differences between the 2011 GT500's and previous
I'm only going on my own knowledge here so bear with me and
correct any mistakes that you see. Where you see
reference to SVTPP, that stands for the optional SVT
Performance Package. Said to include: 3.73 Limited
Slip Rear Axle, 19" Painted Forged Aluminum Front Wheels,
20" Painted Forged Aluminum Rear Wheels, High Performance
Front and Rear Springs, Specialized Rear Shocks, an Eye
Catching Rear Spoiler with a distinctive Gurney Flap, a
custom Gear Shift Knob and Unique Exterior Stripes.
MECHANICAL & SUSPENSION
2011 saw the start of the
electric steering assist in place of the hydraulic system.
This is a picture looking through the passenger side
wheelwell. Notice the blue markings indicating where
all of the bolts were torqued and as well where the rod ends
were aligned. This indicates to me that Ford is
wanting to keep an eye on this new unit.
The SVTPP Front Sway Bar.
Also notice how the blue alignment marks on my steering arm
not in alignment. Don't know if this means that they
did an additional check afterwards or if it has moved in the
first 500 miles of driving.
Front SVT Strut.
This is a plastic panel
under the engine that must be removed to drain the oil.
I would guess that it is there for aerodynamics, but
probably more as a heat extractor for the steering pump.
You can see the slots that will pull air from under the
Rear SVT Shocks.
The notorious rear axle
breather has been relocated to the top of the aluminum rear
end cover. This was a problem if you ever tracked the
car. It was never good to get goo under your tires,
much less your own. It is my understanding that the
GT500KR's from '08 had a catch can to try to alleviate this
The inside of the rear end
cover. Baffle over breather tube. You can also
see the groove in the surface side of the cover. Looks
like Ford may be getting ready to use a membrane type gasket
in the future.
Anti-noise weights bolted
to the rear axle mount. Apparently these have been
added to the cars with 3.73 gears for some time now.
New style muffler
attachment at rear.
H-Pipe with 2.75" vs 2.50"
exhaust pipes. New style clamps with alignment tabs.
Sideways picture of the
Muffler part number.
Rear SVT Shock.
Rear SVT Springs.
Definately not progressive rate.
SMR tag on the rear
This shielding on the
wiring bundle as it passes past the engine and transmission
has additional heat shielding.
The next several pictures
illustrate the additional bracing afforded to the
convertibles which attribute to the additional structural
This shot shows the new
beefier lower control arms. These are apparently the
fix to reduce rear wheel hop under hard acceleration.
The axle tubes are painted
instead of leaving them raw to rust.
Sound deadener felt in the
rear wheel well.
These plastic flats
positioned at the rear most portion of the rocker panels are
new to the 2011 and I would suppose they are designed to
deflect water and grime away from the brake rotors.
And here is the 'felt'
under the hood on the firewall.
Unique SVTPP Shift Knob.
I think the only differences is deleting of the stripes.
Relocation of the
windshield squirters to under the lip of the hood.
This came about with the new styling of the hood on the 2010
New style headrests for the
rear seat. They now fold down and are separate pieces
from the seat back.
Here are a couple of shots
of the SVTPP rear wing and Gurney Flap. The Gurney was
noted to be available on the 2010 as well.
The Gurney Flap (or
wickerbill) is a small flat tab projecting from
of a wing. Typically it is set at a
to the pressure side surface of the
and projects 1% to 2% of the wing
This trailing edge device can improve the
performance of a simple airfoil to nearly the same
level as a complex high-performance design.
The device operates by
increasing pressure on the pressure side, decreasing
pressure on the suction side, and helping the
boundary layer flow
stay attached all the way to the trailing edge on
the suction side of the airfoil. Common applications
and aircraft where high
lift is essential,
Dan Gurney, was a
right-angle piece of sheet metal, rigidly fixed to
the top trailing edge of the rear wing on his
open wheel racing
cars of the early 1970s. The device was installed
pointing upwards to increase
by the wing, improving
traction. He field
tested it and found it allowed a car to negotiate
turns at higher speed, while also achieving higher
speed in the straight sections of the track.
A few pictures showing the
unique stripes for the SVTPP option. This car is
Sterling Gray Metallic with Race Red Stripes and Black
New for 2011 are the SVTPP
20" Rear Wheels and 19" Fronts. Great color on the
wheels. 9.5" wide at both ends.
Tread pattern on the G2
Supercar Tires. It isn't specified, but I don't think
the non SVTPP cars get these.
Blue Value Covers and a
Satin finish on the 2011 blower. Claimed HP increases
to 550 crank reading. Said to be attributed to the
2.75" free flowing exhaust. The electric steering will
also add to effective Rear Wheel horsepower as the engine no
longer has to run a hydraulic pump. I haven't put this
one on the dyno yet to compare it to the 2010 models, but
one test I read noted approximately a 20 hp increase at the
rear wheels over the 2010.
Step on the brake and tap
the Traction Control button twice and you get this mode on
the Advancetrac system.
If you order the
"Electronics Package" you get the SYNC system and the radio
is now capable of receiving the HD stations.
Essentially, they are stations within a station. The
difference in clarity and volume is pretty amazing.
The Shaker 1000 system is not available in the GT500 with
The following pictures are
for illustration purposes of how the car was delivered to
the dealer. I have heard of cars that had covers over
the wheels, but mine didn't.
Here is the new rear view
mirror with the 'spot' mirror incorporated.