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Years back I had a TA22 with a worked 2T. My mate had an identical car except his had a 2TG. He could always pull away from me on the front straight at Calder. Until one day I was pulling away from him. Drove him crazy as he couldn’t work out what new modification I had done. All I had done was removed the plastic fan during the race meeting. End of the day, popped it back on and drove home.

Hi Gavin, No offense, but agree with Pete totally. Even the standard plastic fan, reduces power from the engine, that should be going to your back wheels. Bear in mind what the fan is for . . . It is there to force air over the engine, when your Rolla is not moving forward on the road, when normally, the force of the air passing over the engine, without fan, is totally sufficient to completely keep the engine at normal operating temperatures. It appears you have a large capacity aluminium radiator, which will be far more efficent at remove engine heat that the original factory radiator, from bygone years. My honest suggestion, would be to put the water pump pulley back on, & dice the fan you have there altogether. Then add a simple electic fan to the rear of the radiator, which is easily accomplised, as the electric fans come with all mounting hardware usually. Check ebay, & you'll find they are freely available, to suit the aluminium radiator dimension, you have fitted.. The fan is then activated by an additional water temp sensor thermostat, that switches the fan on, once the coolant temp, rises above 90-95 deg C. I put an electric fan on my 5K & 4ks, & I have a light on the dash, which indicates when the fan has been automatically switched on. Without a word of a lie, the fan, rarely comes on. Ocassionally in hot weather, it city traffic, waiting at the lights, it will be activated for a couple of minutes, but as soon as you drive off, within 1-30 sec. it turns off. When I first fitted it, after having driven for years with an engine drive fan, it was noticeable, how much more power was available to drive the car. I'm sure others on this forum, will testify to what I am advising you. Keep us updated. Love the detail & work you are putting into this project. Cheers Banjo