1991 Infiniti Q45 Base
The 1991 Infiniti Q45 Base is a 278-hp 4.5-liter V8 with a 4-speed automatic and rear-wheel drive. It is rated at 17 mpg combined.
It makes 278 horsepower at 6,000 rpm and 292 lb-ft of torque at 4000 rpm. EPA fuel-economy estimates are 15 mpg city and 20 mpg highway (17 mpg combined).
The Q45 measures 199.8 inches long on a 113.2-inch wheelbase and has a curb weight of 4,039 lb.
| Spec | Value |
|---|---|
| Engine | |
| Engine Type | 4.5L DOHC V8 (VH45DE) |
| Displacement | 4.5 L |
| Horsepower | 278 hp @ 6,000 rpm |
| Torque | 292 lb-ft @ 4000 rpm |
| Valvetrain | DOHC, 4 valves/cyl (32 total), variable valve timing |
| Bore and Stroke | 93.0 x 82.7 mm |
| Compression Ratio | 10.2:1 |
| Injection Type | Electronic multiport fuel injection |
| Drivetrain | |
| Drive Type | Rear-wheel drive |
| Differential Type | Viscous limited-slip differential (R200V) |
| Transmission | |
| Transmission | 4-speed automatic (RE4R03A) |
| 1st Gear | 2.784 |
| 2nd Gear | 1.544 |
| 3rd Gear | 1 |
| 4th Gear | 0.694 |
| Final Drive | 3.538 |
| Fuel Economy | |
| City | 15 MPG |
| Highway | 20 MPG |
| Combined | 17 MPG |
| Recommended Fuel | Premium unleaded (91 octane) |
| Tank Capacity | 22.5 gal |
| Suspension | |
| Front Suspension | Independent, upper/lower control arms (wishbone), coil springs, stabilizer bar |
| Rear Suspension | Independent multi-link, coil springs |
| Front Stabilizer Bar | Standard diameter |
| Rear Stabilizer Bar | None |
| Brakes | |
| Front Brake Calipers | Single-piston floating caliper (CL28VF) |
| Front Brake Disc | 11.02 in (280 mm), ventilated |
| Rear Brake Disc | 11.50 in (292 mm), solid |
| Tires & Wheels | |
| Wheels Front | 15 x 6.5 in |
| Wheels Rear | 15 x 6.5 in |
| Tires Front | 215/65R15 |
| Tires Rear | 215/65R15 |
| Dimensions & Weight | |
| Length | 199.8 in |
| Width | 71.9 in |
| Height | 56.3 in |
| Wheelbase | 113.2 in |
| Front Track | 61.8 in |
| Rear Track | 61.8 in |
| Cargo Volume | 14.8 ft³ |
| Curb Weight | 4,039 lbs |
| Weight Distribution (F/R) | 57.2% / 42.8% |
| Interior | |
| Headroom Front | 38.2 in |
| Headroom Rear | 36.3 in |
| Legroom Front | 43.9 in |
| Legroom Rear | 32 in |