Are Zippy Lipos safe with a Castle MMM Speedy?

[fastbaja5b]

even the flux manual says on 6s use a higher pinion than on 4s

WTF?

[lincpimp]

Originally Posted by fastbaja5b

But if you go by this thread:

http://www.ausrc.com/forum/showthread.php?t=15868

He's being told his esc blew as he ran the 20t pinion (stock gearing) and not the 25t pinion (optional included)

so doesn't that contradict what you are saying?

By your logic he should have gone down to a 12/13 perhaps, by theirs, the smaller pinion is what fried the esc

If the smaller pinion caused themotor to be undergeared it would heat up. Not sure if that would affect the esc enough to cause it to pop...

Originally Posted by skellyo

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.

Ahh, I though the 25 was stock. Must have misread a previous post. So why do they include the 25t pinion? So you can gear up if you plan to run nimhs? Does not make much sense to me...

Originally Posted by fastbaja5b

even the flux manual says on 6s use a higher pinion than on 4s

WTF?

Can you link me to a pdf or something like that for that portion of the manual...

Even with the 20t pinon the truck is doing 55+ mph on 6s lipo. That is plenty of load on the motor. A 25t would go past 65mph. I see no reason not to run the 20t pinion with 6s, other than 55mph is a bit much for most bashing situations, and some lipos. A 16t pinion on 6s would be much more manageable, or a 19t pinion on 5s...

[hoovhartid]

Originally Posted by lincpimp

So why do they include the 25t pinion? So you can gear up if you plan to run nimhs? Does not make much sense to me...

I wonder if the problem is the tires?

maybe they expect you to use phaltline tires with the 25t and the MT size ones with the 20t?