newbie tekno-rc revo owner...
 

hello...i just finished my tekno-rc revo conversion (mamba max + Feigao 540XL - 9XL Brushless Motor (9trn, 5mm shaft, 74A, 1853kv) i only use 7.4 lipo battery on it. is that the reason why it runs very weak? or maybe the electi-clutch was the problem, totally confused:oops:...i will try to use direct drive to see if it will run better. still waiting for the parts from impakt RC. here's what i have ordered...
1 x Novak Pinion Gear (Mod 1, hardened steel, 5mm, 15t) (NOV5104)
1 x RC-Monster Electric Motor Mount (CNC aluminum, Traxxas Revo) (RCM-MM-REVO)
1 x *Tekno RC Long Shank Pinion (hardened steel, Mod 1, 5mm bore, 15t) (TKR4155)
can anyone tell me if this will help...thanks a lot

Yes, you need more juice - that set up should be run on 4S. Is there a reason you tried it with just one battery? Also, why did you order two 15T pinions? Also, how did you mount the motor, seeing that you have a motor mount on order?

I'm running the same set up but diff motor, also using a 15t clutch bell on the Tekno kit, unless u have the wide gear set, it will feel very pedestrian even in 2nd gear at full throttle.

actually, i just use that battery to test it...(that's my b44's). i ordered 2 pinions, just in case one did not work...also the motor mount for the same reason...anyway, i am buying a 3s, you think it's good enough??? here's some pics...

No. Your gonna need at LEAST 4S. I'd go 5S.

Squee is back...WTF!

Anyways a 9xl is going to need 4s... Or pick a motor with higher kv for 3s. 4s will be better.

Hoping to get my mod position or something? :lol:
But yea, if you really wanna run 3S, best bet would be something like a 7XL. I'd go 7 or 8XL on 4S or 9XL on 5S.

Those pinions are exactly the same, so if you can, you should maybe change the order to get one that has a different pitch (maybe a 14T).

so, that means i need to use bec...i know mamba max can only handle 3s max, right...

i ordered one with long shank and the other with standard...

Yes on 4s, you will need a cc bec or similar switching regulator....Just don't forget to remove the red wire from the esc plug! You may also want to add a cap as well...like this one ...http://www.rc-monster.com/proddetail...=35vcap&cat=21

Is there a particular brand of lipo batt. you guys can recommend??? I planning to buy one, like what you said, at least 5s. I'm checking out maxamps (30C Lipo 6500 5S2P 18.5V) or polyquest (PolyQuest 5s 6000mah 25c)... Is there any difference?

I would only use the onboard BEC for 2s lipo

i have mmm esc with 5s...is it ok to use "auto" on voltage cutoff setup???

Most of us here use custom selection and run anywhere from 3.1v/cell to 3.3 v/cell. I run 3.2 v/cell as a little insurance