2 Fuel and ignition system 911 Carrera/911 Carrera 4 · General The following technical aspec

911 Fuel and ignition system 2 2 Fuel and ignition system 911 Carrera/911 Carrera 4 General The following technical aspects have been achieved: Based on the well known 3.4 l engine, with the displacement increased to 3.6 l for ? Displacement increase from 3.4 l to 3.6 model year 2002. l by increasing stroke from 78 mm to This displacement increase and the vari- 82.8 mm able valve timing VarioCam Plus, which now ? The fuel system has no return line from has additional valve stroke control (see 911 engine to fuel tank Turbo 996), the engine power output and ? Incorporation of Motronic ME 7.8 torque could be further increased. ? VarioCam Plus with variable camshaft The Motronic engine management system timing and valve stroke control ME 7.8 controls the mixture preparation ? Silencer with sound-optimised interior electronically. ? New look tail pipes Development aims ? Increasing the nominal output from 221 to 235 kW (300 to 320 hp) at 6800 rpm ? Increasing max. torque from 350 to 370 Nm at 4250 rpm ? Lower fuel consumption ? Acoustic optimisation of exhaust sys- tem ? Ensuring compliance of all legal emis- sion requirements. 0_05_02 2002 Service Information 2 - 1