|Location||Shimotsuma, Ibaraki, Japan|
|Time zone||JST, UTC, GMT +9|
|Major events||MFJ Superbike|
Tsukuba Time Attack
|Length||2.045 (without chicane)|
2.070 (with chicane) km (1.287 mi)
|Race lap record||44.008 seconds (Kamui Kobayashi, Dallara SF14, 2015)|
Tsukuba Circuit (Japanese: 筑波サーキット, Tsukuba Sа̄kitto) is a motorsport race track located in Shimotsuma, a neighboring city of Tsukuba, Ibaraki Prefecture, Japan. It is 2.045 kilometres (1.271 mi) long, with 32 pit garages and a 437 m (0.272 mi) long back straight. There is a small chicane used only for motorcycle racing that increases the track's total length to 2.070 kilometres (1.286 mi).
The track was established in 1966 with the aim of attracting young people to participate in motor sports, but was not actually completed until 1970. At the present time, an event is held every week. The track has a large variety of corners, ranging from wide sweepers to hairpins. The circuit accommodates 8500 spectators on the track, 3000 in the stands, 5000 on lawn seats, and 500 standing over the pits.
Admission is free on weekdays and ¥500 on weekends, but only when there are no scheduled events. Visitors are allowed to drive on the track with a license. Tsukuba Circuit is not accessible by public transportation, so renting a car is the best way to get there. A taxi is also available from Kanto Railway's Soudou Station, though it will take longer.
Tsukuba's "Time Attack" event (alternatively known as Super Lap or Tuner Battles) originated in Japan when the tuning media organized the event on race circuits such as Tsukuba, as a proving ground for street tuned cars built at a large budget by highly respected tuning companies. As a result of the quick rise in popularity, tuners developed specialized cars to beat the competition, including the purpose-built HKS CT230R Lancer Evolution with a body made entirely out of carbon fibre.
Unlike other timed motorsport disciplines such as sprinting and hillclimbing, the car is required to start off under full rolling start conditions following a warm-up lap, where they will have to accelerate out as fast as possible to determine how fast they enter their timed lap. Commonly, as competing cars consist of modified road-going models, they are required to wear tires authorized for road use. In all, drivers are allocated to three laps in a final event run; warm-up, timed and cool-down.
The following is a table of best Time Attack times, last updated 21 December 2019:
|Pos||Team||Car||Best lap (sec)||Top speed (km/h)|
|1||Scorch Racing with Under Suzuki||Nissan Silvia (S15)||50.366||245.622|
|2||Escort Drag Racing Service||Mitsubishi Lancer Evolution VIII||50.716||236.998|
|3||Top Fuel Drag & Street Shop||Honda S2000 (AP1)||51.762||233.080|
|4||Garage G-Force||Mitsubishi Lancer Evolution VIII||52.391||223.927|
|5||Racing Factory AutoBahn||Toyota Soarer (JZZ30)||52.454||248.447|
|6||Vibrant Performance with PZ Tuning||Honda Civic (FG4)||53.071||237.781|
|7||Esprit||Honda NSX (NA1)||53.474||239.734|
|8||Car Shop Dream KJM with Voltex||Mazda RX-7 (FD3S)||53.489||225.894|
|9||HKS||Mitsubishi Lancer Evolution IX CT230R||53.589||228.xxx|
|10||Revolution||Mazda RX-7 (FD3S)||53.673||225.894|
|11||Friends Racing||Nissan Silvia (S15)||53.821||223.602|
|12||Kyushu Danji||Honda NSX (NA2)||54.101||222.635|
|13||DLanguage||Subaru Impreza (GRB) R205||54.115||225.282|
|14||Admix Racing Service with Seyamax||Nissan Skyline GT-R (BNR32)||54.118||221.584|
|15||Autech Tsukada (ATTKD)||Nissan Skyline GT-R (BNR32)||54.145||232.909|
|16||Sakamoto Engineering||Mazda RX-7 (FD3S)||54.252||225.282|
|17||Sun Automobile with Garage HRS||Mitsubishi Lancer Evolution VII CyberEVO||54.392||---.---|
|18||M Speed||Nissan Skyline GT-R (BNR34)||54.481||229.348|
|19||Endless||Mazda RX-7 (FD3S)||54.483||212.014|
|20||Top Fuel Racing||Mazda RX-7 (FD3S)||54.585||224.439|
In popular culture
Tsukuba Circuit has appeared in numerous video games, including iRacing, Forza Motorsport, 2, 3, and 4, Gran Turismo 4, PSP, 5, 6, and Sport, Tourist Trophy, Enthusia Professional Racing, rFactor, Assoluto Racing, and D1 Grand Prix.
The track is commonly used for tuner events and has appeared in the final installment of the Shuto Kousoku Trial series, SKT Max. The circuit has also gained popularity because of its use by Best Motoring to test and race a variety of vehicles.
- "Tsukuba Circuit". Moto Racing Japan. Retrieved 2006-11-06.
- "Go! Go! Speed Racer!". Ibaraki Prefecture. Retrieved 2006-11-06.
- "What is the Tsukuba Circuit?". She Japan. Retrieved 2006-11-06.
- Time Attack FAQ's Archived 2007-09-12 at the Wayback Machine
|Wikimedia Commons has media related to Tsukuba Circuit.|