Im running a D16Y7 with Z6 head hoping to make 250-270whp.
Running a stock d16z6 radiator(half rad).

I know id notice the temp go up when the build is finished and car is running, but should I go out and grab a full rad/bigger one?
It would make things easier because of my H22 build, I had a full rad meaning I had to remove and weld the brackets down lower.

 

i have a d15 with similar set up pretty low boost. my stock one seems to be okay and its half rotten LMOA!!!! most people just get a aluminum rad i suggest a mishimoto from ebay u wont have any problems.