2003 Nissan Altima - Specs

Engine	2.5 / 2.5 S / 2.5 SL	3.5 SE
Name	QR25	VQ35
Cam Design	DOHC
Orientation	Transverse
Cylinders / Configuration	I4	V6 w/Molybdenum coated pistons
Block / Head Composition	Aluminum / aluminum
Displacement (liters)	2.5L	3.5L
Horsepower	175 @ 6,000 RPM	245 @ 5,800 RPM
Torque (lbs/ft)	180 @ 4,000 RPM	246 @ 4,400 RPM
Bore & Stroke (mm)	89.0 x 100.0	95.5 x 81.4
Compression Ratio (:1)	9.5	10.3
Maximum Engine Speed	6,200 RPM	6,600 RPM
Induction System	Sequential multi-point electronic fuel injection
Valvetrain	4-valves-per-cylinder; w/CVTC
Engine Cover	Standard
Recommended Fuel	Regular unleaded	Premium unleaded
Emissions System	Closed Loop Alpha Control, ECCS
Emission Certification Level	LEV
Exhaust	Variable capacity muffler	Dual exhaust

Electrical	2003 Nissan Altima
Ignition System	Electronic, Nissan Direct Ignition System (NDIS)
Starter	1.4 kW
Alternator	110 Amp.
Battery	12V-55Ah (5HR)

Powertrain	Manual Transmission 4-Cylinder	Manual Transmission V6	Automatic Transmission 4-Cylinder	Automatic Transmission V6
Drive configuration	Front-engine / front-wheel drive
Transmission Type	5-speed manual		Std on 2.5 / 2.5 S / 3.5 SE
	4-speed auto w/ overdrive		Standard on 2.5 SL
Gear Ratio
1st	3.416	3.153	2.785	2.785
2nd	1.944	1.842	1.545	1.545
3rd	1.258	1.258	1.000	1.000
4th	0.947	0.947	0.694	0.694
5th	0.772	0.772	-	-
Reverse	2.272	2.272	3.252	3.002
Final Drive Ratio	4.133	3.812	4.087	3.789
Drive Shaft	Carbon Fiber Reinforced Plastic (CFRP)
Helical Limited-Slip Differential	Optional on SE

Brakes		2003 Nissan Altima
Front	Type	Vented Disc
	Rotor size diameter and thickness (in.)	11.7" x .94t"
Rear	Type	Self-adjusting, Solid Disc
	Rotor size diameter and thickness (in.)	11.5" x .35t"
Brake Assist		Standard
Brake Control	w/ABS	Power-assisted with Brake Assist and Electronic Brake force Distribution (EBD)
	w/o ABS	Power-assisted
ABS	Not available on 2.5; Optional on 2.5 S, 2.5 SL and 3.5 SE
	Number of Wheels	4
	Number of Channels	4
	Number of Sensors	4
Electronic Brake force Distribution (EBD)		Standard
Parking Brake		Hand operated along left side of center console

Steering	2.5/2.5S/2.5SL	3.5 SE
Type	Power rack-and-pinion
Power Assisted	Standard
Overall Ratio (:1)	16.1
Turns (lock to lock)	2.8	2.6
Turning Diameter (curb to curb, in feet)	37.4	38.7

Suspension		2003 Nissan Altima
Front	Independent multi-link aluminum suspension
	Stabilizer Bar	Standard
Rear	Multi-Link independent suspension
	Stabilizer Bar	Standard

Body / Chassis	2003 Nissan Altima
Type	Unibody
Materials (primary)	Corrosion resistant and high strength steel

Wheels and Tires	2.5	2.5 S	2.5 SL	3.5 SE
Wheels
Steel with bolt-on cover	Standard	Standard	-	-
Aluminum-alloy	-	Optional	Standard	Standard
6.5JJ x 16	Standard	Standard	Standard
7.0JJ x 17				Standard
Tires
P205/65R16 T-rated all-season tires	Standard	Standard	Standard	-
P215/55R17 H-rated (V6 A/T) or V-rated (V6 M/T) all-season tires	-	-	-	Standard
Spare Tire	Standard

Lights		2.5	2.5 S	2.5 SL	3.5 SE
Headlights	Halogen	Standard	Standard	Standard	Standard
	Xenon	-	-	-	Optional
Auto On/Off (ambient light sensitive)		-	Optional	Standard	Standard
Fog Lights		-	-	-	Standard
Center high mount stop light	Parcel shelf	Standard	Standard	Standard	Standard
	Spoiler	-	-	-	Optional

Exterior Dimensions		2003 Nissan Altima
Wheelbase		110.2
Overall length		191.5
Overall width		70.4
Overall height		57.9
Tread width	Front	61.0
	Rear	61.2
Coefficient of drag (Cd)		0.32
Trunk liftover height		27.6

Interior Dimensions	Front	Back
Head room (w/o sunroof)	40.8	37.6
Leg room	43.9	36.4
Hip room	53.0	52.7
Shoulder room	56.7	56.1

Weights		2.5	2.5 S	2.5 SL	3.5 SE
Curb (pounds)	Front - Manual	1,810	1,844	-	1,974
	Front - Automatic	1,858	1,893	1,896	2,023
Curb (pounds)	Rear - Manual	1,191	1,195	-	1,223
	Rear - Automatic	1,191	1,195	1,210	1,223
Curb (pounds)	Total - Manual	3,001	3,039	-	3,197
	Total - Automatic	3,049	3,088	3,106	3,246
Weight distribution (%)	Front/Rear M/T	60/40	61/39	-	62/38
	Front/Rear A/T	61/39	61/39	61/39	62/38
GVWR (pounds)	QR25 - I4	4,202
	VQ35 - V6	4,374

Electrical	2003 Nissan Altima
Passenger compartment	103.2
Cargo	15.6
Total	118.8

Fuel Economy	2003 Nissan Altima
QR25 - I4: Automatic (City / Highway)	23 / 29
QR25 - I4: Manual (City / Highway	23 / 29
VQ35 - V6: Automatic (City / Highway)	19 / 26
VQ35 - V6: Manual (City / Highway)	21 / 26

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