Savage flux 4s and 25/44
 

With 6s you can run 25/44 but with 4s it is possible some one have try ?

Thank !

I have try to install optional 25 tooth with stock 44 spur gear and the motor side robe on battery box too tight impossible to install.

To answer your first question you can definately gear it up by using a larger pinion. However it will put more load on the motor and the batteries. So if you do gear up with a larger pinion keep an eye on the temperatures of the motor and the batteries.

HPI really need to issue a new manual indicating how to correctly regear the flux... Nothing special: larger pinion = more load and more heat...

I have run this weekend with 25/44 and 4S and the temps was 100F batterie, 86F motor and 118 esc after 20 min run.

That are good temps!

What was the torque that the motor has now?

Greetz,
Joram

the motor are very powerful I don't see difference with torque 25/44 versus 20/44

What was the ambient temp?

ambient temp was 50F