The Nissan Present the 39th Annual 12 Hours of Sebring International Grand Prix of Endurance, was the third round of both the 1991 Camel GT Championship and Exxon Supreme GT Series and was held at the Sebring International Raceway, on 16 March.1991 IMSA GT Championship season
Report Circuit The Sebring circuit was changed from the previous year, being shortened from 4.11 miles to 3.7 miles, resembling the layout used today (with a few differences).
Entry A total of 54 cars were entered for the event, across four classes ranging through GTO /GTU up to GTP. Of these 51 cars practised.
Qualifying The Nissan NPT-90 of Geoff Brabham, partnered by Derek Daly and his younger brother, Gary Brabham took pole position. They were joined on the front row by their Nissan Performance team-mates Chip Robinson, Bob Earl and Julian Bailey.
Race In front of a crowd of approximately 80,000, the race was held over 12 Hours, on Sebring International Raceway. The race started in cool conditions, but finished wet. For most of the early running, the #6 Joest Racing Porsche 962C of Bob Wollek, Bernd Schnieder and Massimo Sigala lead. Apart from pit stops, this car lead until lap 80, when the pole winning Nissan took control of the race. The Brabham brothers and Daly would lead from lap 81 until their saw the flag on lap 298. In between, their team-mates (Robinson/Earl/Bailey) would lead a total of 41 laps, losing the lead for the last time, just six laps from home. During the race, there were seven full-course cautions covering 54 laps, lasting a total of 3 hours and 14 minutes. Despite this Brabham/Daly/Brabham took the winner spoils for Don Devendorf’s Nissan Performance Technology Inc. team. This partnership, driving their Nissan NPT-90, won in a time of 12hr 02:01.391mins., averaging a speed of 91.626 mph. They covered a distance of 1,102.6 miles. One lap adrift in second place was their fellow Nissan NPT-90 of Robinson/Earl/Bailey. Early front runners, Wolleck/Schnieder/Sigala brought their Porsche home at third just another lap further back. Another Porsche from Joest came home in fourth, driven by Frank Jelinski, Henri Pescarolo and ”John Winter”.
The top Jaguar was fifth in the hands of Davy Jones, Raul Boesel and John Nielsen.http://www.teamdan.com/archive/wsc/imsa/91/91sebring.html
Classification
Sebring 12 hours
Class Winners are in Bold text.
Pos Class No Team Drivers Chassis Tyre Laps Engine 1 GTP 83 Nissan Performance Technology Geoff Brabham Derek Daly Gary Brabham Nissan NPT-90 298 Nissan 3.0L Turbo V6 2 GTP 84 Nissan Performance Technology Chip Robinson Bob Earl Julian Bailey Nissan NPT-90 297 Nissan 3.0L Turbo V6 3 GTP 6 Joest Porsche Racing Bob Wollek Bernd Schneider Massimo Sigala Porsche 962C 296 Porsche 3.0L Turbo Flat-6 4 GTP 7 Joest Porsche Racing Frank Jelinski Henri Pescarolo "John Winter" Porsche 962C 295 Porsche 3.0L Turbo Flat-6 5 GTP 3 Bud Light/Jaguar Racing Davy Jones Raul Boesel John Nielsen Jaguar XJR-12D 284 Jaguar 6.5L V12 6 GTP 4 Tom Milner Racing Brian Bonner Scott Sharp Jeff Kline Spice SE89P 283 Chevrolet 6.0L V8 7 Lights 8 Essex Racing Charles Morgan Jim Pace Kudzu DG-1 280 Buick 3.0L V6 8 GTO 15 Roush Racing Max Jones Robby Gordon Ford Mustang 279 Ford 6.0L V8 9 GTP 10 Hotchkiss Racing Chris Cord Jim Adams John Hotchkiss Spice SE90P 278 Pontiac 6.0L V8 10 GTP 30 Momo/Gebhardt Racing Giampiero Moretti Hellmut Mundas Stanley Dickens Porsche 962C 277 Porsche 3.0L Turbo Flat-6 11 GTO 75 Clayton Cunningham Racing Jeremy Dale Steve Millen Johnny O'Connell Nissan 300ZX 277 Nissan 2.8L Turbo V6 12 GTO 63 Mazda USA John O'Steen Price Cobb Mazda RX-7 284 Mazda 2.6L 4-rotor 13 GTO 12 Roush Racing Dorsey Schroeder John Fergus Ford Mustang 271 Ford 6.0L V8 14 GTO 62 Mazda USA Calvin Fish Pete Halsmer John Morton Mazda RX-7 270 Mazda 2.6L 4-rotor 15 Lights 33 Spice Engineering USA