WHAT’S IN THE NUMBERS?

ANDREW’S Patrol is fitted with a Harrop 2.3L FDFI2300 Supercharger Kit, boosting at 7psi. The Harrop FDFI2300 kit ($10,989) is a twin rotor supercharger with Eaton’s Roots-type TVS internals. In force-fed systems there are two figures that matter: how much air is going in, and how hard it’s being pushed. Two large rotors force 2.3 litres of air into the engine at 7.3 psi, or half of one atmosphere of pressure, for every rotation of the supercharger. More air going in equals more power. Simple stuff.