SRT VIPER TA
Gilles. “That includes owners who do track
days, autocross and drag racing. It’s that
20 percent the TA was built for.”
Over the years, there have been many
special edition or track-oriented Viper
packages; the TA pulls it off without
sacrificing comfort or going over the top
on styling. In fact, much of what sets the
TA apart from other Vipers is unseen.
With 640hp and 600lb.ft. of torque from
the 8.4-liter Viper motor, the SRT team
found little reason to delve into the
engine. Instead, emphasis was put on
handling, braking and stability.
The TA shares the two-mode driver-selectable Bilstein Damp Tronic shocks
that are fitted to the GTS, but the TA has
unique shock valving to match its stiffer
springs for track driving. The swaybars
are also increased in rigidity to combat
body roll. In addition, a much more
aggressive alignment setting is built in,
helping to optimize the massive Pirelli
P Zero Corsa tires.
“We have the largest production car
contact patch,” observes Gilles, and that’s
not difficult to believe: the TA wears
295/30ZR18 tires wrapped around a
matte black 18x10.5-inch Sidewinder II
wheel in front, with 355/30ZR19 tires
mounted on a 19x13-inch rim out back.
Improving brake performance was a
challenge for the SRT team, as the
Viper’s standard 14in. diameter front
brakes were seemingly using every bit
of available space inside the Sidewinder
wheels. Ruedisueli and his team took
another approach, decreasing the hat
size of the two-piece Brembo rotor,
which offered a larger swept area for the
TA-specific Brembo caliper to clamp.
“On any given weekend,
you’ll find SRT staff at a
race track, an auto cross,
a car show or a cruise-in”
All Vipers have a highly effective crossbrace under the hood (BELOW LEFT), but to enhance the TA’s
characteristics when on track duty (BELOW RIGHT), its crossbrace is made from carbon fiber rather than
aluminum to compensate for the weight of the beefier swaybars. On “regular” SRT and GTS Vipers, swaybars
are hollow, but the TA’s are solid to add roll stiffness – 35 percent in the front, 30 percent at the back.
(BOTTOM) Wheel camber has also been altered to help preserve the Pirelli P Zero Corsas in hard track use.
BEEFING UP THE SNAKE