: 2005 Cadillac STS Specifications



Lord Cadillac
08-26-04, 11:51 AM
Body style / driveline: luxury 4-door performance sedan with rear-wheel drive (V-8 and V-6) or all-wheel drive (V-8 only)
Construction: unitized welded steel body with direct-mounted front cradle and rubber-isolated, multi-link independent rear suspension assembly
Manufacturing location: Lansing Grand River Assembly, Lansing, Michigan
Key competitors: BMW 5 & 7-Series, Mercedes Benz E-Class, Lexus GS/LS 430, Audi A6, Jaguar S-Type

Engines
3.6L V-6 Northstar 4.6L V-8
Type: 60-degree 3.6L V-6 VVT (variable valve timing) 90-degree 4.6L V-8 VVT (variable valve timing)
Displacement (cu in / cc): 217 / 3564 278 / 4565
Bore & stroke (in / mm): 3.7 x 3.37 / 94 x 85 3.66 x 3.3 / 93 x 84
Block material: cast aluminum cast aluminum
Cylinder head material: semi-permanent mold aluminum semi-permanent mold aluminum
Valvetrain: roller follower DOHC, 4 valves per cylinder, continuously variable inlet and exhaust cam phasing roller follower DOHC, 4 valves per cylinder, continuously variable inlet and exhaust cam phasing
Ignition system: coil-on-plug with extended-life dual platinum-tipped spark plugs coil-on-plug with extended-life dual platinum-tipped spark plugs
Fuel delivery: returnless sequential fuel injection returnless sequential fuel injection
Compression ratio: 10.2:1 10.5:1
Horsepower (hp / kw @ rpm): 255 / 190 @ 6500
(preliminary)
320 / 238 @ 6400
(preliminary)

Torque (lb-ft / Nm @ rpm): 252 / 339 @ 3200 (preliminary) 315 / 459 @ 4400
(preliminary)

Recommended fuel: 87 octane unleaded regular (V6) 91 octane unleaded premium recommended (V8)
Maximum engine speed (rpm): 6700 6450
Emissions controls: evaporative system, close-coupled catalytic converters, positive crankcase ventilation, inlet and exhaust cam phasers, electronic throttle control feedback air-fuel-ratio control evaporative system, close-coupled catalytic converters, positive crankcase ventilation, inlet and exhaust cam phasers, electronic throttle control feedback air-fuel-ratio control
Estimated fuel economy (mpg city / hwy / combined): TBD TBD

Transmissions
Hydra-Matic 5L40-E (V-6 ) Hydra-Matic 5L50-E (V-8 )
Type: 5-speed electronically-controlled automatic with lockup torque converter, Driver Shift Control, and Performance Algorithm Liftfoot 5-speed electronically-controlled automatic with lockup torque converter, Driver Shift Control, and Performance Algorithm Liftfoot
Gear ratios (:1):
First: 3.42 3.42
Second: 2.21 2.21
Third: 1.60 1.60
Fourth: 1.00 1.00
Fifth: 0.75 0.76
Reverse: 3.02 3.02
Final drive ratio: 3.42 RWD: 2.73, 3.23, 3.42
AWD: 3.23

Chassis/Suspension
Standard/Luxury Package Sport Package
Front: independent, short/long arm, coil-over shock, anti-roll bar independent, short/long arm, coil-over shock, anti-roll bar
Rear: independent, modified multi-link, coil springs, automatic load leveling shock absorbers, anti-roll bar independent, modified multi-link, coil springs, magnetic ride control, pneumatic load leveling, anti-roll bar
Traction control system: full-range full-range
Stabilizer bar:
Front:

hollow, 33-mm diameter
hollow, 33-mm diameter

Rear: hollow, 17-mm diameter RWD: hollow, 19-mm diameter
AWD: hollow, 24-mm diameter

Steering type: power-assisted rack and pinion;
steering ratio: 18.2:1, variable ratio
power-assisted rack and pinion; ZF Servotronic II variable assist system available;
steering ratio: 18.2:1, variable ratio

Steering wheel turns, lock-to-lock: 3 3
Turning circle, curb-to-curb (ft / m): V-6 w/17-inch tires: 36.9/11.5 V-8 w/17-inch tires: 37.7/11.5
V-8 w/18-inch tires: 38.8/11.82

Brakes
Type: power-assist - vacuum with anti-lock control, traction control and StabiliTrak stability control power-assist - vacuum with anti-lock control, traction control, StabiliTrak stability control.
Optionally available high-performance European brake linings

Rotor diameter x thickness (in / mm): front: 11.9 x 1.3 / 303 x 32 vented disc;
rear: 11.7 x 1.0 / 298 x 26 vented disc
front: 12.7 x 1.3 / 323 x 32 vented disc;
rear: 12.6 x 1.0 / 320 x 26 vented disc


Wheels/Tires
Wheel size and type: 17 x 7-inch cast aluminum 17 x 7.5/8.0-inch (split size) aluminum; or 18 x 8-inch flow formed aluminum

Tires: Michelin V-rated, 235/50R17 & 255/45R17; or Michelin ALS 235/50R17

Michelin V-rated, 235/50R17 & 255/45R17; or,

Michelin W-rated, 235/50R18 & 255/45R18; or,

Michelin Pilot Sport, 255/45R18

Dimensions
Exterior
Wheelbase (in / mm): 116.4 / 2956
Overall length (in / mm): 196.3 / 4986
Overall width (in / mm): 72.6 / 1844
Overall height (in / mm): 57.6 / 1463
Track (in / mm): front: 61.8 / 1569; rear: 62.3 / 1581
Curb weight (lb / kg): 3.6L automatic: 3857 / 1750; 4.6L automatic: 3921 / 1779;
4.6 automatic w/AWD: 4230 / 1919

Weight distribution
(% front / rear): V-6: 52 / 48;
V-8: 54 / 46

Interior
Head room (in / mm): front: 38.7 / 983
rear: 37.9 / 962

Leg room (in / mm): front: 42.6 / 1082
rear: 38.3 / 972
Shoulder room (in / mm): front: 58.6 / 1488
rear: 57.4 / 1458

Hip room (in / mm): front: 54.6 / 1387
rear: 55.6 / 1412

Capacities
EPA total volume
(cu ft): 116.7
EPA trunk volume (cu ft): 13.8
Trailer towing maximum (lb / kg): 1000 / 454
Fuel tank (gal / L): 17.5 / 66.2
Engine oil (qt / L): V-6: 5 / 4.7;
V-8: 10 / 9.4

Cooling system (qt / L): 10.9 / 10.3
Seating capacity (front/rear): 2 / 3

rchern
12-16-06, 11:27 PM
Can you tell me why there are three different final drive ratios?

bigdog9586
12-17-06, 02:28 PM
because it depends on which package you ordered. V8, V6, or performance package.