hotbodies Ve8 pics

Hi, I got my ve8 at the end of last year and have only done about 2 meets or 12 races but all is going well and havent managed to brake any thing yet.
I am running a MMM 2600kv on 4s setup and i live in the tropics where most of the time we race its between 30c/86f and can get down to 16c/60f but my motor temps run around 80c/176f and that was on a 18/50 gearing. Will going up help or down in gearing help.