Under sustained high RPM, this can force the fluid past the filler cap, out the overflow tube, and into the recovery tank even at normal operating temperatures.
A higher pressure cap keeps the fluid in the cooling system, not the recovery tank. Features: 1 wide core tubes, No Epoxies,100% TIG Welded, 16 Fins per inch, Temperature Sensor Provision, Air Pressure Tested,Billet Filler Neck, Cross Flow Design, . Our radiators use an aluminum angle for the mounting flange.From there the heat is transferred to the fins of the radiator.