Been modifying and racing this truck since February. Went through a ton of parts, but this little baby taught me a lot. No need to make it any faster for off-road purposes. Ran a speed test this evening on gravel. Here's a few pics.
I've won a couple and have been in the top 3 for the last couple weeks. Higher end race trucks are definitely better suited mostly for their lower center of gravity. I'm committed to finishing the season with this truck. I tweak something different almost every week. This truck has taught me a ton about race tuning and I have a blast. People are amazed when they walk up and ask what I'm running and I tell them it's an ECX Amp. It's made me a much better driver.
Still stock shocks, but I use associated t4 spring sets. They give the truck a slightly lower ride height. I had hot racing driveshafts on it, but took them off and rolled the dice with another set of stock plastic. I had too high a gearing and the HR driveshafts were out of ballance under throttle causing a weird vibration and binding in the transmission. It was even causing the motor and esc to run hot. I took them off and it went away.
Check the wheel bearings, they don't last long with that much motor. You can tighten up the camber links if it's not the bearings. I played with adding washers, but it didn't help much. Rpm makes a rear hub that allows you to use a bigger bearing. I think that would help the most.
I have the hot racing aluminum hubs on my amp and they are great, but in hindsight and after changing 5 sets of rear bearings this Summer I think the rpm hub with the bigger bearings is a good idea. I started buying bulk bearings now that we have 2 amps and a circuit. Dirt and gravel is hard on them.
Start with turning the punch down on the esc. You can also turn the throttle end point or dual rate of the throttle down on the remote. I turn my dual rate down to 75% when I'm racing on a dry track. It's fun to open it up when there's room, but it's useless on the track.
I don't know what radio you're running, but I can also adjust the exponential of the throttle. I put it at -25% on the throttle (channel 2). That takes some speed out of the beginning of the trigger and puts it at the end with a full squeeze. Fun stuff!
What?!? how do you get 60?? have you switched out the gearing or are you just running a 3s lipo? I have stock gearing and I can get up to 35 on 2S
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