Buick Regal Hardtop Coupé, 1975 MY 4A J57

The Regal Hardtop Coupé is a rear wheel drive coupé motor vehicle with a front mounted engine, from Buick. The Buick Regal Hardtop Coupé belongs to the 4A model family from Buick. The Buick Regal Hardtop Coupé's engine is a naturally aspirated petrol, 3.8 litre, overhead valve 90 degree V 6 cylinder with 2 valves per cylinder. This powerplant develops 110 bhp (112 PS/82 kW) of power at 4000 rpm, and maximum torque of 237 N·m (175 lb·ft/24.2 kgm) at 2000 rpm. The engine delivers its power through to the wheels via a 3 speed manual transmission. The Buick Regal Hardtop Coupé weighs a claimed 1755 kg at the kerb.

Pictures

Buick Regal Hardtop Coupé -
Buick Regal Hardtop Coupé
Image courtesy of Buick

Key facts

Buick Regal Hardtop Coupé, 1975 MY 4A J57 information summary

What body style?
2 door fixed-head coupé with 4/5 seats
How long?
5385 mm
How heavy?
1755 kg
What size engine?
3.8 litre, 3791 cm3
How many cylinders?
6, V
How much power?
112 PS / 110 bhp / 82 kW @ 4000 rpm
How much torque?
237 Nm / 175 ft.lb / 24.2 kgm @ 2000 rpm

Buick 4A models

2 door fixed-head coupé FR 3M 3791 cm3 112 PS 110 bhp 82 kW
2 door fixed-head coupé FR 3A 5724 cm3 147 PS 145 bhp 108 kW
2 door fixed-head coupé FR 3A 5724 cm3 162 PS 160 bhp 119 kW
2 door fixed-head coupé FR 3A 5724 cm3 167 PS 165 bhp 123 kW
2 door fixed-head coupé FR 3A 3791 cm3 112 PS 110 bhp 82 kW
2 door fixed-head coupé FR 3A 5724 cm3 162 PS 160 bhp 119 kW
2 door fixed-head coupé FR 3A 5724 cm3 167 PS 165 bhp 123 kW
2 door fixed-head coupé FR 3A 5724 cm3 147 PS 145 bhp 108 kW
2 door fixed-head coupé FR 3M 3791 cm3 112 PS 110 bhp 82 kW
2 door fixed-head coupé FR 3A 3791 cm3 112 PS 110 bhp 82 kW
2 door fixed-head coupé FR 3M 3791 cm3 112 PS 110 bhp 82 kW 1700 kg
2 door fixed-head coupé FR 3A 5724 cm3 162 PS 160 bhp 119 kW 1835 kg
2 door fixed-head coupé FR 3A 5724 cm3 147 PS 145 bhp 108 kW 1835 kg
2 door fixed-head coupé FR 3A 5724 cm3 167 PS 165 bhp 123 kW 1835 kg
Buick Regal Hardtop Coupé -
2 door fixed-head coupé FR 3A 3791 cm3 112 PS 110 bhp 82 kW

