Table 1.

Engine Specifications

manufacturer	General Motors	Ford
model year	2002	2008
number of cylinders	4	8
displacement (L)	1.7	6.4
compression ratio	16:1	16.7:1
bore (mm)	79	98
stroke (mm)	86	105
connecting rod length (mm)	133.5	176
piston geometry	bowl-in	bowl-in
no. of valves per cylinder	4	4
fuel injection system	direct-injection common rail	direct-injection, high pressure common rail, piezoelectric actuation
injector location	centrally located	centrally located
injector nozzle number ofholes	6	6
exhaust gas recirculation (EGR)	EGR cooler, flow controlled with poppet-style control valve	dual EGR coolers with EGR exhaust catalysts
turbocharger	variable geometry turbocharger	two compound turbochargers, smaller turbo uses variable geometry turbine
horsepower	100 bhp at 4400 rpm	350 bhp at 3000 rpm