safe to run a 1717 on 4S in a truggy? pics included

[nuz69]

That's normal, a 4S 5000mAh battery has less electrical quantity than a 6S 4500mAh. You should have tried with 6S 3300mAh to get the same runtimes ;).

Originally Posted by nuz69

That's normal, a 4S 5000mAh battery has less electrical quantity than a 6S 4500mAh. You should have tried with 6S 3300mAh to get the same runtimes ;).

I was hoping for a 20 min runtime on 6S. Not enough eletrics here to run our own class, so we get lumped in with the nitros and 20 min mains. Battery changes have proven to be troublesome.

I think the overall weight of the truggy is really hurting me the most. I'm not prepared to drop endless amounts of money on the truck though. Already spent too much. I may have to be content with having a truck that is really only going to be good for 15 minutes in most cases.

ben

[nuz69]

What speed your truck is geared for ? My truggy geared for 39mph on 6S 2950mAh with the CC 1520/1Y do 11-12min under race conditions. Try maybe a lower gearing if you want get the 20 minutes... Set timing to 0 and punch 70-80% (enough for racing).

Originally Posted by nuz69

What speed your truck is geared for ? My truggy geared for 39mph on 6S 2950mAh with the CC 1520/1Y do 11-12min under race conditions. Try maybe a lower gearing if you want get the 20 minutes... Set timing to 0 and punch 70-80% (enough for racing).

I was running with an 18t pinion, which puts me at 55mph at 6S. But, I had the EPA on the radio turned down to 75% which makes the top speed about the same as when on 4S with the same gearing. I'm running 0 timing and no punch control.

ben

[nuz69]

OK,
Use punch control, it really kills the amp spikes during acceleration. The EPA at 75% isnt really good for the ESC (bad efficiency of the transistors). You really can't gear down with the width of the 1717 ?
If not, the best solution would be the 1520 1600Kv with 13T pinion on 6S... Try to get one, only 65 bucks.

Originally Posted by nuz69

OK,
Use punch control, it really kills the amp spikes during acceleration. The EPA at 75% isnt really good for the ESC (bad efficiency of the transistors). You really can't gear down with the width of the 1717 ?
If not, the best solution would be the 1520 1600Kv with 13T pinion on 6S... Try to get one, only 65 bucks.

I thought it was the other way around. I though using punch control killed the efficiency. I know I can fit a 15t pinion on. I'll see if I can get smaller.

I really wish I had gotten the 1520 instead. I always learn my lessons the hard way. LOL. Honestly, I'd like to have an even lower kv motor like a 1350, but CC doesn't make one.

ben

[Pdelcast]

Originally Posted by armourbl

I thought it was the other way around. I though using punch control killed the efficiency. I know I can fit a 15t pinion on. I'll see if I can get smaller.

I really wish I had gotten the 1520 instead. I always learn my lessons the hard way. LOL. Honestly, I'd like to have an even lower kv motor like a 1350, but CC doesn't make one.

ben

Try the torque control (not the punch control...) -- it really will do a better job of limiting current. You will be surprised how much more runtime you can get, and it won't limit your top speed (when setup correctly...)