I am actually looking into engine temps myself for my gtr , im going to put air con into it (as i bought it without it) and am really unsure what to do fan wise i will be running a pwr 43mm radiator , would it be best just to keep the engine fan and get the air con fan wired so it switches on when the aircon does or would a single or twin thermo keep it cooler instead of the engine fan. i am wanting something that will be reliable and keep temps down?