I wrote abit about the fan in a recent club newsletter. I think there is potential to reduce noise / increase power. An electric solution probably is the way to go (assume you have done alternator mod) but remember that you have to overcome the fact you are decreasing overall efficiency by converting motion to electricityto motion.

Amphicar engineers spoke to Triumph people a lot aboutoverheating and did lots of testing to be ready for theFlorida launch event in 61/62. I think as a consequence the standard fan (which is much bigger than the Triumph item) overcools the engine. Also the Triumph engines each have a "temperature personality" and some will run hot - or cool - no matter what you do.

There are electricwater pumps available (Google triumph spitfire electric water pump ) and with an electric fan that could work well but the key is running the car as standard first and measuring from lots of temperature sensors and then seeing if you can achieve same level of cooling from a quieter fan. Also remember that engine coolant temp is just a small part -the fan has to throw airall the way to the underseat area to cool the transmission oil.

If you use Amsoil you could possibly risk running the transmission a little hotter - of course in theory you could fit an oil cooler to the transmission but that is not easy and what do you do with the radiator for that cooler. It's about this stage I normally decide it's all too difficult and keep it standard - or do what John Fhas done on his1300, bigger pulley and different fan.

DavidC





        
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