| Category | Formula Atlantic |
|---|---|
| Constructor | Swift Engineering |
| Predecessor | Swift DB3 |
| Successor | Swift DB5 |
| Technical specifications | |
| Chassis | Carbon fiber monocoque |
| Suspension | Steel wishbones, push-rod-actuated coil springs over shock absorbers |
| Engine | Toyota 4A-GE 1,600 cc (97.6 cu in) L4[1] mid-engined |
| Transmission | Staffs 5-speed manual |
| Power | 240 hp (180 kW) |
| Weight | ~ 1,058 lb (479.9 kg) |
| Fuel | VP Racing Fuels 102-RON Unleaded gasoline |
| Tyres | Yokohama |
| Competition history | |
| Debut | 1987 |
The Swift DB4 is an open-wheel formula racing car chassis, designed, developed and built by American Company Swift Engineering, for the Formula Atlantic spec-series, between 1987 and 1997. It won the championship five times, with four championships won four consecutive years in a row (1988, 1990–1993). It was powered by naturally aspirated 1.6 L (98 cu in) Toyota 4A-GE four-cylinder engine, producing about 240 hp (180 kW), which drove the rear wheels through a standard 5-speed manual transmission.[2][3][4]