Press Release
2008 Infiniti QX56 Technical Specifications Features
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Engine |
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Type |
ZH-2 (VK56DE) |
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Orientation |
Longitudinally-mounted |
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Cylinders / configuration |
V8 |
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Block / head composition |
Aluminum /aluminum |
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Displacement |
5.6 liters |
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Horsepower |
320 @ 5,200 rpm |
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Torque |
393 lb-ft @ 3,400 rpm |
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Bore & stroke (mm) |
98 x 92 |
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Compression ratio (:1) |
9.8 |
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Induction system |
Naturally aspirated |
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Valvetrain |
DOHC 32 valve; silent chain, single stage |
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Mounts |
Standard (no fluid-filled) |
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Recommended fuel |
Regular unleaded |
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Emissions certification level |
Tier2-Bin8z (EPA) / LEV1-ULEV (Cal) |
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Exhaust |
Single exit/main and secondary mufflers |
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Drivetrain |
2WD |
4WD |
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Drive configuration |
RWD and 4WD |
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Transmission type |
Automatic; 5-speed with overdrive |
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Automatic transmission oil cooler |
S |
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Gear ratio s (:1 ) |
RWD |
4WD |
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1st |
3.827 |
3.827 |
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2nd |
2.368 |
2.368 |
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3rd |
1.520 |
1.520 |
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4th |
1.000 |
1.000 |
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5th |
0.834 |
0.834 |
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Reverse |
2.613 |
2.613 |
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Final drive ratio (:1) |
2.937 |
3.357 |
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Transfer case / crawl ratios |
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Axle |
3.357 |
3.357 |
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4WD high |
- |
1.000 |
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4WD low |
- |
2.596 |
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Crawl ratio: 1st |
11.240 |
12.85/33.35 |
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Crawl ratio: 2nd |
6.955 |
7.95/20.64 |
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Crawl ratio: reverse |
2.04 |
2.33/6.05 |
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Body/ Chassis |
2WD |
4WD |
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Body type |
Body-on-frame (F-Alpha) |
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Primary materials |
Corrosion-resistant and high-strength steel |
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Skid plates |
Transfer case |
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- |
S |
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Oil pan |
- |
S |
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Fuel tank |
- |
S |
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Brakes |
2WD |
4WD |
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Front: Vented disc 320mm x 26mm |
S |
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Rear: Vented disc 320mm x 14mm |
S |
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4-wheel disc brakes |
S |
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4-wheel Anti-lock Braking System (ABS) |
S |
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Brake Assist (BA) |
S |
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Electronic Brake Force Distribution (EBD) |
S |
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Vehicle Dynamic Control (VDC) |
S |
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Suspension and Steering |
2WD |
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4WD |
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Front suspension |
Double wishbone |
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Front stabilizer bar |
S |
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Rear suspension |
Double wishbone independent |
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Rear stabilizer bar |
S |
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Auto leveling rear suspension |
S |
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Steering type |
Rack-and-pinion |
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Power assisted |
Engine speed-sensitive |
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Steering ratio (:1) |
20 |
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Turns (lock-to-lock) |
3.6 |
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Turning diameter (curb-to-curb) |
40.8 ft |
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