radiator issue

[kinderrr]

Upgrading my Caterham k engine 1.6 115 to arund 145 hp. Need new cooling since it has always run hot. Now do i need the Aluminium Radiator with 3 core or can i settle for the single core? oh and do i need an oil cooler as well? going 80% road and 20% track. any help will do thank you
Michael

[curley]

A Standard radiator will be fine , that's all the factory fitted to a K R400 .
You won't need an oil cooler .

[se7en-up!]

Change your thermostat, not your radiator