I have a boost gauge, but with my foot to the floor in the lower gears, the last thing I'm looking at is a boost gage.
Besides, what is Ford's definition of "over-boost"??? We already know the boost profile drops the pressure as the rpm rises, so I wouldn't know over-boost if I saw it...
Here is what the 2014 FIESTA ST Supplement says:
"ENGINE OVERBOOST
Your ST vehicle offers a period of
additional torque delivery referred to as
overboost or overtorque. This feature of
the engine calibration broadens the RPM
range of the peak torque curve. This gives
improved performance during maneuvers
such as passing and vehicle launch.
Note: The overboost feature controls a
variety of engine parameters to deliver
additional torque. Overboost is built into the
engine calibration on your ST vehicle and
no action is required by the driver to engage."
there is also this:
"ENGINE OVERSPEED
Note: Always wait until the engine is
properly warmed up before running high
engine speeds.
Your ST vehicle is equipped with an
overspeed feature to increase its
performance range. The standard
maximum engine speed of 6375 RPM is
indicated by a narrow redline on the
tachometer face. The redline becomes
thicker at the overspeed engine speed of
6500 RPM.
This feature allows three seconds of
overspeed above 6375 RPM. Once the
three second limit has been reached, the
electronically controlled rev limit ramps
down to 6375 RPM and holds there. Once
engine speed has dropped below 6175
RPM, the overspeed timer is reset and
three seconds of overspeed up to a
maximum of 6500 RPM is enabled.
Do not operate the engine at high RPM and
low load for sustained periods of time, as
damage may occur."