Humana is this not supercharged or turbocharged? Torque seems high/ish.
Chevrolet Corvette IMSA GTP (C4) specs
| Car type | Coupe |
| Curb weight | 880 kg (1940 lbs) |
| Dimensions | 4.78 m (188 in) long, 2.01 m (79 in) wide, 1.04 m (41 in) high |
| Wheelbase | 2.71 m (106 in) |
| Years built | 1984 - 1988 |
| Origin country | United States |
| Tyres | Michelin Pilot Sport GT L |
| Views | 560 |
| Submitted by | humana |
Lap times
Powertrain specs
| Engine type | V6 turbo |
| Displacement | 3.4 l (207 ci) |
| Power | 912 ps (900 bhp / 671 kw) @ 8500 rpm |
| Torque | 813 Nm (600 lb-ft) @ 6000 rpm |
| Power / liter | 268 ps (265 hp) |
| Power / weight | 1037 ps (1023 bhp) / t |
| Torque / weight | 924 Nm (681 lb-ft) / t |
| Transmission | 5 speed manual |
| Layout | front engine, rear wheel drive |
Corvette IMSA GTP competition
Qualifying results
| Race | # | Driver | Time | Gap |
|---|---|---|---|---|
| 1986 Road Atlanta 500 Kilometres | 1st | Doc Bundy | 1:12.00 | - |
| 1986 West Palm Beach 3 Hours | 1st | Doc Bundy | 1:05.60 | - |
| 1986 Road America 500 Miles | 1st | Sarel van der Merwe | 1:58.06 | - |
| 1986 500 km of Road Atlanta | 1st | Sarel van der Merwe | 1:12.00 | - |
| 1986 24 Hours of Daytona | 1st | Wally Dallenbach Jr. | 1:39.32 | - |
| 1985 Daytona Finale 3 Hours | 1st | Sarel van der Merwe | 1:38.88 | - |
| 1986 Daytona Finale 3 Hours | 1st | Sarel van der Merwe | 1:39.56 | - |
| 1986 500 miles of Watkins Glen | 1st | Sarel van der Merwe | 1:39.18 | - |
| 1986 3 Hours of Miami | 1st | Sarel van der Merwe | 1:16.72 | - |
| 1987 West Palm Beach 3 Hours | 1st | Doc Bundy | 1:05.13 | - |
| 1987 Riverside 500 Kilometres | 2nd | Doc Bundy | 1:10.07 | +0.0 |
| 2025 HSR IMSA Classic at Rolex 24 Race | 2nd | Scooter Gabel | 1:57.02 | +2.6 |
| 1988 Del Mar 2 Hours | 3rd | Sarel van der Merwe | 1:07.69 | +1.2 |
| 1987 Miami 3 Hours | 3rd | Doc Bundy | 1:12.88 | +3.2 |
| 2025 HSR IMSA Classic at Rolex 24 2 | 3rd | Scooter Gabel | 1:56.83 | +1.6 |
| 1987 24 Hours of Daytona | 3rd | Sarel van der Merwe | 1:42.20 | +1.2 |
| 1987 Laguna Seca 300 Kilometres | 4th | Sarel van der Merwe | 0:57.34 | +0.3 |
| 1988 Portland 300 Kilometres | 4th | Sarel van der Merwe | 0:59.96 | +2.0 |
| 1988 Columbus 300 Kilometres | 4th | Bobby Rahal | 1:31.82 | +1.3 |
| 1988 3 h San Antonio | 4th | Sarel van der Merwe | 1:05.96 | +1.2 |
FastestLaps 2y ago
FastestLaps 2y ago @humana
I think that was time when turbo was the thing to have. Non-turbo were not competitive. Think Porsche 962 at Le Mans, 935 Moby Dick etc.
Regulations could be made to compensate for this by allowing n.a. cars to have much more displacement. But there was practically no limit of how much power could be squeezed out by forced induction and they didn't really know how far engineers could stretch these turbo engines. So I can imagine that by the time regulations were finalized, turbo technology already had moved on and you needed even more handicap on them to level the field.
Yet, of course, there have been n.a. turbo beaters. Like some of those super sexy V12 Jaguars.
