Driving a car with turbocharger is really fun but it has some turbo lag below certain RPM and the fuel consumption sometimes a bit higher. Using a new turbo concept such as VGT or VNT will help you to achieve best power and torque and at the same time better fuel consumption with proper torque curve.
This VGT system is more powerful than any other turbo system available. Picture above shows a turbocharger unit from a pickup truck turbo diesel.
TURBO VNT VGT VARIABLE GEOMETRY – MORE EFFICIENT TURBOCHARGER SYSTEM