i have a b16a, got it running but at normal runnig temp, it seems like its not getting coolant from the bottom hose of the radiator. check the coolant temp switch, replace the thermostat , and check the water pump. and also i'm using a fluidyn radiator.

 

my guess is air in your hoses? i usually turn my car on with radiator cap off and squeeze the hoses till i dont c anymore air bubbles .