|The GTO/ Holden air induction system (code name VR-SD and SDR)
This system has been a long time coming for the GTO/Holden owners.
They set their design target to support 800hp/ 500 cu inch and 7000+RPM, all while keeping the system easy to install and making it a “TRUE” cold air system that breathes better when the hood is “CLOSED” vs. Open on a dyno.
VaraRam accomplished this goal through intensive on road and track testing which revealed the shortcomings of every other aftermarket system they tested from US and Australian manufacturers.
They “ALL” suffered from heat soak- the Holden /GTO has a sealed engine compartment. This allows very little air in or out, so these cars run HOT naturally, let alone if the motor is built or supercharged! (Creating more heat, remember, horsepower is heat!)
They tested kits that used many configurations, some went over the radiator some to the fender and others sealed to the hood, ALL of them heat soaked the mass airflow meter and air box assembly.
This in turn caused the ECU to pull timing out of the motor and this also forces the tuner to detune for the street or track VS the dyno with the hood open and a fan blowing.
THE VR remedy- At VR they only design their products for the “REAL WORLD” not a static test, because U don’t win races standing still on a Dyno!