Originally Posted by ckmerc
Great advice...thx. Any specific tricks with installation ?
each ESC has its own calibration method (some can self calibrate) so look to the manual for that info.
buy a $20 temp gun. It can save you from having to buy another esc/motor. Since each truck's gearing is different, and there are motors of different KV (rpm) rating it is impossible to say for sure if "X" size pinion gear will work for you. A temp gun will tell you real quick if you need to gear up/down or can run what you have. If you can run your truck for a full 2s 5000mah lipo pack and your motor/esc don't get over 130 then you have a gearing that is providing good speed without risk of overheating.
the rest is the same as your stock system....make sure esc is secure....make sure all wires are run safely so they wont get hit/rubbed/snagged.
I have found that motors in the 3000-4000kv range work best for offroad 1/10 trucks. while you can run higher kv motors, I feel that the 3-4k range makes gearing the motors easier and they generally will run cooler as they will have a bit more torque.
right now on ebay you can get a team associated sc700 esc for $53 shipped (new) that is dirt cheap for a name brand 3s capable esc. the EZrun/hobbywing systems work well and are fairly easy on the wallet. they also have good range of programmable settings.
you can get away with as small as a 35amp ESC for your trucks. a esc in the 60amp range is a bit better tho. Just depends on your desire for speed and your budget.
I assume you got your rustler new? if it is an xl5 model then you should be set as the trans should have metal gears. if you have an older xl5 or even xl1 model you will need to upgrade the trans gears to handle the extra power.