Well,

as you are aware i have a pretty powerfull A series engine in my 850 and since the fitting of a 4 core radiator it has been much better and ran at around 90 to 95 degrees on a normal day around 25 to 30 degrees.

since the new engine build it was runnign a little warmer as expected due to a allot more HP and tighter engine as its all new.

I have been running an external thermo fan in the inner guard grill for some time but only mounted it with cable ties and not as close to the rad as it should have been to get maximum effect of the fan (it should be fitted flush or as close as possible to the core/fins)

so i decided to create a bit of a plenumn so the hot air cannot escape and must be drawn through the fan and not around it just like the shroud on the engien side of the radiator.

see pics below and let me know your thoughts

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100% Pure A Series Turbo
Morris - The Original RedBull Racing

That should increase it's efficiency considerably.
Nice job

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Too many cars, and too little time.

Radiator bling

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SooperDooperMiniCooperExpertEngineering

All garage work involves equal measures of enthusiasm, ingenuity and a fair degree of irresponsibility.

Somewhat similar to what I did,
except I fixed the radiator to the firewall using a custom alloy shroud:

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Too many cars, and too little time.

I like it. If you look at the aussie desert cooler alloy rads, he makes a shroud exactly the same. All sheet design with just the hole for the size of the thermo.

Nice work.

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Cheap, Fast, Reliable. Choose two.

yeah just the same idea i had, i think it will make a dramatic change, motor should be running this sunday so i will soon see

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100% Pure A Series Turbo
Morris - The Original RedBull Racing

is that a KENLOW fan Grant? looks the same as the one i have sitting on my Rad to go in the 1360

Nar... Just looks like a Davies-Craig 9" to me...

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Cheap, Fast, Reliable. Choose two.

Yes very nice job , should make a big improvement in cooling , the real secret though is to get the hot air out of the engine bay once its drawn through the radiator , which is a bit hard with a mini . A really good method is to have louvres in the bonnet , but this may spoil the look of the car , depends what you like I guess . I had a radiator business for many years and we did dozens of one off special radiators for modified road cars and racing cars and found that having the louvres in the bonnet increased the cooling dramatically , as the hot air does need somewhere to go. Never did a mini though , but principles are the same ......cheeers

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1965 Morris 850
1966 Morris Mini Minor
1967 Morris Cooper 'S'
1977 Leyland LS

What brand of damper is that hiding under there

Looks like a noice one...

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Cheap, Fast, Reliable. Choose two.