E- revo gearing questions

[VintageMA]

From a few trials with the E-Revo, don't gear for 40mph with the stock tires. My first gearing was 24/68 on a 1515 running at about 30,000rpm geared for 35mph - at 35 mph the stock tires balloon enough (about a full 2" in diameter)to make the speed closer to 50mph+ and will drop your overall ratio tremendously and you will get some serious heat (got up to 180* on a 1515 in 10 minutes - a 7XL would become a griddle)

I just switched out to a 1515 running at ~36,000rpm on 6S and geared it at 18/62 with the Badlands MT (again ~35mph) and it was running much smoother and motor temps around ~130*.

The badlands do not balloon much at all. The Talons are cookie cutters - if you gear for 40 you're going to balloon close to 55-60mph gearing with the tire expansion.

I would say to gear up to closer to 30-32mph and with a little tire ballooning you'll be around high 30's. When you get better tires you can then gear back down to a 20-22T pinion.

The stock tire on my e-revo is in the garbage I've put half offset Ofna wheel with proline bowties MTR.
I've a Neu 1515 2.5d/f with 6s, gear 24/68 and i'am about in the 40/42mph range.
If i put y badlands on it, i switch for a 22T pinion to campansate for the extra .15" diameter and weight.

[VintageMA]

Originally Posted by david lamontagn

The stock tire on my e-revo is in the garbage

I'm going to ebay mine to some poor schmoo along with the titans, esc, radio and receiver.

Originally Posted by VintageMA

I'm going to ebay mine to some poor schmoo along with the titans, esc, radio and receiver.

Ya i said " in the garbage" but in reality, i've sell it for $40.00 to a friends ( no, my firends is not a garbage)

And all my stock electronic (motors, ESC, Tx + Rx and servos) is ever sold to another of my friend for $110.00.

So my e-revo, with both taxes and shipping is at my door for exactly $382.16 CAD

[VintageMA]

Originally Posted by david lamontagn

I've a Neu 1515 2.5d/f with 6s, gear 24/68 and i'am about in the 40/42mph range.
If i put y badlands on it, i switch for a 22T pinion to campansate for the extra .15" diameter and weight.

Same motor/bat setup as me, but I dropped the spur to 62 to make use of the low-CG mount. I feel I could go up from 18/62 to 20/62 with now problems as well with the badlands tires. That puts me at the same ratio as you with th 22/68.

That just feels like a nice range for a MT. No need to try and go 50 in a truck..... More fun to go a little slower and use it on the bumps like it was made to do.

Same motor/bat setup as me, but I dropped the spur to 62 to make use of the low-CG mount. I feel I could go up from 18/62 to 20/62 with now problems as well with the badlands tires. That puts me at the same ratio as you with th 22/68

What did you want to mean by low-CG mount??? You put your Neu on the front of your truck to the place of the rear???

Originally Posted by david lamontagn

What did you want to mean by low-CG mount??? You put your Neu on the front of your truck to the place of the rear???

From the e-revo user manual.

[VintageMA]

Originally Posted by ah-see

From the e-revo user manual.

Thanks - best answer I could give.

Neu is still mounted in the back spot but it sits a little bit lower to the chassis. There is actually somewhere in the manual (or on the Traxxas site - can't remember) a listing of what gear combinations will work with the low-CG mount and the high CG mount.

Using the stock 68 spur gear your gearing on the low-CG mount is limited.