75 HP Bristol engine.
Well, my 400 instruction manual suggests that the "touring engine"
produced 75 bhp at 4500rpm and was equipped with a single dual port solex
carburetter, whilst the sports engine (with special camshaft) produced 85
bhp and had three downdraught SU`s. This sports engine is usually referred
to as the 85A. The engine and was then fitted with three Solex carbs,
became the 85C and was used in the 401. The single Solex was fitted to a
special manifold connected to the water circulation system.
John P
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