Japanese
| 1988 | |
| 1989 | |
| 2008 | |
| 2009 | |
| 2011 |
| 2002 | |
| 2003 | |
| 2004 | |
| 2005 | |
| 2006 | |
| 2008 | |
| 2010 | |
| 2011 |
| Year | Class | Machine | Rank | Win |
|---|---|---|---|---|
| 2011 | GT300 | 22 (1) |
| Entrant Name | Hitotsuyama Racing | |
|---|---|---|
| Supervisor | Hidekazu Oniki | |
| Representative | Ryoji Hitotsuyama | |
| Company | Hitotsuyama Racing | |
| Website | http://hitotsuyamaracing.net/ | |
| Main Sponsor | investors CO.,LTD | |
| Sponsor | Racerbook Tunewear Gravity sparco ei8ht |
| Name | investors Audi R8 LMS | |
|---|---|---|
| Based Vehicle | Audi R8-LMS | |
| Chief Engineer |
| Car Model | R8-LMS | |
|---|---|---|
| Dimensions | 4475 × 1994 × 1194.5mm | |
| Weight | ||
| Wheelbase | ||
| Treads | ||
| Transmission | ||
| Clutch | ||
| Suspension F | ||
| R | ||
| Brakes F | ||
| R | ||
| Tires | YH | |
| F | ||
| R | ||
| Wheels | ||
| F | ||
| R |
| Engine Model | ||
|---|---|---|
| Type | ||
| Displacement | ||
| Bore & Stroke | ||
| Ristrictor( size & number ) | ||
| Max Power( ps / rpm ) | ||
| Max Torque( kg-m / rpm ) | ||
| Lubricant( brand ) |
| Engine Tuner | ||
|---|---|---|
| Machine Maintenance |
| 4/13-14 | Round1 OKAYAMA | |
| 5/03-04 | Round2 FUJI | |
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6/01-02 | Round3 SUZUKA |
| 8/03-04 | Round4 FUJI | |
| 8/31-9/01 | Round5 SUZUKA | |
| 9/21-22 | Round6 SUGO | |
| 10/19-20 | Round7 AUTOPOLIS | |
| 11/02-03 | Round8 MOTEGI |
