Type
2S FHC
Number of doors
2
Wheelbase
2160 mm 85 in
Track: Front
1410 mm 55.5 in
Track: Rear
1410 mm 55.5 in
Length
4067 mm 160.1 in
Width
1681 mm 66.2 in
Height
1267 mm 49.9 in
Length:wheelbase ratio
1.88
Ground clearance
90 mm 3.5 in
Kerb weight
1048 kg 2310 lb
Fuel capacity
55 litres 12.1 UK Gal 14.5 US Gal
Bore
90.30 mm
Cylinders
S-4
Displacement
2 litre1998 cc(121.925 cu in)
Compression ratio
9.25:1
Fuel system
2 SU carbs
Maximum power(DIN)
106.5 PS (105.0 bhp) (78.3 kW)@ 5500 rpm
Specific output
52.6 bhp/litre0.86 bhp/cu in
Maximum torque(DIN)
161.0 Nm (119 ft?�·lb) (16.4 kgm)@ 3500 rpm
bmep
1012.6 kPa (146.9 psi)
Specific torque
80.58 Nm/litre
Manufacturer
Triumph
Main bearings
5
Coolant
Water
Bore/stroke ratio
1.16
Unitary capacity
499.5 cc/cylinder
Aspiration
Normal
Compressor type
N/A
Intercooler
None
Catalytic converter
N
Power-to-weight
100.19 bhp/ton
Engine location
Front
Engine alignment
Longitudinal
Drive
RWD
Steering
rack & pinion
Turns lock-to-lock
3.870
Suspension
front I.MS.LW.ARB.
Brakes F/R
Di/Dr-S
Transmission
5M
Top gear ratio
0.83
Final drive ratio
3.90
RAC rating
20.2
year
1978
Triumph TR7 5-speed box, hybrid drive shaft made of TR7 and other components, TR7 rear axle with SD1 3.08:1 ratio. The axle needs to be shortened some 5 inches.
Quaife ATB Helical LSD differential for Triumph TR7 5-speed is suitable for Triumph TR7 models with 5-speed gearbox.
The Triumph TR7 5-speed gearbox is ideal and you can also use a SD1 5-speed gearbox which are based on the same design but apparently some of them are slightly