petefj40 wrote:DieselBoy wrote:You will find that as the water in the cooling system is under pressure, it will circulate just as it would with the standard system provided there are no air locks in the system

I don't pretend to know a lot about cooling issues. I'm having my own problems with cooling my own setup. (don't mean to hijack your thread nib)
I've been told that if the radiator is at greater distance than stock away from the block the heated water/cooler water needs to move quicker to keep it at stock temp. But then I know if you have to much circulation the water doesn't get enough time to cool causing it to actually heat up.

I'm no expert either, but i have questioned a few people on it when i was looking at rear mouting the rad in the LJ.
You got to think of fluid mechanics. The basic principle is that a fluid can't be compressed, so when its under pressure in the rad lines, the impeller on the water pump is moving the water like it is one big solid mass. Its pumping the exact same volume of fluid around the cooling system as it was designed to.
It obviously takes longer for the warm water to reach the radiator but there is no delay in the cool water reaching the block, and as the thermostat is located in on the block, and that controlls the engine temp, there is no room for discrepancy in opperating temps.
THe engine shouldn't take any longer to reach opperating temp as it is controlled by the thermostat, and as soon as it reaches opperating temp, the termostat will open and the cool water in the lines will reach teh block just as it would with the standard system.
Thats the logic that was passed onto me anyways. Makes sense i reckon
