Welcome to teirney.NET - Honda Civic SiR. This section contains details about my 1990 EF9 JDM (Japanese Domestic Market) Honda Civic SiR. This Honda Civic belongs to the 4th generation (also known as the "Ground" generation) of Civics produced by Honda between 1987 and 1991.
Background - Specifications - Modifications
This generation of the Honda Civic was the first to receive the legendary SiR badge and the much sought after B16A DOHC VTEC engine. Check out the B16A Reference or Specifications to see why this vehicle is so good - 160ps stock standard from the 1600cc engine all packed in a car that weighs less than a tonne.
With an equally impressive handling package, the Honda Civic SiR is a nimble and quick vehicle. Included in the handling package is independent double wishbone suspension all round, disc brakes all round and both front and rear stabilizer (torsion) bars.
| Model | Civic SiR |
| Chassis Code | EF9 |
| Coefficient of Drag (Cd) | 0.33 |
| Dimensions | |
|---|---|
| Length | 3995mm |
| Width | 1680mm |
| Height | 1335mm |
| Wheelbase | 2500mm |
| Clearance | 150mm |
| Weights | |
| Curb Weight | 990kg |
| Engine Weight (wet) | 140kg |
| Engine | |
| Code | B16A |
| Type | Water-cooled 4 stroke |
| Cylinder Arrangement | Inline 4 cylinder, transverse |
| Bore x Stroke | 81.0 x 77.4mm |
| Displacement | 1595cc |
| Compression Ratio | 10.2 : 1 |
| Valve Train | 4 valves per cylinder, belt driven double overhead cam (DOHC), variable valve timing (VTEC) |
| Peak Power | 160ps @ 7600rpm |
| Peak Torque | 15.5kgm @ 7000rpm |
| Specific Output | 100ps/l |
| Redline | 8000rpm |
| Lubrication System | Forced and wet sump |
| Fuel Requirements | Unleaded gasoline with 95 RON or higher |
| Spark Plug | NGK BKR6E-N-11 (1.1mm gap) |
| Transmission | |
| Transmission Code | Y1 |
| Transmission Type | 5-speed forward synchromeshed, 1-speed reverse |
| Clutch | Single plate dry, diaphragm spring |
| Clutch Facing Area | 203cm2 |
| Primary Reduction | 1.000 |
| 1st | 3.250 |
| 2nd | 2.052 |
| 3rd | 1.416 |
| 4th | 1.103 |
| 5th | 0.870 |
| Reverse | 3.000 |
| Final Drive | Single helical gear, 4.133 |
| Steering System | |
| Type | Rack and pinion |
| Overall Ratio | 21.6 (19.6 - 22.3) : 1 |
| Turns, lock-to-lock | 4.1 |
| Steering Wheel Diameter | 372mm |
| Suspension System | |
| Type (Front/Rear) | Independent with double wishbone, coil springs with stablizer |
| Shock Absorber (Front/Rear) | Telescopic, nitrogen gas-filled |
| Brake System | |
| Type (Front) | Power assisted, self-adjusting ventilated discs |
| Type (Rear) | Power assisted, self-adjusting discs |
| Lining Surface Area (Front) | 50mm2 |
| Lining Surface Area (Rear) | 21mm2 |
| Effective Disc Diameter (Front) | 214mm |
| Effective Disc Diameter (Rear) | 208mm |
| Parking Brake | Mechanically actuated, rear two-wheel disc brakes |
| Tires | |
| Front/Rear | 195/60R14 85V |
The list of modifications to date are:
The latest B16A Dyno Run showed a peak power output of 91kW (127HP) @ 169kph (~8000rpm) at the wheels.
