This Spitfire 4 (or Mk1, as they are also called these later days) is prepared for historic racing according to FIA Appendix K using the homologation sheet No. 165 and has also international FIA identification papers required for the FIA events. During the years it has evolved little by little to a "full race" -car, and finally in the year 2003 its license plates were returned to the goverment to avoid paying the annual car tax. It was manufactured in 1964 and according to the registration papers the original type of it is "HT Coupe" which means that it was fitted with a steel hard top as new. Even if being a "Historic" race car, this Spitfire is still under a constant development and now after 11 racing seasons there is still always something that can be done better. We reserve the rights to all modifications (Within the FIA Appendix K of course...).

The following presentation shows how it appeared in the beginning of the season 2003:

Power Plant

The engine uses still the original 1147cc cylinder block with standard capacity. The modifications include:

• Genuine SAH Tuning Stage II 8-port cylinder head, gas flowed, double valve springs etc. This head is a heart of the whole car and a real rarity, as only 100 (?) of them were ever made. According to the latest information, only about 15 of them still exists. This one was offered for sale in Australia, and now continues its life on this edge of the globe...

• Twin Weber DCOE 40 carburettors with K&N filters
• Tubular exhaust manifold
• Camshaft reground to the KentCams 264 profile
• Double valve springs
• Lightened, polished and balanced bottom end, nitrided crank
• Forged pistons, manufactured to given dimensions by JE
• Skoda (!) cylinder liners to stay within the original capacity class, under 1150cc
• Lucas alternator
• Oil cooler added
• Baffled sump
• Oil catch tank and Spitfire 1500 rocker cover. Thanks to Jon Wolfe for sending it

Usable rev range of the engine is around 5500 - 8000 rpm, althoug I use to rev it up to 8500 when really needed. The power output is unknown as it has never been dynoed, but I would estimate that something like 110hp is a realistic value.

Office

• 6-point roll cage of own design (tested summer 2000)
• Corbeau Pro Race seat
• Willans 3" 6-point harness
• 3kg extinguisher
• Main voltage cut-off switch
• Fire walls
• Genuine Springalex steering wheel
• Oil pressure gauge and a genuine Smiths rev counter

Luggage Department

• 20l ATL fuel cell in a self made aluminum container
• Electric fuel pump
• Catch tank for diff oil

Suspension and axles

• 480lbs front springs
• Mk4 front anti-roll bar
• Modified rear spring (secret mixture of leaves from different sources, basic operation as standard)
• Specially made rear halfshafts and output flanges (from better materials trying to avoid further breakages...)
• Gazmatic shocks
• Some harder bushes here and there

Exterior

• Side air vents according to works cars
• Front grille according to works rally cars
• Le Mans style glassfibre front bumper overriders
• Polycarbonate rear screen
• Bonnet and bootlid secured by leather straps, which were originally designed for dogs...
• Towing points front and rear (sometimes even needed)
• Paint scheme inspired by Le Mans Spitfires, not any exact copy though
• Otherwise all original if few sq. meters of replaced sheet steel is not counted...