RC-Monster Forums - My E-Revo questions and build

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I went to 20t pinion, 66t spur. 20t is biggest I can get from here, otherwise have to order from Mike, and ordering just one gear from 4000km away is... I'l have pile up an list worth ordering, just to compensate for the postage fees.

I take it that 66T spur is the smallest? And judging from previous posts that you are using second gear?

It's not gonna be real cheap, but you could move to a Mod1 setup using the Strobe slipper. With the 51T Ofna spur, a 15T pinion will get you close to what ratio you are running now. So, you'd have some wiggle room as 14T and 16T pinions are available.

64 is smallest so not much improvement there. 51/15 or 16 might be an good choise.
And I would get an real slipper. Runnig diff balls in the spur right now. Works but not much slip...

Quote:

Originally Posted by j-man

After cruising around with 12 cells, I moved to 7 cell packs, IB4200's. I've been testing them for a while now, on loose dirt, packed dirt, grass, and pavemet.
No matter what I do, the MM esc does not get varm, just slightly over body temps, batteries are a bit warm and motor 2 sec touchable.

More voltage? Does MM handle 15-16 cells, thats almost as much as 5s lipo, and I understand some problems with MM handling it? Or would the fact that nimh gives less amps help MM to handle it?

I ran my MM/8xl on 14, 15 then 16 cells last year during testing. It did it fine, but you are pushing it. 5S still has more power. I bought the 5S packs as my 1st lipo thinking it would be about the same 16 cells as it looks on paper... no...5S will rip your balls off (see my vid). So much punch and power...

The only prob w/ 16 cells is the fresh charge voltage is higher, ~1.45v/cell. It runs very close to the 25V rating of the caps. All in all I think a 4S setup is ideal for the MM. Lots of punch (more than 16 cells due to amp load) but not no high a voltage you are really pushing the ESC.

I had gearing @ 15/51 and 16/51 (for hi-speed stuff). Weight was 4.3kg (w/o batts) FYI