DazC, If when cruising the car gets upto fan on temp, the fans . . GO ON. . so cruising or not, the fans will come on and should do their job, OBVIOUSLY the cooler is blocking airflow, so the fans infront of the IC are not much use, which is why the fans are better situed inbetwen the rad and cooler, so when they come on, they blow against the rad, instead of the airflow that would normally cool it. .

so your substituting the airflow with 2 fans and the 2 fans on the IC will do fuck all roon ye