Medusa Afterburner heat issues

[tha5150]

Medusa 36x70mm 2300Kv V2 Afterburner Brushless Motor 5mm Shaft was bought brand new 1 month ago. using this in conjunction with a MMM on my Hyper 8 with 14t pinion and 46t spur. i also have a 16t pinion. zippy 4s 5000mah 25c

ok, those are the peices i am using and generating ALOT of heat. i had the 14t pinion on yesterday, went to the local track and was exceeding 200*f within 5 minutes. if i use the 16t pinion it is roughly the same, maybe a bit less. i was trying to use the 14t with alot less woot on straights and turns. basically i was keeping my throttle less than 1/2 the entire time and was able to run for 8 minutes before the heat came back. i dont know what to do. i have the MOD 1 14t and 16t pinion from RCM aswell as the spurs are from RCM. the lipo was fully charged and would generate heat around 120-130, MMM was around 110 and you know they motor temps..

why is this happening? you would think the 16t pinion would generate less heat due to less spinning of the motor but you guys here told me to try out the 14t pinion and it would cool it down a bit. which didnt work. i am only trying to fix this, not point fingers. we are all only here to help.

anyways, someone at the track said that there is a fine line between the gears doing all the work and more heat is built on the motor and the motor building less heat and the tranny does less work. or vica versa or whatever. i am not that knowledgable on these things quite yes, hense why i am on here wrtiting this.

who wants to help!!>??? how can i keep the heat down? should i use the 16t with a 42t spur maybe? i dont know.. you guys tell me. thanks in advance as always.