通用发动机ECOTEC 2.0T解析（外国朋友做的！！！）

Chief.engineer

Z20NET Spec Sheet



Engine designation:


Vauxhall:
Z20NET (Z = Euro4 emissions standard, 20 = 2.0 litre, N = compression ratio 9.0-9.5:1, E = injection, T = turbocharged)
Saab:
B207L


Engine installation
Front, transverse in front of axle, 10° backward inclined

Cooling system
Liquid, sealed circuit

Cylinders, number
4

No 1 cylinder location
At timing chain end

Bore (mm)
86

Stroke (mm)
86

Displacement (cc)
1998

Compression ratio
9.5 : 1

Engine, type
In line; 5 main bearings

Cylinder block/ head material
Aluminium/ aluminium

Camshaft(s), location
2 overhead (DOHC), driven by chain

Valve train
Roller rocker with hydraulic bucket tappets

Valve, arrangement
v; 4 per cylinder

Valve, adjustment
Automatic – hydraulic

Fuel system
Sequential multi point fuel injection

Ignition system
Electronic ignition map, ignition coil direct to spark plug

Fuel pump
Electric, in tank

Emission control system
3 - way cat. conv. with 2 oxygen sensors

Output
129 kW / 175 BHP at 5500 RPM

Specific power (kW/l; hp/l)
64.6; 87.6

Max. torque (Nm at 1/min)
265 kW / 195 lb ft at 2500 RPM

Specific torque (Nm/litre)
132.6

Mean effective pressure at max. power/ max. torque (Nm/litre)
1408.7/ 1667.5

Average piston speed (m/s)
15.8

Number of camshaft bearings
6 per camshaft


Lubrication:

Engine oil, capacity (l)
6

Difference between Min and Max markings on dipstick
1 litre

Oil filter type
Disposable paper cartridge, top mounted

Oil filter nut size
32mm

Oil filter nut torque setting
25 Nm / 18 lb ft

Sump drain plug torque setting
25 Nm / 18 lb ft

Minimum oil pressure at 80 C:
Crankcase
2.0 bar at 1000 RPM

Cylinder head
0.8 bar at 1000 RPM

Oil pressure warning switch activates at
0.3 bar

Oil cooler thermostat opens at
107 C (No thermostat fitted from 2008 onwards - oil cooling at all temperatures)


Coolant capacity (l)
7.5

Battery 12V, capacity (Ah)
66

Alternator 14.2V, capacity (W)
1704

Max. service interval
20,000 miles or 2 years

Emission compliance
Euro 4

OEM spark plug brand/type
NGK PFR6T-10G

Electrode gap
0.9mm to 1.0mm

Spark plug torque setting
28 Nm / 21 lb ft

Firing order
1-3-4-2.

Chief.engineer

Curves

123QAZ

GM的这个发动机真的不是一般的牛，百年通用的复兴之作

shawclee

这是典型的刷分！愤怒中。。。。。。。。

都灵战驴

这个参数不是早就满网络跑了。。。