1981 Riverside 6 Hours

Route sketch of the Riverside International Raceway

The 1981 Riverside 6-Hour Race , also known as the Los Angeles Times / Toyota Grand Prix of Endurance, Riverside International Raceway , took place on April 24th at the Riverside International Raceway and was the fifth round of this year 's World Sports Car Championship . At the same time, the race was the fifth round of the IMSA GTO and GTU championship in 1981.

The race

By combining the 1981 Sports Car World Championship with the US IMSA GTP series at some racing events, the fourth - the Monza 1000 km race - and the fifth world championship round - the Riverside race - were on the same day carried out. Due to the time difference between Europe and North America, Riverside started later. The race was important for BMW because their first IMSA prototype , the BMW M-1 / C , made its racing debut. David Hobbs and Marc Surer finished the race in sixth place overall. The race was won by John Fitzpatrick and Jim Busby , with a narrow 34-second lead over John Paul and his son John Paul junior after six hours of racing . The two winning teams and those placed up to fifth overall all drove a Porsche 935 .

Results

Final ranking

Item	class	No.	team	driver	vehicle	Round
1	GTX	1	John Fitzpatrick Racing	John Fitzpatrick Jim Busby	Porsche 935K3 / 80	199
2	GTX	1	JLP Racing	John Paul senior John Paul junior	Porsche 935JLP-3	199
3	GTX	9	Cooke-Woods Racing	Bobby Rahal Brian Redman	Porsche 935K3	197
4th	GTX	90	Bob Garretson Enterprises	Bob Garretson Ralph Kent-Cooke Roy Woods	Porsche 935K3	190
5	GTX	86	Bayside Disposal Racing	Hurley Haywood Bruce Leven	Porsche 935/80	189
6th	GTX	2	BMW North America	David Hobbs Marc Surer John Morton	BMW M-1 / C	188
7th	GTO	25th	Red Lobster Racing	Kenper Miller Dave Cowart	BMW M1	183
8th	GTO	54	Montura Racing	Albert Noan Tony Garzia Hiram Cruz	BMW M1	181
9	GTX	19th	Chris Cord	Chris Cord Jim Adams	Chevrolet Monza	178
10	GTX	18th	JLP Racing	Carlos Moran Karen Erstad	Porsche 935JLP-2	178
11	GTO	67	Joe Crevier	Joe Crevier Al Unser junior	BMW M1	176
12	GTU	23	Raytown Datsun	Frank Carney Dick Davenport	Datsun 280ZX	173
13	GTO	28	NTS Racing	Sam Posey Fred Stiff	Datsun 280ZX	172
14th	GTX	30th	Momo penthouse	Giampiero Moretti Jochen Mass	Porsche 935 / 78-81	172
15th	GTU	55	Mandeville Racing	Roger Mandeville Amos Johnson	Mazda RX-7	169
16	GTO	51	Casa Blanca fan	Robert Kirby John Hotchkis	Porsche Carrera RSR	168
17th	GTO	56	Rick Borlase	Rick Borlase Michael Hammond	Porsche Carrera	168
18th	GTU	74	McDonalds Houses	Casey Mollett Frank Honoswetz	Datsun 240Z	167
19th	GTU	50	Downing Atlanta	Jim Downing Irv Hoerr	Mazda RX-7	165
20th	GTU	7th	Loud car racing	Jim Mullen Rick Knoop	Mazda RX-7	160
21st	GTU	62	Kegel Enterprises	Bill Knoll Jeff Kline	Porsche 911SC	158
22nd	GTX	46	Mauricio De Narveaez	Mauricio de Narváez Bob Akin Skeeter McKitterick	Porsche 935J	154
23	GTO	26th	Nardi Motors	Sergio Nardi Angel Nardi Steve Michaelson	Porsche Carrera	154
24	GTO	04	T&R Racing	Tico Almeida Rene Rodríguez	Porsche Carrera RSR	151
25th	GTO	5	Peter Herke	Peter Herke Dieter Schulz Reinhard Riedel	BMW 3.5CSL	149
26th	GTU	57	Personalized car dealership	Robert Overby Jeff Scott Wayner Baker	Porsche 914/6	145
27	GTU	45	Autosport Technology	Bill Cooper Dwight Mitchell Ray Ratcliff	Porsche 914/6	132
28	GTO	31	RSR Associates	Tom Marx Dennis Lanfre Bill Follmer	Porsche Carrera RSR	129
29	GTU	17th	Richard Woodbury	Richard Woodbury Bruce Campbell	Porsche 911	129
30th	GTO	81	Trinity Racing	Steve Dietrich Tom Winters	Mazda RX-7	77
31	GTX	76	Arrow Heating Co.	John Chamberlain Joe Chamberlain	Chevrolet Corvette	64
32	GTX	80	Fantasy Racing	Vic Manuelli Bruce Mallery Ron Woods	De Tomaso Pantera	55
Failed
33	GTO	43	Bob Gregg	Bob Gregg Len Jones	Porsche Carrera	162
34	GTO	11	Kendall Racing	Dennis Aase Pete Smith	BMW M1	153
35	GTX	3	Andial Masters Racing	Rolf Stommelen Howard Meister	Porsche 935M16	125
36	GTO	14th	Bavarian Motors International	Alf Gebhardt Bruno Beilcke Mike Freberg	BMW M1	99
37	GTU	22nd	Personalized car dealership	Wayne Baker Robert Overby	Porsche 914/4	98
38	GTX	84	Scorpio Racing	Enrique Molins Eduardo Barrientos	Porsche 935M16	87
39	GTU	92	Kent Racing	Kathy Rude Divina Galica	Mazda RX-7	80
40	GTU	99	Kent Racing	Lee Muller Walt Drill	Mazda RX-7	80
41	GTU	96	John Samson	John Samson Bill Kohl	Alfa Romeo GTV	77
42	GTU	82	Trinity Racing	Jim Cook John Casey	Mazda RX-7	57
43	GTU	73	Douglas Dowden	Jerry Demele Tony Herman	Porsche 911	53
44	GTX	0	Interscope Racing	Ted Field Danny Ongais	Porsche 935K3 / 80	48
45	GTX	08	Preston Henn	Preston Henn Marty Hinze Gary Belcher	Porsche 935K3	33
46	GTU	24	Zvonimir Jovanovic	Zvonimir Jovanovic Carl Wong	Porsche 911	33
47	GTX	21st	KMS Research	Jamey Mazzotta Steve Earle	Porsche 935	32
48	GTO	58	Kendall Racing	Alan Johnson Chuck Kendall	Porsche Carrera RSR	32
49	GTX	10	Donna Schons	Ron Esau SB Fritz Vince Giamformaggio	Pontiac Firebird	29
50	GTU	66	Jack Dunham	Jack Dunham Mike Meyer	Mazda RX-7	28
51	GTX	33	Bob Sharp Racing	Paul Newman Masahiro Hasemi	Datsun 280ZX	23
52	GTO	38	Fred Markoff	Fred Markoff Jason Len	Chevrolet Corvette	22nd
53	GTO	40	David Deacon Racing	David Deacon Mike Fredberg Rudy Bartling	BMW M1	21st
54	GTO	48	Dynasales	John Carruso Phil Currin	Chevrolet Corvette	21st
55	GTU	39	Fatcola	Greg LaCava Claudia LaCava	Porsche 911	17th
56	GTU	77	Renault USA	Patrick Jacquemart James Brolin	Renault Le Car	17th
57	GTO	42	Alex Porsche House	Bob Copeman Lawrence Farmer Ken Moore	Porsche Carrera	7th
58	GTX	09	Preston Henn	Gary Belcher Preston Henn Marty Hinze	Porsche 935K3	5
Not started
59	GTX	00	Interscope Racing	Ted Field Danny Ongais	Porsche 935K3 / 80	1
60	GTO	05	T&R Racing	Tico Almeida Rene Rodríguez	Porsche Carrera RSR	2
61	GTX	20th	Chris Cord Racing	Chris Cord Jim Adams	Chevrolet Monza	3
62	GTO	35	HSM Racing	Mandy Gonzales Bonky Fernandez	Porsche 934	4th
63	GTU	44	H&M garage	Ken McNicol Dwayne Anderson	Datsun 240Z	4th
64	GTU	47	CACI	Bill Shaw Bud Cashen	Lotus Esprit S1	5
65	GTO	53	Quick Associates	Steve Michaelson Steve Scott	Porsche Carrera	6th
66	GTU	71	Bear Gulch Racing	Bobbee Nylander Gary Nylander	Porsche 911	7th
67	GTX	72	BMW North America	David Hobbs Marc Surer	BMW M1	8th
68	GTO	75	Les Lindley	Les Lindley	Chevrolet Camaro	9
69	GTX	79	North American Racing Team	John Morton Milt Minter	Ferrari 365 GT4 / BB	10

