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TR parts and Triumph parts, TR bits, Triumph Car Spares and accessories are available for TR2, TR3, TR3A, TR4, TR4A, TR5, TR6, TR7, TR8, Spitfire and Stag and other TR models are available from British car spares and parts company LBCarCo.

Triumph Spitfire - Stage One Engine Kit

I am Looking for any information and the specificatios for whatwas called a "Stage One" Triumph Spitfire factory engine kit.

Apparently,they produced a 1296cc engine with a modified cylinder head, exhaust and carbs which increased the horsepower by some 30%!

It is documented in historical books on Spitfires. It originally was an option of about 175 pounds which would be a lot when the car only sold for 500.

Can anyone help of give some possible suggestions where to look.
Dean Smart

Hi Dean,

According to "Triumph Spitfire and GT6" by Graham Robson, the Stage 1 included an 8 port head with a 10.5:1 compression ratio, and different manifolds and camshaft timing. It's unclear in the book what kind of carburetion was used. It was an option for the 1147cc MKI producing 80 bhp and costing a little over 92 (pounds).

There was also a Stage 2 with a 10.5:1 ratio, a head being developed for the '65 1300 saloon, new manifolds, dual twin-choke Weber 40 DCOE's and a different camshaft. It supposedly supplied 90 bhp and had a top speed of 107 mph with 0-60 in 10.6 sec.

Travis

This thread was discussed between 10/02/2001 and 11/03/2001

Triumph Spitfire index

This thread is from the archive. The Live Triumph Spitfire BBS is active now.