Matt Bejnarowicz is
the Dodge Viper SRT10 ACR Lead Development Engineer
It seems like the buzz is everywhere these days about our new 600
hp, street-legal tour de force, the 2008 Dodge Viper SRT10 ACR. In
this case, I’d say believe the hype. To give you some kind of
idea how incredibly powerful the existing Viper SRT10 is, consider
the kind of competition we pit it against.
Every couple of years at Luke Air Force Base in Arizona, they host
a benefit air show for the families of overseas servicemen and
women. One of the highlights of this event features a drag race
between two incredibly fast machines, a Dodge Viper SRT10 …
and a military F-16.
The fact that there’s any contest at all should give the
reader pause. An F-16 is powered by enough thrust to achieve an air
speed in the Mach 2 range. Even on the tarmac, it’s nothing
to scoff at. But hey, we’re always up for a challenge!
We started the ACR program over a year ago with similar military
secrecy. Code named, "Project EM50," we had one guiding
focus—to make a street-legal Viper as fast as possible on the
track. Our goal was to push the envelope of performance in every
critical area required of a modern race car: aerodynamics,
suspension, brakes, tires and weight reduction.
The project was kept so quiet that engineers in our same office had
no knowledge the car was under development. Wind tunnel testing was
done during midnight hours, and track test cars were camouflaged in
racing trim with numbers and decals.
The first time I drove the test "mule," I knew we had something
special on our hands. Even with an engine from the
previous-generation Viper SRT10, the prototype had so much potency
on the track (courtesy of a tremendous rear-wing spoiler and
dynamic dual-fanged splitter up front) that it could keep up with
the latest model on the track—and blaze past it through
the turns.
Outside the car, the aerodynamic elements (cutting through the air)
left behind sounds similar to a jet aircraft, further boosting the
team’s excitement.
I’ve now been working with this car at many tracks to
fine-tune everything, and I can easily say it’s the most
rewarding car I’ve ever driven—and my background is in
motorsports!
Ultimately, you’re looking at 1,000 pounds of downforce at
150 mph, which is unprecedented in many ways. Many GT race cars do
not have this level of aerodynamic downforce. So for a street car,
I think its safe to say Dodge has entered new territory for
performance.
I’ve been behind the wheel of a fair amount of high-powered
cars, and the downforce this car generates is truly incredible.
It’s as if the faster you go through a corner, the more
stable it grips the road—it’s almost eerie. Every time
I take the Viper SRT10 ACR out on the track, it’s a
revelation.

It has so much grip, especially at high speeds, that you could
practically drink a cup of coffee and drive it with the other hand
at the same time—not that I’d recommend it.
The combined aerodynamics, suspension, brakes and tires complement
each other perfectly. All of this performance comes at a price that
will pleasantly surprise any sports racing enthusiast. In fact, if
you look at the amount of specialized content the ACR package comes
with, it’s a pretty fantastic deal for club racers.
So what we’re left with is the ultimate street-legal racer
for the weekend warriors out there, those select Viper owners who
want to drive to the track and nail the best times for the day. If
you want to run all day, have some fun, make some great lap times
and then drive your Viper home, this car connects the dots.
For more information on the 2008 Dodge Viper SRT10 ACR,
click
here. Track Rats be warned—you’re in for a serious
case of automotive envy.
Posts
Most Capable Viper... EVER
by Matt Bejnarowicz
December 11, 2007 7:00 AM
3 Comments
Greg Dec 11, 2007, 1:09 PM
Great article! Where do I sign up for a ride...? ;-)
OrecaViper Jan 22, 2008, 2:58 PM
thanks for the article Matt. I hope to see Vipers in ALMS this year.
F5000Racer Feb 2, 2008, 8:56 PM
Matt,
How did the functional objectives for the ACR differ from the
street SRT10? Nice job!
Steve
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