¹ Replacement car ² Replacement car ³ not started ⁴ not started ⁵ not started ⁶ not started ⁷ not started ⁸ not started ⁹ not started ¹⁰ not started

Only in the entry list

Here you will find teams, drivers and vehicles that were originally registered for the race but did not take part for a variety of reasons.

Item	class	No.	team	driver	chassis
70		71	Cooke-Woods Garrteson		Lola T600
71	GTO	4th	North Star Racing	Bill Johnson Clay Johnson	Pontiac Grand Am
72	GTU	6th	Autopia Racing	Exay Borrero	BMW 320i
73	GTX	12	Bruce Canepa	Bruce Canepa	Porsche 935/79
74	GTX	16	Darrel Overstreet	Darrel Overstreet	Porsche 935
75	GTU	32	Alderman Datsun	George Alderman	Datsun 240Z
76	GTU	64	Alan Johnson Racing	Dennis Aase	Porsche 911
77	GTO	83	Electramotives	Don Devendorf Tony Adamowicz	Datsun 280ZX

Class winner

class	driver	driver	vehicle	Placement in the overall ranking
GTX	John Fitzpatrick	Jim Busby	Porsche 935K3 / 80	Overall victory
GTO	Kenper Miller	Dave Cowart	BMW M1	Rank 7
GTU	Frank Carney	Dick Davenport	Datsun 280ZX	Rank 12

Racing data

• Registered: 77
• Started: 58
• Rated: 32
• Race classes: 3
• Spectator: unknown
• Race day weather: warm and dry
• Route length: 5.311 km
• Driving time of the winning team: 6:00: 46.114 hours
• Total laps of the winning team: 199
• Total distance of the winning team: 1056.856 km
• Winner's average: 175.768 km / h
• Pole position: John Paul junior - Porsche 935JLP-3 (# 8) - 1.38.090 - 194.913 km / h
• Fastest race lap: John Paul junior - Porsche 935JLP-3 (# 8) - 1.40.710 - 189.841 km / h
• Racing series: 5th round of the sports car world championship in 1981
• Racing series: 5th round of the IMSA GTP series in 1981

literature

• Peter Higham: The Guinness Guide to International Motor Racing. A complete Reference from Formula 1 to Touring Car. Guinness Publishing Ltd., London 1995, ISBN 0-85112-642-1 .

Web links

• Race results at wspr

Previous race at the Monza 1000 km race in 1981

Sports car world championship

Successor to the 6-hour race at Silverstone 1981