Are Zippy Lipos safe with a Castle MMM Speedy?

[lincpimp]

Originally Posted by fastbaja5b

Ok so I understand this yet here in Australia they are being told that ESC's are blowing as they are running the 20t pinion in a flux and not the 25t for 6s? I mean WTF? By your logic I should go down to a 14-15 pinion to lower the amps, by their logic I'll blow everything up!

What is increasingly frustrating is the lack of response to my direct questions on this matter by email to castle creations, there are more and more savage flux - ESC go boom - videos coming onto You Tube, yet I can't get any clarification on this matter, just a lot of theorising.

You can run smaller pinions, but you may find the motor undergeared, and it may run warm because of that. Otherwise it should be fine. If I were to buy a savage flux I would run 5s lipo and regear it to do around 42-45mph. That would most likely mean dropping 2 teeth on the pinion to a 23t. You can run it however you want, just take temps regularly and you will see what is not working. If you plan to run 6s, I would gear down a few teeth. Then keep an eye on the batts and if they get too hot you will need to drop a few more teeth. A MT on 6s that is geared for more than 55mph is generally a handful. That is why most of us gear for 45mph or so.

[skellyo]

Originally Posted by lincpimp

You can run smaller pinions, but you may find the motor undergeared, and it may run warm because of that. Otherwise it should be fine. If I were to buy a savage flux I would run 5s lipo and regear it to do around 42-45mph. That would most likely mean dropping 2 teeth on the pinion to a 23t. You can run it however you want, just take temps regularly and you will see what is not working. If you plan to run 6s, I would gear down a few teeth. Then keep an eye on the batts and if they get too hot you will need to drop a few more teeth. A MT on 6s that is geared for more than 55mph is generally a handful. That is why most of us gear for 45mph or so.

The Flux already does 41mph on 4S with a 20T pinion and a little tire ballooning. Going to 5S, you'll want to drop 2T-3T from the 20T to get back down in the mid 40mph range if you account for ballooning.