smirk-racing 253 Posted September 5, 2022 Hi All, What motors are you using in your XV-02s? I have a castle 1406 5700kv in mine. Top speed is great but I'm find the set-up to be too powerful (using the recommended 2s lipo). I'll dial this back in the ESC but wanted to know what you all were using. I'm also finding the chassis a bit twitchy - if it gets unsettled or if I turn to correct if often whips around. Any thoughts on tuning this out? Share this post Link to post Share on other sites
Juls1 1661 Posted September 5, 2022 I’m running 15.5T tamiya tblm-02s. Geared properly it’s more than enough for rally use. It’s around the 2800kv mark at 0 timing but adding timing increases that quite a bit, I run around the 6.5-7 gear ratio wise. (26-28t pinion on the xv-02) if you advance the timing further than the stock adjustability (using the esc timing adjustability if you have it) then you’d need to start gearing a bit higher if things are getting hot. 1 Share this post Link to post Share on other sites
smirk-racing 253 Posted September 5, 2022 Thanks @Juls1. I am using the 19t pinion, so if I take out the difference in pinions, you're at the ~4000kv mark compared to me, and if you're adding timing, then you might be getting close to 5000kv. I think I'll dial down the top speed and also dial down the torque. Between the two the vehicle should become easier to control. Thanks! Share this post Link to post Share on other sites
Smirrors 186 Posted September 6, 2022 I am running a Hobbywing 13.5T with 27T pinion. Plenty of power for rally (maybe a little too much) and nice enough on the track. Steering on the XV02 is very good but this isn't necessarily a good thing when it comes to rally as you can easily over due it. Takes some practice to get use to the amount of inputs Share this post Link to post Share on other sites
Juhunio 6830 Posted September 6, 2022 On 9/5/2022 at 3:25 PM, Juls1 said: I’m running 15.5T tamiya tblm-02s. Geared properly it’s more than enough for rally use. It’s around the 2800kv mark at 0 timing but adding timing increases that quite a bit, I run around the 6.5-7 gear ratio wise. (26-28t pinion on the xv-02) if you advance the timing further than the stock adjustability (using the esc timing adjustability if you have it) then you’d need to start gearing a bit higher if things are getting hot. So, in brushed terms around 20-22,000rpm would be about right then? Share this post Link to post Share on other sites
smirk-racing 253 Posted October 7, 2022 Well, 2800kv on 2s is nominally 23,500 rpm, but sounds like @Juls1 is also using timing and a bigger pinion than stock. So, 20k rpm would be on the low side compared to his set-up. What kind of top speeds are people gearing for on pavement (just as a reference)? Share this post Link to post Share on other sites