This is all wrong. Most here don't understand how a cooling system works. A lot is trial and error, but some type of a restriction is needed for most systems. You have to slow down the flow so it stays in the radiator long enough to dissipate the heat. If it just flows threw it cant pull the heat out of the water. if the fans and water are efficient for the application then the radiator is not pulling enough heat out and you would need a more efficient core. I am not a big fan of electric water pumps and fans for for street use. I find that a good belt driven pump and clutch fan shroud and good rad is all that is needed for street.
Sorry, but you are giving out bad information. The last thing you want in a cooling system is a flow restriction. Keeping the coolant in the radiator longer also leaves the coolant in the block and heads longer, where it gets hotter. Now the radiator has to remove more heat from the coolant. Do we restrict it more, and let more heat into the coolant?
As said above, it's either an airflow issue or a coolant flow issue.