Similar models

2 door fixed-head coupé FR 1991 cm3 111 PS 109 bhp 81 kW
2 door fixed-head coupé FR 3M 4094 cm3 106 PS 105 bhp 78 kW 1602 kg
2 door fixed-head coupé FR 3M 4329 cm3 112 PS 110 bhp 82 kW
2 door fixed-head coupé FR 3A 4094 cm3 106 PS 105 bhp 78 kW 1612 kg
2 door fixed-head coupé FR 3A 4329 cm3 112 PS 110 bhp 82 kW
2 door fixed-head coupé FR 3A 4093 cm3 112 PS 110 bhp 82 kW
2 door fixed-head coupé FR 3M 4085 cm3 112 PS 110 bhp 82 kW 1611 kg
2 door fixed-head coupé FR 3A 4085 cm3 112 PS 110 bhp 82 kW
2 door fixed-head coupé FR 3A 4093 cm3 112 PS 110 bhp 82 kW
2 door fixed-head coupé FR 3M 4085 cm3 112 PS 110 bhp 82 kW 1489 kg
2 door fixed-head coupé FR 3A 4085 cm3 112 PS 110 bhp 82 kW
2 door fixed-head coupé FR 3M 4085 cm3 112 PS 110 bhp 82 kW 1424 kg
2 door fixed-head coupé FR 3A 4085 cm3 112 PS 110 bhp 82 kW
2 door fixed-head coupé FR 3M 3683 cm3 106 PS 105 bhp 78 kW
2 door fixed-head coupé FR 3A 3683 cm3 106 PS 105 bhp 78 kW
2 door fixed-head coupé FR 3M 3683 cm3 106 PS 105 bhp 78 kW
2 door fixed-head coupé FR 3A 3683 cm3 106 PS 105 bhp 78 kW
2 door fixed-head coupé FR 3M 3683 cm3 106 PS 105 bhp 78 kW
2 door fixed-head coupé FR 3A 3683 cm3 106 PS 105 bhp 78 kW
2 door fixed-head coupé FR 3A 3791 cm3 106 PS 105 bhp 78 kW 1575 kg
2 door fixed-head coupé FR 3A 3791 cm3 106 PS 105 bhp 78 kW 1575 kg
Pontiac Le Mans Hardtop -
2 door fixed-head coupé FR 3M 3791 cm3 106 PS 105 bhp 78 kW 1616 kg
2 door fixed-head coupé FR 3M 3791 cm3 106 PS 105 bhp 78 kW 1616 kg
2 door fixed-head coupé FR 3A 3791 cm3 106 PS 105 bhp 78 kW
1975 Buick Regal Hardtop Coupé data
bodywork
Body type4/5 seater fixed-head coupé
Number of doors2
Designer
dimensions & weights
mminches
Wheelbase 2845 mm 112 inches
Track/tread (front) 1562 mm 61.5 inches
Track/tread (rear) 1542 mm 60.7 inches
Length 5385 mm 212 inches
Width 2007 mm 79 inches
Height 1354 mm 53.3 inches
Ground clearance
length:wheelbase ratio 1.89
Kerb weight 1755 kg 3869 lb
Weight distribution
fuel tank capacity 83 litres 18.3 UK Gal 21.9 US Gal
aerodynamics
Drag coefficient
Frontal area
CdA
engine
engine type naturally aspirated petrol
Engine manufacturer GM
Engine code
Cylinders V 6 in 90° vee
Capacity 3.8 litre
3791 cc
(231.341 cu in)
Bore × Stroke 96.52 × 86.36 mm
3.8 × 3.4 in
Bore/stroke ratio 1.12
Valve gear overhead valve (OHV)
2 valves per cylinder
12 valves in total
maximum power output
(net)
112 PS (110 bhp) (82 kW)
at 4000 rpm
Specific output
(net)
29 bhp/litre
0.48 bhp/cu in
maximum torque
(net)
237 Nm (175 ft·lb) (24.2 kgm)
at 2000 rpm
Specific torque
(net)
62.52 Nm/litre
0.76 ft·lb/cu3
Engine construction cast iron block & head
sump wet sumped
compression ratio 8:1
Fuel system 1 Rochestrer carburettor
bmep (brake mean effective pressure) 785.6 kPa (113.9 psi)
Maximum RPM
crankshaft bearings 4
Engine coolant Water
Unitary capacity 631.83 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 63.55 PS/tonne (1000 kg)
46.74 kW/tonne (1000 kg)
62.68 bhp/tonne (1000 kg)
0.03 bhp/lb
Weight-to-power ratio 21.4 kg/kW
35.74 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
turns lock-to-lock
Turning circle
Front suspension
Rear suspension
Wheel size front 6 x 15
Wheel size rear 6 x 15
Tyres front GR78-15
Tyres rear GR78-15
Brakes F/R VeDi/Dr
Front brake diameter 279 mm
Rear brake diameter
Braked area
Gearbox 3 speed manual
Top gear ratio 1
Final drive ratio 2.73
general
Carfolio.com ID339746
Production total
Model code J57
Model family 4A
RAC rating 34.7
Insurance classification No information available
Tax band No information available
1975 Buick Regal Hardtop Coupé added 2013-06-22.
Last modified 2013-06-22.