how do u break in the T maxx trx 2.5 engine and a rustler trx 2.5 engine
 

what do you do to break in your engine, run the engine for five tanks in the air or on flat land does this mean that before I change parts in the motor that I should break it in what ?

how do u break in the T maxx trx 2.5 engine and a rustler trx 2.5 engine
 

I'm a little confused here. Is this a brand new engine, or do you just have new parts in it? Not that the break in process is different, I'm just wondering. Here's how to break in your engine:
1.)Leave all needle settings at the factory pre-sets
2.)start it up and run the car in a large oval. Give NO MORE than 1/2 throttle on the straights and none on turns
3.)do this for a total of 3 tanks
4.)After this, close the high speed an hour increment and do the same thing, but on the straight give very short burts of full
5.)After this you tune your engine