The 2004 Formula Nippon Championship was contested over 9 rounds, with 8 teams and 17 drivers competed. All teams had to use Lola chassis (Lola B3/51) and Mugen Honda (Mugen MF308) engines.

More information Race, Track ...

Race	Track	Date	Pole Position	Fastest Race Lap	Winning Driver	Winning Team
1	Suzuka Circuit	28 March	Yuji Ide	Richard Lyons	Takashi Kogure	PIAA Nakajima Racing
2	Sportsland SUGO	2 May	Richard Lyons	Takashi Kogure	Richard Lyons	DoCoMo Team Dandelion Racing
3	Twin Ring Motegi	6 June	Richard Lyons	Richard Lyons	André Lotterer	PIAA Nakajima Racing
4	Suzuka Circuit	4 July	Richard Lyons	Naoki Hattori	Richard Lyons	DoCoMo Team Dandelion Racing
5	Sportsland SUGO	1 August	Richard Lyons	Juichi Wakisaka	Satoshi Motoyama	ADiRECT Team 5ZIGEN
6	Mine Circuit	29 August	Benoît Tréluyer	Juichi Wakisaka	Benoît Tréluyer	mobilecast Team Impul
7	Sepang International Circuit	19 September	André Lotterer	Richard Lyons	André Lotterer	PIAA Nakajima Racing
8	Twin Ring Motegi	24 October	Juichi Wakisaka	André Lotterer	Yuji Ide	mobilecast Team Impul
9	Suzuka Circuit	7 November	Richard Lyons	Yuji Ide	Benoît Tréluyer	mobilecast Team Impul

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• At race 4 a sprint race of 18 laps (104.526 km) set the grid for the main race. The sprint race winner Richard Lyons started from pole in the main race.
• At race 7 a sprint race of 20 laps (110.72 km) set grid for the main race. The sprint race winner André Lotterer started from pole in the main race. Naoki Hattori set pole position for the sprint race.

• 2004 Japanese Championship Formula Nippon