9920/9L Question

[Mike_D]

Hey everyone i am just wondering what kind of gearing i should use on my e-maxx. I'm using a stock chassis with a gorillamaxx single speed, cvd's all around, bowties on 40's, and geared 72/16 with 12 gp's, and also a ubec. I went out for my first run and the 9920 was barely warm but the 9L was 180 degrees. Should i be gearing different. Btw mike the fan is great.