Just want to say "Thank You" to the OP.
Thanks to You, I found a solution for the steering servo on my Interactive Toys Skidoo. (Ordered it from the US. It's not available in Europe[
]It was here in 3 days!! wow, fast! Aaannd pretty expensive with import-tax and such..)
Currently I have a Speed 400 7,2 v with a 7,2 traxxas 1,2Ah battery, combined with a standard TEU 101BK from Tamiya. I haven't tested outside yet. Basic tech works. It's also quite a bit lighter without all electronics and that 8-cell pack..
The Speed 400 (2400Kv) has a 16 tooth pinion from an old Tamiya 1/12 racer that originally had a RS380.. Pitch is exactly right. If it's still too slow, I also have a Speed 400 6v. ( 3500Kv) I only had to "ovalize" the motor-screw holes to make it fit..Coolness!!
Front dampers are some old Marui-Galaxy aluminium dampers. Hellish affair to fill without vapor locking them...[:@]They seem to work pretty well though.
Rear I left the odd spring in place and connected an oil damper from a touring car next to it. Works!. No more wild hopping about (at least with the original electronics)
Again, Thanks very much for the tips and clear pictures. I'll report how the Speed 400/7,2v goes ( a steal @ $9.- , and worth the experiment).
If I want to go ballistic, I still have a 1/16 slash Velineon brushless laying around... will accept 14v..heh.. prolly' blows gearbox to bits then..
Assembled all and tested it (added a Graupner 1:6 th scale moto-cross figure. Fits like it was made for it)
Is somewhat faster than stock, but has a lot more grunt.. A LOT.. Runs about 12 to 14 minutes on a Traxxas 1,2 mah NiMh battery. It even tries to wheely. That cannot be good for the gear-box. I have to find a bigger pinion I think.
I tried it on the street. It accellerates pretty well. When in the grass, dirt and mud, it ploughs through with enthousiasm. Speed is hardly any slower than on the street.. Only problem is that it does NOT steer when accelerating, the front-end gets very light..
I love it!
All in all I think that a speed 400 7,2v. is a good start. The velineon has to wait for a bit. I first want to see how much the gears wear when using the 400.