The 2.0-liter Honda G20A gasoline engine was produced in Japan from 1989 to 1998 and was installed on a number of large models of the concern, such as Ascot, Rafaga, Saber, Inspire and Vigor. This power unit, according to a generally accepted legend, was created on the basis of a Formula 1 car engine.
G-series family: G20A, G25A.
Specifications
| Production years | 1989-1998 |
| Displacement, cc | 1996 |
| Fuel system | injector |
| Power output, hp | 155 – 160 |
| Torque output, Nm | 185 |
| Cylinder block | aluminum R5 |
| Block head | aluminum 20v |
| Cylinder bore, mm | 82 |
| Piston stroke, mm | 75.6 |
| Compression ratio | 9.7 |
| Features | SOHC |
| Hydraulic lifters | no |
| Timing drive | belt |
| Phase regulator | no |
| Turbocharging | no |
| Recommended engine oil | 5W-30 |
| Engine oil capacity, liter | 4.3 |
| Fuel type | petrol |
| Euro standards | EURO 1/2 |
| Fuel consumption, L/100 km (for Honda Ascot 1995) — city — highway — combined |
11.5 6.9 8.8 |
| Engine lifespan, km | ~350 000 |
| Weight, kg | 165 |
The engine was installed on:
- Acura TL 1 (UA) in 1995 – 1998;
- Honda Ascot 2 (CE) in 1993 – 1997;
- Honda Inspire 1 (CC) in 1989 – 1995, Inspire 2 (UA) in 1995 – 1998;
- Honda Rafaga 1 (CE) in 1993 – 1997;
- Honda Saber 1 (UA) in 1995 – 1998;
- Honda Vigor 3 (CB) in 1989 – 1995.
Disadvantages of the Honda G20A engine
- This engine is considered reliable, but there are problems with service and spare parts;
- On specialized forums, owners complain about frequent oil leaks from gaskets and seals;
- The timing belt is designed for approximately 100,000 km, and when it breaks, the valve always bends;
- Very often idle speed floats, there are many reasons, start with the throttle and idle valve;
- When the engine is unstable, a simple valve adjustment often helps.
Frequently asked questions about the Honda G20A
How much power does the Honda G20A make?
The Honda G20A develops 155 - 160 hp and 185 Nm of torque.
How much oil does the Honda G20A take and which one?
Engine oil capacity: 4.3 liters. Recommended oil: 5W-30.
Does the Honda G20A have a timing belt or chain?
The Honda G20A uses a timing belt.
Is the Honda G20A turbocharged?
No, the Honda G20A is naturally aspirated.
Does the Honda G20A need valve clearance adjustment?
Yes, there are no hydraulic lifters, so the valve clearances have to be checked and adjusted periodically.
How long does the Honda G20A last?
The typical lifespan of the Honda G20A is ~350 000 km with proper maintenance.
What is the fuel consumption of the Honda G20A?
Honda Ascot 1995: city 11.5, highway 6.9, combined 8.8 L/100 km.
What cars was the Honda G20A installed on?
Acura TL 1 (UA) in 1995 - 1998; Honda Ascot 2 (CE) in 1993 - 1997; Honda Inspire 1 (CC) in 1989 - 1995, Inspire 2 (UA) in 1995 - 1998; Honda Rafaga 1 (CE) in 1993 - 1997; Honda Saber 1 (UA) in 1995 - 1998; Honda Vigor 3 (CB) in 1989 - 1995.
What are the common problems of the Honda G20A?
This engine is considered reliable, but there are problems with service and spare parts. On specialized forums, owners complain about frequent oil leaks from gaskets and seals. All known problems.
What engines are related to the Honda G20A?
G-series family: G25A.
