you
zl1 models equipped with a manual
transmission feature launch control that
will consistently launch the car in a
straight line
launch control manages tire slip while
launching your vehicle it's intended for
use on a closed course and not on public
roads the goal of the system is to
provide consistent 0 to 60 and
quarter-mile times to activate launch
control first be sure to enter PTM by
pressing the traction control button
twice located in the center console area
mode one through four can be used with a
production zl1 tires on dry pavement
mode four will yield the most consistent
results because active handling is
disabled mode five is tuned for use on a
recently traction prep surface with a
vehicle at idle make sure the steering
wheel is pointing straight your clutch
is pressed and you're in first gear then
go to wide open throttle your zl1 will
choose the correct launch rpm after the
engine speed has stabilized while
holding the throttle to the floor
release the clutch do not sidestep the
clutch or release it too quickly this
causes undue stress on the drive line
and does not give the best acceleration
times releasing the clutch slightly more
quickly than a normal drive away will
result in the best and most consistent
times if you release the clutch before
the engine speed has stabilized the lock
pencil algorithm
consistent results zl1 models equipped
with manual transmission also
incorporate a no lift up shift algorithm
this algorithm is active during up
shifts where the throttle is held at
100% to utilize no lift up shifts leave
the throttle at 100% and quickly press
and release the clutch while selecting
the next gear
you should feel no lag while the engine
builds boost in the next gear however if
you take too long with the shift or
engage the clutch at too low an engine
speed you will feel some lag as the
bypass valve closes and the engine
builds boost again for more details on
launch control and more be sure to refer
to your zl1 owner's manual