Cadillac STS V8, 2005 MY US

This vehicle has a 4 door saloon (sedan) body style with a front located engine driving through the rear wheels. It's powered courtesy of a naturally aspirated engine of 4.6 litre capacity. This unit features double overhead camshaft valve gear, a 90 degree V 8 cylinder layout, and 4 valves per cylinder. It has an output of 320 bhp (324 PS/239 kW) of power at 6400 rpm, and maximum torque of 427 N·m (315 lb·ft/43.5 kgm) at 4400 rpm. A 5 speed automatic gearbox transmits the power to the wheels. Claimed kerb weight is 1779 kg.

Pictures

Cadillac STS V8 -
Cadillac STS V8
Image courtesy of Cadillac

Key facts

Cadillac STS V8, 2005 MY US information summary

What body style?
4 door sedan/saloon with 4/5 seats
How long?
4986 mm
How heavy?
1779 kg
What size engine?
4.6 litre, 4565 cm3
How many cylinders?
8, V
How much power?
324 PS / 320 bhp / 239 kW @ 6400 rpm
How much torque?
427 Nm / 315 ft.lb / 43.5 kgm @ 4400 rpm

Cadillac STS models

4 door sedan/​saloon FR 6A 3564 cm3 306 PS 302 bhp 225 kW 1750 kg
4 door sedan/​saloon FA 6A 3564 cm3 306 PS 302 bhp 225 kW 1795 kg
4 door sedan/​saloon FR 5A 3564 cm3 259 PS 255 bhp 190 kW 1750 kg
4 door sedan/​saloon FA 5A 4565 cm3 324 PS 320 bhp 239 kW 1919 kg

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2005 Cadillac STS V8 data
Applicable to the USA domestic market(s).
bodywork
Body type4/5 seater sedan/saloon
Number of doors4
Designer
dimensions & weights
mminches
Wheelbase 2957 mm 116.4 inches
Track/tread (front) 1570 mm 61.8 inches
Track/tread (rear) 1582 mm 62.3 inches
Length 4986 mm 196.3 inches
Width 1844 mm 72.6 inches
Height 1463 mm 57.6 inches
Ground clearance
length:wheelbase ratio 1.69
Kerb weight 1779 kg 3922 lb
Weight distribution 54 % front
fuel tank capacity 66.2 litres 14.6 UK Gal 17.5 US Gal
aerodynamics
Drag coefficient
Frontal area
CdA
engine
engine type naturally aspirated petrol
Engine manufacturer GM
Engine code Northstar
Cylinders V 8 in 90° vee
Capacity 4.6 litre
4565 cc
(278.573 cu in)
Bore × Stroke 93 × 84 mm
3.66 × 3.31 in
Bore/stroke ratio 1.11
Valve gear double overhead camshaft (DOHC)
4 valves per cylinder
32 valves in total
maximum power output 324 PS (320 bhp) (239 kW)
at 6400 rpm
Specific output 70.1 bhp/litre
1.15 bhp/cu in
maximum torque 427 Nm (315 ft·lb) (43.5 kgm)
at 4400 rpm
Specific torque 93.54 Nm/litre
1.13 ft·lb/cu3
Engine construction aluminium block & head
sump wet sumped
compression ratio 10.5:1
Fuel system SFi
bmep (brake mean effective pressure) 1175.4 kPa (170.5 psi)
Maximum RPM 6450 rpm
crankshaft bearings 5
Engine coolant Water
Unitary capacity 570.63 cc
Aspiration Normal
Compressor N/A
Intercooler None
Catalytic converter Y
performance
Acceleration 0-80km/h (50mph)
Acceleration 0-60mph
Acceleration 0-100km/h
Acceleration 0-160km/h (100mph)
Standing quarter-mile
Standing kilometre
Maximum speed
Power-to-weight ratio 182.38 PS/tonne (1000 kg)
134.13 kW/tonne (1000 kg)
179.88 bhp/tonne (1000 kg)
0.08 bhp/lb
Weight-to-power ratio 7.46 kg/kW
12.45 lb/bhp
fuel consumption
Fuel consumption
universal consumption (calculated from the above)
litres/100km
km/litre
UK MPG
US MPG
Carbon dioxide emissions
Carfolio Calculated CO2 ?
VED band (UK)
CO2 Effizienz (DE)
chassis
Engine position front
Engine layout longitudinal
Drive wheels rear wheel drive  
Torque split N/A
Steering power assisted rack & pinion
turns lock-to-lock 3.000
Turning circle
Front suspension I.DW.ARB.
Rear suspension I.MultiLi.CS.ARB.
Wheel size front 7 x 17
Wheel size rear 7 x 17
Tyres front Michelin 235/50 R 17 V
Tyres rear Michelin 235/50 R 17 V
Brakes F/R VeDi/VeDi-S-ABS
Front brake diameter 323 mm
Rear brake diameter 320 mm
Braked area
Gearbox 5 speed automatic
Top gear ratio 0.76
Final drive ratio 2.73
general
Carfolio.com ID130460
Production total
Model code
Model family
RAC rating 42.9
Insurance classification No information available
Tax band No information available
2005 Cadillac STS V8 added 2005-07-01.
Last modified 2013-02-28.