i have a rb25det in my s13. isis aluminum radiator. dual isis 12" e fans. 300zx 170* tstat. and my prosport water temp gauge says it is 220* while driving normal.
i know thats way hotter than it should be but i dont know why. i have flushed the radiator and engine 5 times over the past couple months and it has made no difference. im using a 50/50 prestone antifreeze water mix. system has also been properly burped after each flush. and i have a circuit sports surge tank/swirl pot aswell to get any excess air out.
so im basically looking for input as to what could be the cause. or if anybody elses rb runs this hot. temperature has also been double checked with a laser temp gun.
thanks