2007 Boxster – Boxster S

juliol 30, 2006 admin

2007 Porsche Boxster, Boxster S get more power

Beginning August 1st, the 2007 Porsche Boxster and Boxster S will be given more power and torque. The 2.7-liter Boxster engine now develops an additional 5 bhp, bringing the total to 245 bhp (180 kW). Torque has increased to 273 Nm, available from 4,600 rpm. Fuel consumption is now 9.3 liters per 100 kilometers, a reduction of 0.3 l/100 km. The Boxster accelerates to 100 km/h in 6.1 seconds and has a top speed of 258 km/h. With the optional six-speed gearbox, 260 km/h can be achieved. The Boxster S engine, which has been increased in size from 3.2 to 3.4 liters, develops 295 bhp (217 kW) at 6,250 rpm – 15 bhp more than its predecessor – and 340 Nm of torque. The Boxster S sprints from 0 to 100 km/h in just 5.4 seconds – a tenth of a second quicker than the previous model. This open sports car’s top speed has gone up by 4 km/h to 272 km/h. Its average fuel consumption is 10.6 liters per 100 kilometers.

Both flat-six engines are now equipped with VarioCam Plus valve control, with variable valve timing (VarioCam) and changeover valve lift (Plus). Inlet camshaft timing is adjusted by a vane-type actuator with a range of 40 degrees. The valve lift changeover mechanism uses two-position bucket-type tappets on the inlet side, actuated by an electrohydraulic valve.

The bucket-type tappets consist of one tappet inside another; the two tappets can be locked together hydraulically by a pin. Thanks to this technical device, the Boxster and Boxster S engines have a characteristic that combines strong pulling power with high peak output at low fuel consumption.

The Boxster and Boxster S can be supplied with the revised Tiptronic S transmission, which has new hydraulics and electronics as well as variable shift programs. When combined with the Sport Chrono Package, the sporty characteristics of both these mid-engine roadsters can be experienced even more intensely: up- and downshifts are made only at engine speeds above 3000 rpm; downshifts for engine braking are subject to less delay and take place at higher engine speeds. In the manual-shift mode, up-shifts are not made automatically when the engine reaches its maximum rev limit.