# Formula 1000

Formula 1000 (F1000) is a class of open wheel formula racing with professional and amateur series worldwide. Formula 1000 gets its name from the 1000 cc (1.0 L) super-bike engine used to power a single seat, open wheel race car with fully adjustable wings and suspension.
Currently in the United States, F1000 runs in SCCA under the FA (Formula Atlantic) class (it was previously run as the FB class prior to 2020) or under SCCA Pro Racing with the North American Formula 1000 Championship.
Formula 1000 cars are priced between $40,000 to $75,000. SCCA rules also allow conversion of an existing Formula car (e.g., FC) to meet F1000 requirements.
Formula 1000 race cars can reach speeds higher than 274 km/h (170 mph) and experience as much as 3 Gs of downforce on brakes and corners.
There is a similar but distinct category in the UK called F1000, run by the 750 Motor Club.

## Manufacturers

Manufacturers of Formula 1000 race car conversions are listed below in alphabetical order. A Formula 1000 conversion involves the modification of an existing Formula 1000 race car to meet current Formula 1000 rules. One of the major changes involved in a conversion is replacing the original engine and drive train with a 1000 cc super-bike engine using a chain drive train. Other modifications may include chassis frame changes, suspension changes and the addition of an aerodynamics package consisting of front and rear wings with a floor pan diffuser.
Manufacturers :
| Manufacturer | Models |
| Citation | |
| Griiip | G1 |
| Gloria | C7F |
| JDR Race Cars | |
| Novak Van Diemen Conversion | |
| Philadelphia Motorsports | |
| Phoenix Race Works | F1K.10 |
| Piper Engineering | DF6 |
| Racing Concepts | Speads RM-07A |
| Ralph Firman Racing | RFR F1000 009 |
| SSR Engineering | 2007 RF07 |
| Stohr Cars | F1000 |

## Engines

All specifications are manufacturer claimed. Rear wheel horsepower is measured with engine installed in superbike. Installed in a Formula car, rear wheel horsepower may differ from values below.

### Manufacturers

Honda, Kawasaki, Suzuki, Yamaha, Aprilia

### Popular Suzuki engines in F1000 competition
#### Suzuki K7: 2007–2008

* Engine: 998.6 cc (60.94 cu in), 4-stroke, four-cylinder, liquid-cooled, DOHC, 16-valve, TSCC
* Bore Stroke: 73.4 mm (2.89 in) x 59.0 mm (2.32 in)
* Compression Ratio: 12.5:1
* Power (crank) 185 hp (138 kW) @ 12,000 rpm
* Fuel System: Fuel Injection
* Lubrication: Wet Sump or Dry Sump
* Ignition: Digital/transistorized
* Transmission: 6-speed, constant mesh 6-speed, constant mesh, Back-torque limiting clutch

#### Suzuki K9: 2009–2012

* Engine 999 cc (61.0 cu in), 4-stroke, four-cylinder, liquid-cooled, DOHC, 16-valve, TSCC
* Bore Stroke: 74.5 mm (2.93 in) x 57.3 mm (2.26 in)
* Compression Ratio 12.8:1
* Power (crank) 191 hp (142 kW) @ 12,000 rpm
* Fuel System: Fuel Injection
* Lubrication: Wet Sump or Dry Sump
* Ignition: Digital/transistorized
* Transmission: 6-speed sequential, constant mesh 6-speed, constant mesh, Back-torque limiting clutch

### Honda engines

Honda Engine :
| | 2004/2005 | 2006/2007 |
| Engine Type | 998 cc liquid-cooled inline four-cylinder | 998 cc liquid-cooled inline four-cylinder |
| Bore/Stroke | 75.0 mm (3.0 in) x 56.5 mm (2.2 in) | 75.0 mm (3.0 in) x 56.5 mm (2.2 in) |
| Compression Ratio | 11.9:1 | 12.2:1 |
| Rear Wheel Horsepower | 148.6 bhp (110.8 kW) @ 10,750 rpm | 158.8 bhp (118.4 kW) @ 11,500 rpm |
| Rear Wheel Torque | 76.4 lb⋅ft (103.6 N⋅m) @ 8,500 rpm | 79.6 lb⋅ft (107.9 N⋅m) @ 8,750 rpm |
| Redline | 13,000 rpm | xx,xxx rpm |
| Valve Train | DOHC; four valves per cylinder | DOHC; four valves per cylinder |
| Fuel Delivery | Dual Stage Fuel Injection (DSFI) | Dual Stage Fuel Injection (DSFI) |
| Ignition | Computer-controlled digital transistorized with three-dimensional mapping | Computer-controlled digital transistorized with three-dimensional mapping |
| Drivetrain |||
| Transmission | Cassette-type, close-ratio six-speed | Cassette-type, close-ratio six-speed |

## Formula 1000 at the SCCA National Championship Runoffs

| Year | Winner | Car | Engine |
| 2010 | Brandon Dixon | Citation F1000 | Suzuki |
| 2011 | Brian Novak | Piper F1000 | Suzuki |
| 2012 | Brandon Dixon | Citation F1000 | Suzuki |
| 2013 | Lawrence Loshak | JDR-012 | Suzuki |
| 2014 | J.R. Osborne | RFR F1000 | Kawasaki |
| 2015 | J.R. Osborne | RFR F1000 | Kawasaki |
| 2016 | Kevin Roggenbuck | RFR F1000 | Kawasaki |
| 2017 | Alex Mayer | JDR-012 | Suzuki |
| 2018 | Gary Hickman | Phoenix | Suzuki |
| 2019 | Pete Frost | Phoenix | Suzuki |

## Defunct editions of F1000

Defunct F1000 Racing Series:
* F1000 Championship (2007-2013) - Was a "membership" championship that did not run its own events.
* F1000 Pro Series (2009-2013) - Ran events on the West Coast before merging with F1000 Championship to form US Formula 1000 Championship.
* US Formula 1000 Championship (2013-2016) - Ran events in conjunction with SCCA Majors