The Speedster sports car and OPC versions of well-known models like the Astra and Zafira were equipped with the 2.0-liter turbo Opel Z20LET or L70, which was manufactured in Germany between 2000 and 2005. The motor was split into three versions following the 2005 update: Z20LEL, Z20LER, and Z20LEH.
The engines Z22SE, Z22YH, Z24SED, Z28NET, and Z32SE are also members of the Z family.
The engine was mounted on:
- Opel Astra G (T98) in 2000 – 2005;
- Opel Speedster A (E01) in 2003 – 2005;
- Opel Zafira A (T98) in 2001 – 2004.
Specifications
| Production years | 2000-2005 |
| Displacement, cc | 1998 |
| Fuel system | distributed injection |
| Power output, hp | 190 – 200 |
| Torque output, Nm | 250 |
| Cylinder block | cast iron R4 |
| Block head | aluminum 16v |
| Cylinder bore, mm | 86 |
| Piston stroke, mm | 86 |
| Compression ratio | 8.8 |
| Features | no |
| Hydraulic lifters | yes |
| Timing drive | belt |
| Phase regulator | no |
| Turbocharging | yes |
| Recommended engine oil | 5W-30 |
| Engine oil capacity, liter | 4.25 |
| Fuel type | petrol |
| Euro standards | EURO 4 |
| Fuel consumption, L/100 km (for Opel Astra OPC 2004) — city — highway — combined |
12.5 6.8 8.9 |
| Engine lifespan, km | ~250 000 |
| Weight, kg | 160 |
Disadvantages of the Z20LET engine
The exhaust manifold frequently cracks here, but it can typically be welded; oil seals are thought to be the engine’s weak point and frequently need to be replaced;
The valves bend 100% when the timing belt breaks, which is intended to last 60,000 kilometers. Other minor issues include frequent oil leaks from beneath the valve cover.