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Triumph Spitfire Mk IV

Overview

Produced: 1970-1974, 70021 produced.
Types: Sports,2 doors,2 seats
1972 Triumph Spitfire
By 1970 the Triumph range of cars all featured a "family look" make-over from the Italian stylist Michelotti , this covered the 2000/2500, Stag and now the Spitfire models. The new look Spitfire became known as the Mk IV and featured a new front end and a squarer tail style which made the car look slightly more aggressive and grown-up. It went on sale in the UK at the end of 1970 with a base price of £735

The engine continued at 1296 cc, but in 1973 was modified with larger big-end bearings to rationalize production with the TR6 2.5 litre engines, which somewhat decreased its "revvy" nature; there was some detuning, to meet new emissions laws, which resulted in the new car being a little tamer than the Mark III. Peak power was reduced to 63 bhp (47 kW) at 6000 rpm, and the peak torque was now 69 ft·lb (94 N·m) at 3500 rpm. With the overall weight also increasing to 1,717 lb (779 kg) the performance dropped as a consequence, 0 to 60 mph (97 km/h) now being achieved in 16.2 seconds and the top speed reducing to 90 mph (140 km/h). The overall fuel economy also dipped to 32mpg The gearbox gained synchromesh on its bottom gear.

An all-new hardtop was also available, with rear quarter-lights and a flatter rear screen. 

The MK IV stayed in production until the more powerful 1500 arrived in 1974.

Buyers Guide Triumph Spitfire (1962-1980) featured in Practical Classics September 2009 – available from our sister site Bookbase. Click here to view.
Source: Motorbase

Engines

CapacityConfigModelBore/StrokeCR
1296ccS4 OHVStandard/Triumph S4 OHV73.7mm x 76mm9

Fuel System

TypeNumberCapacityComment
SU 1.25inch2

Drivetrain and Suspension

DrivetrainSteeringFront SuspensionRear Suspension
F/RRack-and-pinionIndependent/Coil SpringsIndependent/Transverse leaf spring

Performance

Top Speed0-60SQMMPGEngine PwrComment
93 mph15.9 s0 s0 mpg0 bhp 0

Brakes

FrontRearComment
DiscDrum

Dimensions

WheelbaseFront TrackRear TrackLengthWidthWeight (CWT)Turning Circle
6' 11"4' 1"12' 6"4' 10" 0 (15)0' 0"

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