The VR-SC1, After 1 full year of R&D the all new C6 Snake charmer ram air induction kit is finally ready for the street. The snake charmer is a heavy development of the original C5 B2 unit. We used information gathered from 12 special B2 Race units that we constructed for racing only, these units featured many different internal aerodynamic packages and filter combinations, to maximize peak CFM and time to peak manifold pressure. We have emphasized too many customers and racing teams that its not just peak pressure but the time to peak manifold pressure that we look at, this occurs at shift recovery, down in the meat of the power curve. This helps for shooting off of corners, general driveability and overall peak performance, this shows up in the form of Torque& Lots of it. Like all VR units the snake charmer was not designed for the dyno (pulling air) it was designed for ramming as such the aero package and shape of the unit are designed around this. The philosophy is simple; design for the most efficient aero package possible at all speeds ranging from 10 mph- 180 mph. The snake charmer is over 108%-123% efficient depending on the filter used.
The filter for this unit was custom designed in house and produced by a subcontractor for Donaldson. It is a pleated unit that is washable and reusable, but that is where all similarities end, the filter features deeper pleats and more pleats per inch than other filters and the peaks and valleys have been opened to further increase flow capacity per square inch. The end result is a very compact high flow filter that will out flow K&Ns of similar dimension by over 30% while actually giving better air filtration, you simply have more filter area that is effective area not dead space. We used the latest in fluid dynamic software to check the flow path of the snake charmer; we say check because the snake charmer was originally designed by hand by company president Patrick Ledford. The flow is so well balanced into the mass airflow meter that at full speed 180 mph+ the airflow is within 1 mph across the entire circumference of the entrance leading into the air meter, the factory tube is not that good!
The unit is formed using two construction processes, the upper is roto molded to ensure a seamless internal aero package leading into the air meter. The second, the lower scoop is vacuum formed, this has been done to allow us to alter the scoop and its aero-packages to suit specific applications, giving us more flexibility and performance in street or racing use. This ensures maximum performance at all times.
So now the how much power will you get question- standing on a dyno without using any special programming you should expect 10-15hp from any cold air kit,but once moving the VR will put all the lost MAP pressure back into the plenum yielding another 17hp by 60mph 19-20by 90-100mph and the way we rate our kits is through a mile Your total power through a mile is about another 22hp plus the dyno hp of 10-15hp,so, on the low side, 32 Rear wheel hp, high side 37 Rear wheel hp. That's 39- 42hp at the fly wheel through a mile. This power shows up in the testing performance of the unit where we see gains of the following:
That is serious performance considering that is right out of the box. Custom tuning and additional performance parts can add additional performance gains. Consider headers and a tuner.