Wednesday, February 27, 2013

Atomic Power

(originally posted on Race Tech Magazine's blog - November 16, 2012)



For pure track day performance, the ideal blend is reduced weight and an increased amount of sensory data available to the driver. One would be hard pressed to find a package where Colin Chapman’s mantra of “simplify, then add lightness” is put into action more so than in an Ariel Atom. Rather than starting with a car where you must remove bits to achieve light weight and balance, the Atom starts from the ground up adding only the bits that are absolutely needed for performance and safety. It’s an intoxicating formula, to be sure.
I recently had an opportunity to drive an Atom on track, courtesy of TMI AutoTech located at Virginia International Raceway (Alton, VA, USA). It is a pretty good bet that no one in the US knows more about Atoms as TMI is the exclusive North American manufacturer of the car. In addition to building these cars from the ground up (including fabrication of the chassis), TMI also provides track day experiences and operates the VIR-based Spec Race Atom racing series (watch the pages of Race Tech for an upcoming feature).  



TMI’s Driving Experience begins with an introductory classroom session to ensure that all participants are familiar with the basics of driving on track and are aware of the marshal’s flags. After a brief overview of the day’s events, the group is led outside to the paddock to inspect their Atom. Upon meeting blue #05, my ride for the day, I was struck by the fact that there is nothing on this car that is not absolutely necessary (the only exception being the passenger seat, as I’d be solo today). From the suspension and brake system to the entirely visible Honda 2.4 liter engine (the same on found in the Civic Type R), it’s all there for your eyes to feast on. 

After becoming familiar with the car, it’s finally time to mount up and prepare to take the track. Step over the side tube frame and then lower yourself into the driver seat. From your new vantage point, you realize how much you can see. In addition to the instrument pod, steering wheel, fire bottle and gear shift, the rest of your view is filled with front wheels and suspension. Behind your head is a very reassuring roll hoop and the intake box for the Honda engine. That’s it…just you and all the bits you need to go fast.

The first session out behind the pace car is meant to familiarize drivers new to the Atom with the basics of the car’s dynamics. On this day, we were on VIR’s South Course, a short 1.65 miles of twisty bits and elevation change which will prove to offer both technical segments as well as short straights for a quick blast of speed.  The second session out starts behind the pace, but on each subsequent lap the next driver in line is given a point-by around the pace for open track. After a lunch debrief of the morning’s experiences, participants have two more sessions, this time without a pace car.

TMI offers extra value to its participants by placing experienced instructors around the track as observers. Between sessions and during lunch, these observers provide feedback on your braking zones and improvements to the driving line. Throughout the day, you find yourself realizing another tenth in your driving performance thanks to these sessions. 

So, what is the Atom like as a track car? The experience is like none other that I’ve driven. The scale of the car is more sports car than open wheeler, but it delivers the precision and sensory experience of a formula car. With a total weight of just over 1,300 pounds (612 kg), the 2.4L engine propels it to 60mph in 2.9 seconds.  Brakes are solid and predictable, though you do learn the importance of having the car properly balanced before going into a turn in order to prevent lockup. The 6-speed gearbox (also sourced from Honda) is smooth and precise with short throws on the shifter and a readily accessible power band. You quickly learn that the car has loads of torque which makes many downshifts on the tight circuit unnecessary.

The Ariel Atom is a very fun car on track and, in the hands of someone able to wring a few more tenths of performance from it than I was, it is a very well-balanced and fast racer. With the wave of the checker flag signaling the end of my day with #05, I was left with just one burning question….when can I do this again?





 

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