Is it really worth sending twice as much for a 4 row core radiator or will a new 3 row be enough for cooling a turbo-ed engine?

 

Depends on your driving habits. I drive my 78 extremely hard. But my 3 core does fine, i dont run a turbo but i am always hovering around 6000-6500 RPM,s on my motor. The hottest I ahve gotten it up to was 210. But the outside temp was over 105 and I was going down I-80 between Reno and Salt lake City. I did however outrun the mustang GT that thought he could hang with me.

Gotta get my Z's