| First Generation | Second Generation | ||||||
| 4-Cylinder | 4-Cyl. Turbo | V-6 | 4-Cylinder | V-6 | |||
| Engine Code | 99C | 99L | 99U | 99A | 99B | ||
| Displacement (Liters) | 2.2 liter | 2.2 liter | 3.0 liter | 2.0 liter | 2.5 liter | ||
| Displacement (CID) | 133 CID | 133 CID | 182 CID | 122 CID | 152 CID | ||
| Displacement (CC) | 2189cc | 2189cc | 2971cc | 1991cc | 2496cc | ||
| Manufacturer | Mazda | Mazda | Ford | Mazda | Mazda | ||
| Engine Type | OHC | OHC | OHV | DOHC | DOHC | ||
| Valves/Per Cylinder | 12/3 | 12/3 | 12/2 | 16/4 | 24/4 | ||
| Aspiration | Normal | Turbocharged | Normal | Normal | Normal | ||
| Turbocharger Manufacturer | N/A | IHI | N/A | N/A | N/A | ||
| Turbocharger Pressure | N/A | 7.3psi 1 | N/A | N/A | N/A | ||
| Compression Ratio | 8.6:1 | 7.8:1 | 9.3:1 | 9.0:1 | 9.2:1 | ||
| Bore X Stroke | 3.39 x 3.70 | 3.39 x 3.70 | 3.50 x 3.14 | 3.27 x 3.62 | 3.33 x 2.92 | ||
| Engine Control | MECS | MECS | EEC-IV | MECS | MECS | ||
| Firing Order | 1-3-4-2 | 1-3-4-2 | 1-4-2-5-3-6 | 1-3-4-2 | 1-2-3-4-5-6 | ||
| Engine Block Material | Cast Iron | Cast Iron | Cast Iron | Cast Iron | Aluminum | ||
| Engine Weight | 458 lbs. 2 | 500 lbs. 3 | 409.4 lbs. | 390.2 lbs. | 474.0 lbs. | ||
| Cylinder Head Material | Aluminum | Aluminum | Cast Iron | Aluminum | Aluminum | ||
| Intake Manifold Material | Aluminum | Aluminum | Aluminum | Aluminum | Aluminum | ||
| Intake Manifold Weight | 8.2 lbs. | 8.2 lbs. | 9.2 lbs. | N/A | 13.2 lbs. | ||
| Exhaust Manifold Material | Cast Iron | Cast Iron | Cast Iron | Stainless Steel | Cast Iron | ||
| Exhaust Manifold Weight | 15.9 lbs. | 8.6 lbs. | 6.8/7.4 lbs. | N/A | 8.8 lbs. | ||
| Connecting Rod Material | Forged Steel | Forged Steel | Forged Steel | Carbon Steel | Carbon Steel | ||
| Crankshaft Material | Cast Iron | Cast Iron | NG Cast Iron 4 | NG Cast Iron 4 | Carbon Steel | ||
| Idle Speed | 750±25 | 750±25 | N/A | 700±50 | 650±50 | ||
| Ignition Timing | 6º±1º | 9º±1º | 10º | 10º±1º5 | 10º±1º | ||
| Oil Pressure @ 3000rpm | 43-57 psi | 43-57 psi | 40-60 psi | 57-71 psi | 49-71 psi | ||
| FUEL SYSTEM | |||||||
| Fuel System Type | EFI | EFI | EFI | EPFI | EPFI | ||
| Fuel System Manufacturer | Mazda | Mazda | Ford | Mitsubishi | Mitsubishi | ||
| Point Of Injection | Intake Port | Intake Port | Intake Port | Intake Port | Intake Port | ||
| Fuel Injector Flow Rate | 220 cc/min | 330 cc/min | 140 cc/min | ||||
| Fuel Pressure | 36.3 psi | 36.3 psi | 39.0 psi | 41.0 psi | 41.0 psi | ||
| Fuel Pump Type | Electric | Electric | Electric | Electric | Electric | ||
| Fuel Pump Flow Rate | 80 lph | 80 lph | 80 lph | 60 lph | 60 lph | ||
| Fuel Octane | 87 | 91+ | 87 | 87 | 91+ | ||
| Fuel Tank Capacity | 15.1 gal. | 15.1 gal. | 15.1 gal. | 15.5 gal. | 15.5 gal. | ||
| Fuel Tank Material | Steel | Steel | Steel | Plastic | Plastic | ||
| Fuel Tank Weight | 26.5 lbs. | 26.5 lbs. | 26.5 lbs. | 20.7 lbs. | 20.7 lbs. | ||
| ELECTRICAL SYSTEM | |||||||
| Electrical System Voltage | 12 volt | 12 volt | 12 volt | 12 volt | 12 volt | ||
| Battery Cold Crank | 505 amps | 505 amps | 540 amps | 582 amps | 582 amps | ||
| Battery Reserve Capacity | 86 min | 86 min | 100 min | 100 min | 100 min | ||
| Amps/Hrs. | 56 | 56 | 58 | 58 | 58 | ||
| Alternator Manufacturer | Mitsubishi | Mitsubishi | Mitsubishi | Mitsubishi | Mitsubishi | ||
| Alternator Volts/Amps | 12/70 6 | 12/70 6 | 12/90 | 12/80 | 12/90 | ||
| COOLING SYSTEM | |||||||
| Water Pump Flow Rate | 6.6 gpm | 6.6 gpm | 10.0 gpm | 6.6 gpm | 6.6 gpm | ||
| Thermostat Open | 187.7°F | 187.7°F | 197°F | 179.6°F | 179.6°F | ||
| Radiator Type | Vertical Flow | Vertical Flow | Vertical Flow | Cross Flow | Cross Flow | ||
| Radiator Material | Aluminum | Aluminum | Aluminum | Aluminum | Aluminum | ||