Re: Please help, windsor running hot.
First thing I would suggest is put a working thermostat back in.
The reason that it's in there in the first place is to interrupt the flow of coolant just long enough for the fluid in the radiator to be cooled.
Remember that RPM is camshaft rotation, the crank spins 2 times faster, and most water pump pullies are driven 1 to 1 with the crank, so a 6K the pump is spinning at 12K, hence the coolant will circulate at mega-litres per second, and without that interruption it will never get a chance to cool off.
Heat trapped under the hood/bonnet would just snowball the problem when you are giving it a bit, consider some way of letting the heat out.
Short of cutting vents into the lid, try removing the seal that runs across the back edge and see if that helps.
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