Not happy with Brushless Jato :(

well ur batteries are just about the most crappy pack u could have, so get some ib or gp batts and there will be a big difference

and then to reach youre insane speed u will have to use a 3 cell lipo and the 5700kv mm and then u should be good

[BrianG]

@fiero_silva: I think I also posted a response over at the Traxxas forums.

You can gear down by going with a smaller pinion or larger spur. If you divide the tooth count of the spur by the pinion, you get a ratio. Larger ratios are lower geared and lower ratios are geared taller.

According to my calculations, you should be able to reach ~50mph in first gear and 66mph in second with 6 cells, and no tire ballooning. So, something is definitely wrong.

Generally, it is advisable to use a lower KV motor and higher voltage. The current requirement would be less. Some vehicles are difficult to use anything more than 6 cells, but since the Jato is custom, it shouldn't be difficult to use 3s-4s.

And yes, battery quality is a big factor in performance. So, get high quality GP cells or good lipos capable of ~100A continuous for best results.

Originally Posted by BrianG

According to my calculations, you should be able to reach ~50mph in first gear and 66mph in second with 6 cells, and no tire ballooning. So, something is definitely wrong.

Where are you getting those numbers from? Using the link in your sig, I'm getting 55mph as top speed in 2nd gear with my current setup. I think the only thing that could be different is tire diameter... I don't have my truck in front of me, so I used 3.5".... What are you using?

[BrianG]

4.2" tire. Maybe that's not right...