mfgranizo

High, I`m knew to the 1/8 off road category. I just bought a Mugen MBX6, and a Active 8 with the Ballistic 8

the problem that i have is that the Motor, is getting hot, not the ESC,

I am running in a short track, with the standard car configuration Pinion 14

Other guy running in the same chassis, whit the same configuration but whit the Tekin esc and motor run with out problems of getting hot.

Do i need to modify the timing (un timing)? apart of running in a 13 teeth?

I donīt understand why the Ballistic run hotter than the Tekin. My motor reached 190 while the tekins get 150! same time, same speed, same track, in same category and same race

Any Help?

ta_man

iTrader: (168)

First question I would have is: What motor did you get (1950KV or 2650KV)?

Then: What Voltage are you running it on?

The 2650 on 4S is not really appropriate.

That said, there is still the issue that the Activ8 only runs sensored.

Maybe Novak knows something about running sensored that other Manufacturers don't, but the other manufacturers will tell you if you use sensored mode only, the motor will run hotter. The 1/8th Tekin ESC does not even have a sensored-only mode.

mfgranizo

I run the 1950 Kv on 2S lipos

84 GT 5.0

iTrader: (26)

thats why 1950 on 2s is not good you need 4s

mfgranizo

Thanks for the comments and sugestions.

I know is some one that is a Novak representative in this forum?? hope i can hear form him.

rdeppen

iTrader: (9)

You can't run an ebuggy in 2s. The car is simply to heavy. The Novak Speed Control will work on a 2s lipo but not the motor. It needs more juice to operate efficiently. Charlie at Novak informed me to gear up a couple teeth from what a Tekin 1900 T8 would normally run even thou the ballistic is 1950kv

kufman

iTrader: (6)

2S will be tricky with that setup. Are you 2S limited by track rules?

RodneyB

iTrader: (7)

He said 2S lipoS, plural...maybe he meant 2 2s.

Assuming that, I am running the same setup (Mugen and activ8) and gearing and was only getting 140 on a smallish track with high traction.

Try gearing up, might help. Check gear mesh...should have play between spur and pinion.

Reubster24

iTrader: (37)

Your working the motor to much by running such low voltage. That is why it is getting to hot.

mfgranizo

Yes I use 2 2s lipos, so i thing that is not the problem.

When you say gear up, you mean use a higher pinion? I`m usin 14, should i try 15?

Thanks in advance

84 GT 5.0

iTrader: (26)

are your 2 2s in series or Parallel ?

Cain

iTrader: (294)

Some questions I have:

- Where are you topping out down the longest straight?
- Do you find you are at the higher end of your throttle range (more trigger pull) around the entire track or worse, basically full throttle around most or all of the track
- Do you have any backlash between the pinion and the spur? (can rock it slightly, not all snugged up)
- With the motor disconnected from the drivetrain (pinion not touching the spur), can you free roll the car, do you notice any binding?

Depending on your answers, can provide more help. My initial guess is its possible you are undergeared for your track conditions.

mfgranizo

Series. 2 2s lipos connected in series

mfgranizo

In the main straight yes

Yes I am in the higher throttle range

Yes I have backlash and the car disconnected, roll free

Cain

iTrader: (294)

If I am understanding this right, you are in your higher throttle range around most of the track, not just the straight.

Based on that, you need to go with a bigger pinion size. Target to top out towards the end of the longest straight.

From there, see how temps are and adjust gearing down. It should get your overall motor temps down.