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Originally Posted by AAngel
I have to correct what I said above. The pinion does't last long when used with a steel spur gear.
The motor is a 7XL. It's about a 2150kv motor. My gearing with the stock tires is 12/46. On 14/46 it was just too stupid on the track.
I did run it on the track yesterday, and I made a few observations. The first is that the steering sucks. I replaced the ackerman arm (the thingy that connects the right to the left) with a tie rod ball end setup and it tightened things up a bit, but it's still not great. The second is that I was having a problem eating spurs. I went through four last night. The problem is one of two things. It is either a lack of rock guards and things are flying up into the gears or the chassis flex is somehow causing the gears to mash. I don't know how the chassis flex could be affecting it because my motor mount is mounted to the center diff mount, but I'm not ruling it out. I'm going to install some rock guards and see what happens. The thing is that I haven't actually found anything stuck in the gears. Just to play it safe, I ordered the heavy duty chassis.
The last thing I noticed is that the stock tires suck too. They are fine for bashing, but leave a lot to be desired on the track. I have some holeshots and bow ties coming in and will convert to 17mm hexes.
On the positive side, I think that the truggy will wind up handling better than a buggy. It takes turns at higher speeds and is more forgiving when you don't hit the turns or jumps quite right.
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Nice truck
What did you use for motor mount? On this truggy is it mod1 pitch?