Pinion gear mess (need help)

[Mr. Crawley EC]

The thing is I have my tz v2.5 with an 88 spour (48p)

I bought a castle slate 1900kv and the 18t pinion doesn’t provide enough wheelsoeed.

The motor mount will not allow me to grow too much in the pinion gear.

I also have a 3800kv slate that es too fast and I would need a really small pinion for it to work with torque and wheelspeed. (Also it has 5mm shaft which madres it harder to find small pinions.

And finally I have a 2200kv puller pro stubby.

My mind is blowing up ando Indint want to spend a cent until I really know what to do.

PLEASE HELP!

 

[mikemcE]

First off the Esc is most important.
I run everything from that 1900 slate to a 3500 PullerPro. Different batteries give different responses, the slate and 2200 stubby rock on 4s, the 3800 will be almost right for 2s.
So what esc are we talking about?


Hang up and Drive

 

[Mr. Crawley EC]

First off the Esc is most important.
I run everything from that 1900 slate to a 3500 PullerPro. Different batteries give different responses, the slate and 2200 stubby rock on 4s, the 3800 will be almost right for 2s.
So what esc are we talking about?


Hang up and Drive

I run a Mamba X in that rig. All my batteries are 3s. I have 3 spektrum 2200 mah 30c and 2 protek 4100mah 120c.

 

[mikemcE]

Look up John Holmes video on setting io a crawler esc curve. You should be able to creep that 1900 or 2200 on 3s with a throttle curve.


Hang up and Drive

 

[mewalsh100]

Great feedback Mike.

Mr. Crawley, you might be able to get to a better ratio if you were willing to go 32p with the spur and pinion. Not sure what your overall gearing or final drive is, but a good rule of thumb for pinion / spur is anywhere from 5.0:1.0 to 6.2:1:0. For example, a 32p 57t spur with a 32p 10t pinion would yield you a 5.7:1.0 spur/pinion ratio.