Df02 Gravel Hound And 23t - Maxed Out On Gearing

[casethejoint]

Hi there,

My Gravel Hound basher is up to the max gearing I can get it to using the stock motor mount (alloy version) - 22 pinion/67 spur.

I have a cheap and cheerful 23 turn Venom Fireball motor in it and it still seems to me plenty torquy enough - hits top speed near instantly.

Track is a hard dirt track near home, so it's not real off off road and really not far off being on concrete/tarmac. Got a wonderful long straight (about 60 meters) and I'd like to see what I can push it to.

Is there a way to crank the pinion gear up beyond 22 tooth or should I just drop turns on the motor down to a 19T or 17T ?

In the interests of experimentation I'm relaxed about frying a motor (as long as it's cheap). The 23 turn does not get unreasonably hot (too hot to touch sometimes, but nothing has melted yet!). Batteries are decent 3700 NiMh. ESC is a no-limit cheap Chinese job. Can upgrade ESC, but not sure it's worth it - would prefer to experiment with a cheap low turn motor or find a way to gear up first ideally.

I appreciate I'm probably close to the limits of this chassis already (it's pretty quick). Looking at the gearing suggestions available it seems it was designed for silver can or Sport Tuned up to 22/67 geared. I suspect my 23T Fireball is about equivilent to a Sport Tuned. But as mentioned above I don't mind destroying it in the process of experimenting/educationing myself

Thanks!

[SuperHornet]

Not exactly sure this is what you are looking for, but theres some good DF-02 gearing info here

click here

[casethejoint]

Thanks - that is a helpful read.

I'm hitting top speed near instantly so I still think there's some torque left to play with. Info in that thread is more around over-gearing, which I don't think I've done. That said I might experiment by dropping in a 17 tooth pinion just to see what happens. It's possible that top speed is down on what it could be because the motor never gets into its power-band.

[r6stu]

Im running a 15t quad motor in my GH and she is FAF!!!! Ive got the std gearing atm, but I do also have the sport tuned gear set for it to put in at some point!

Its so fast that the other day I ripped off one of the tyres from the side walls and rim, lol I just have the side walls glued to the rim!

Cant find quad turn motors now, And I love this one, so much grunt! Its way faster than my Dark Impact!