Motor Help

Got a buddy's esc and all is fine ran the buggy for about 15 minutes with no problems other than seperating a tire from the wheel. I am a little concerned about the temps. Battery true rc 14.8 8000mah lipo 90 degrees, Mamba maxx esc 146.2degrees and neu 1512 2d 120 degrees. I have the novak capacitor on the speed control, but it looks like I need a fan for the esc. The car is geared 14 tooh pinion and 47 tooth spur. Very fast by the way.