Almo Coppelli Jay Hill Spice SE90P 265 Buick 3.0L V6 16 GTO 92 Morrison Motorsports Andy Pilgrim R. K. Smith Chevrolet Corvette ZR-1 260 Chevrolet 5.7L V8 17 GTU 95 Leitzinger Racing Bob Leitzinger David Loring Nissan 240SX 257 Nissan 3.0L V6 18DNF GTP 99 All American Racers Juan Manuel Fangio II Willy T. Ribbs Eagle-Toyota HF90 256 Toyota 3S-GTM 2.1L Turbo I4 19 GTO 90 Roush Racing Jim Stevens James Jaeger Don Walker Ford Mustang 250 Ford 6.0L V8 20 GTU 26 Alex Job Racing Alex Job Peter Kraft Jack Refenning Porsche 911 247 Porsche 3.2L Flat-6 21 Lights 18 Carlos Bobeda Racing Andy Evans George Robinson Carlos Bobeda Spice SE90P 236 Buick 3.0L V6 22 GTU 69 North Coast Racing Brad Hoyt Leighton Reese Mazda RX-7 234 Mazda 1.3L 2-rotor 23 GTU 82 Greer Racing Dick Greer Al Bacon Peter Uria Mazda RX-7 232 Mazda 1.3L 2-rotor 24 Lights 54 HDF Motorsports Michael Dow David Tennyson Ken Knott Spice SE89P 227 Buick 3.0L V6 25DNF GTP 24 John Shapiro James Weaver John Paul Jr. Porsche 962 GTi 218 Porsche 3.0L Turbo Flat-6 26 GTU 57 Kryderacing Reed Kryder Frank Del Vecchio Joe Danaher Nissan 240SX 207 Nissan 3.0L V6 27DNF Lights 48 Comptech Racing Parker Johnstone Doug Peterson Spice SE90P 204 Acura 3.0L V6 28 GTO 04 Henry Brosnaham Henry Brosnaham Steve Roberts Bobby Scolo Paul Mazzacane Richard Andison Chevrolet Camaro 166 Chevrolet 5.9L V8 29DNF GTP 5 Tom Milner Racing Tim McAdam Jeff Purner Fred Phillips Spice SE89P 165 Chevrolet 6.0L V8 30DNF Lights 80 Bieri Racing Ruggero Melgrati Martino Finotto Fermín Vélez Spice SE89P 147 Ferrari 3.0L V8 31DNF GTU 37 Botero Racing Rob Wilson Felipe Solano Francisco López Honorato Espinosa Mazda MX-6 140 Mazda 1.3L 2-rotor 32DNF Lights 40 Bieri Racing Uli Bieri John Graham Alba AR2 138 Ferrari 3.0L V8 33DNF GTO 91 Morrison Motorsports Scott Hayter Scott Lagasse Don Knowles Chevrolet Corvette ZR-1 134 Chevrolet 5.7L V8 34DNF Lights 9 Essex Racing Tom Hessert Costas Los Kudzu DG-1 128 Buick 3.0L V6 35DNF GTU 94 Guy W. Church E. J. Generotti Paul Tavilla Guy W. Church Mazda RX-7 113 Mazda 1.3L 2-rotor 36DNF GTO 53 Bill McDill Richard McDill Bill McDill Chevrolet Camaro 112 Chevrolet 6.0L V8 37DNF GTU 72 Jay Kjoller Motorsports Jay Kjoller Patrick Mooney Steve Volk Porsche 911 108 Porsche 3.2L Flat-6 38DNF GTU 41 Red Line Racing David Russell Jr. Michael Graham Cameron Worth BMW 325i 103 BMW 2.8L I6 39DNF GTP 98 All American Racers Rocky Moran Andy Wallace Eagle-Toyota HF90 82 Toyota 3S-GTE 2.1L Turbo I4 40DNF Lights 09 R. J. Racing Tommy Johnson Bob Robertson John Sheldon Tiga GC287 82 Buick 3.0L V6 41DNF GTO 87 Powertron Anthony Puloe John Annis Tom Panaggio Tom Walsh Chevrolet Camaro 75 Chevrolet 6.0L V8 42DNF GTP 21 Alucraft Hurley Haywood René Herzog Wayne Taylor Daniel Müller Porsche 962 70 Porsche 3.0L Turbo Flat-6 43DNF GTU 96 Leitzinger Racing Bob Leitzinger Chuck Kurtz Butch Leitzinger Nissan 240SX 52 Nissan 3.0L V6 44DNF GTO 76 Clayton Cunningham Racing Johnny O'Connell Jeremy Dale Steve Millen Nissan 300ZX 33 Nissan 3.0L Turbo V6 45DNF GTP 05 Tom Milner Racing Craig Carter Les Delano Andy Petery Fabcar GTP 75 Chevrolet 6.0L V8 46DNF GTO 52 Ken Bupp Robert Peters Ken Bupp Chevrolet Camaro 3 Chevrolet 5.9L V8 DNS GTP 2 Bud Light/Jaguar Racing Davy Jones Ken Acheson Raul Boesel Jaguar XJR-12D - Jaguar 6.5L V12 DNQ GTO 17 Beckett Racing Don Beckett Scott Lieb Robert McElheny Chevrolet Corvette - Chevrolet V8 DNQ GTO 06 HiTex Corp. Oma Kimbrough Mark Montgomery Hoyt Overbagh Chevrolet Camaro - Chevrolet 5.9L V8
Fastest lap: Bob Wollek, 1:51.120secs. (120.57 mph) http://www.teamdan.com/archive/imsa/91sebring.html
Class Winners
Class Winners GTP Brabham / Daly / Brabham Nissan NPT-90 GTP Lights Morgan / Pace Spice-Chevrolet SE89P GTO Jones / Gordon Ford Mustang GTU Leitzinger / Loring Nissan 240SX
http://www.teamdan.com/archive/imsa/91sebring.html
References