The 3.0-liter 24-valve Honda C30A engine was produced in Japan from 1990 to 2005 and was installed only on the Honda NSX sports model, including those produced under the Acura brand. There were two versions of this unit: for a manual transmission with 274 hp and for an automatic transmission with 256 hp.
The C-series engines: C27A, C30A, C32A, C35A.
Specifications
| Production years | 1990-2005 |
| Displacement, cc | 2977 |
| Fuel system | distributed injection |
| Power output, hp | 256 – 274 |
| Torque output, Nm | 284 |
| Cylinder block | aluminum V6 |
| Block head | aluminum 24v |
| Cylinder bore, mm | 90 |
| Piston stroke, mm | 78 |
| Compression ratio | 10.2 |
| Features | VVIS |
| Hydraulic lifters | no |
| Timing drive | belt |
| Phase regulator | VTEC |
| Turbocharging | no |
| Recommended engine oil | 5W-30 |
| Engine oil capacity, liter | 5.0 |
| Fuel type | petrol |
| Euro standards | EURO 2/3 |
| Fuel consumption, L/100 km (for Honda NSX 1995) — city — highway — combined |
17.9 9.1 12.4 |
| Engine lifespan, km | ~250 000 |
| Weight, kg | 195 |
The engine was installed on:
- Acura NSX 1 (NA) in 1990 – 2005;
- Honda NSX 1 (NA) in 1990 – 2005.
Disadvantages of the Honda C30A engine
- The main problem of the engine is oil consumption, it can appear up to 100,000 km.
- It is very important to monitor the lubrication level; even a slight decrease in it is dangerous.
- Sometimes you can get away with just replacing the pushers, but often the camshaft is changed.
- The timing belt is renewed every 90,000 miles, and if it breaks, it always bends the valves.
- The weak points of the engine include a short-lived catalyst and ignition coils.
