I recently upgraded my 9 year old sons 2wd slash with the Velineon ESC and motor. He wanted to go fast so I geared it 23/86 and we bought a 3s 5400mAH LiPo battery.
He loves it. I didn't realize what I was getting into! The power going through the rear end is incredible.
First it stripped a spur gear. I did not have the pinion tight enough. The allan key that comes with the kit is too small to get enough tork. So I put on a new pinion and got a proper tool. Ten minutes later the spur gear stripped again! Took it to the hobby store and they said it looked like a rock got in there. So put on another pinion gear and a sealed rpm gear cover. Ten minutes one of a brand new set of rear tires just ripped apart! Reading up it seems I need to tape the insides of the rear tires with masking tape?
The motor also seems a tad too hot, so I was thinking of gearing down but then I'm thinking I don't want more low end tork on the rear end or I'll put more strain on the tires.
I never had these issues with the XL-5. Does anyone have some tips, so that my son can have fun and I don't have to be fixing it every ten minutes, and have fun driving my slash?