INCREASED HORSEPOWER AND TORQUE FROM COLDER INTAKE AIR TEMPERATURES & GREATER AIRBOX PRESSURE
REDUCTION IN INTAKE AIR TEMPERATURES IN EXCESS OF 25F DEGREES!
INCREASED INTAKE SOUND IN COCKPIT BY 20db
The Porsche Cayman’s mid-engine platform features the engine in the preferred location for handling, directly behind the driver; this same advantage also creates a handicap in a motorsport environment, leaving little opportunity to exhaust radiant heat from the Cayman’s engine bay. Front engine cars benefit from fresh air to the nose and even the venerable rear engine 911 runs cooler thanks to larger amounts of fresh air running down its 'back' to its rear mounted engine. Among the only three available orientations, the mid-engine design runs the hottest under the collar, so to speak!
An ancillary disadvantage of the mid-engine design is that procurement of the air going to the engine can best be achieved via two side ‘gills’ behind the driver and passenger. (Think back to the styling cues of the Pontiac Fiero or any of the Ferrari 348s, 355s, Mondials and Testarossas!) The car is exposed to digesting sub par air, some of which can be hot brake dust coming from the front axles as well as anything else being kicked or blown towards the car’s side aero channeling that is used to create an air path to the engine. This air must then snake through the car’s body and into the engine bay where the temperature is now substantially hotter than the temperature outside by over 25F degrees!
The carbon fiber window ducts were created to be retrofitted to the factory Porsche window frames to feed the engine with colder, fresher air. Wind tunnel data further reiterated the value of the approach when it showed that the pressure at the window was far greater than the air pressure at the "side gill." NOTE: Each car's window frames are color and finish matched to the car's VIN number so supplying a one look fits all window frame was not an option.
By revising the location from which we feed the engine, we can reduce the variance to that of the ambient air to be only a few degrees hotter and this reduction of an overall 25 degrees in intake air temperature equates to a gain of over 25rwhp on our Dynojet chassis dyno. The increased pressure gained by scavenging air from the quarter window vs. the behind the driver further enhances the "ram air effect" at speed and creates even more horsepower.
$6,999.00 USD (excludes taxes, S&H)
Available in red, white, green, black, dark blue, dark grey, ivory, light grey, orange.
Yellow and carbon fiber hydro dip! (+$500)