I dunno..when I did my b16a swap I ran my stock d15 radiator for a while, and one day noticed it started running hot as fawk..I had to drive all the time with the heater runnin full blast...switched over to the Teggy radiator, and run cool as a cucumber.

 

well i fixed it. i got a new water pump and swaped it out and bleed " burped" the system. i runs great now. thanks for the help guys.