1. gear down to a 14-15 tooth the losi motors do rev very well so can afford to be geared down a little
2. cut a hole/scoop above the fan to allow the fan to pull air through to the speedo as the lazers shell is so good at hugging the car that it struggles to get air through it so open up all air vents and trim the rear of the shell to allow air out as well. if you have a steady flow of air through the car it will run a lot cooler
hth
ps just seen your last post. leave gearing alone and just get air flow through the car
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Nathan Ralls HPI, Custom Blitz, www.piraterc.com mr-o foams
woop woop racing officialy keeping team toe out inline 
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