MMP Start Power

[Lauri]

Well... I thought it affects things more.

I raced 1/10 touring 17.5T. With "easy" setting everything was ok and lap times consistant. It was a club-race day so every run was 5 minutes + 1 lap. Then I tried "hard" setting. 2 runs I noticed that lap times dropped after 3 minutes and few last laps were a lot slower. I just didn't get the speed ot of the car. You could visually see that acceleration on the main straight was slower.

You would think that maybe motor over heated or battery was empty but no. Motor was OK (70 Celsius max), ESC was cool, battery was cool. And still 2 runs and both runs the car just didn't have the kick after 3 minutes.

I think the battery died (didn't have the voltage!) for some reason and it was caused by the "HARD" Start Power. After charging the battery only 1500mAh went into 4500mAh. So battery was... dead by the voltage, not drained. I've ran the same battery with 1:10 modified 5.5T with great success and no problems before.

As I'm racing onroad I only ONCE start from standstill and then run-run-run consistently 11.4-12.0 laps for 5 minutes.

Do you think Start Power can affect in this case? I can't think of any other reason. After going back to "easy" I didn't get the problem any more. So it has to be Start Power or... or some mysterious other thing nobody could think of.

I'm guessing it has something to do with the pulsing current that LiPo can't handle. I would like to know if Start Power maybe somehow changes this? Would extra caps help? Or if the Start Power only affects the FIRST start then I could just leave it "easy" and that's it?

[Pdelcast]

Originally Posted by Lauri

Well... I thought it affects things more.

I raced 1/10 touring 17.5T. With "easy" setting everything was ok and lap times consistant. It was a club-race day so every run was 5 minutes + 1 lap. Then I tried "hard" setting. 2 runs I noticed that lap times dropped after 3 minutes and few last laps were a lot slower. I just didn't get the speed ot of the car. You could visually see that acceleration on the main straight was slower.

You would think that maybe motor over heated or battery was empty but no. Motor was OK (70 Celsius max), ESC was cool, battery was cool. And still 2 runs and both runs the car just didn't have the kick after 3 minutes.

I think the battery died (didn't have the voltage!) for some reason and it was caused by the "HARD" Start Power. After charging the battery only 1500mAh went into 4500mAh. So battery was... dead by the voltage, not drained. I've ran the same battery with 1:10 modified 5.5T with great success and no problems before.

As I'm racing onroad I only ONCE start from standstill and then run-run-run consistently 11.4-12.0 laps for 5 minutes.

Do you think Start Power can affect in this case? I can't think of any other reason. After going back to "easy" I didn't get the problem any more. So it has to be Start Power or... or some mysterious other thing nobody could think of.

I'm guessing it has something to do with the pulsing current that LiPo can't handle. I would like to know if Start Power maybe somehow changes this? Would extra caps help? Or if the Start Power only affects the FIRST start then I could just leave it "easy" and that's it?

It's hard to say -- there are so many variables. It's possible that you just had a bad battery.

Start power ONLY affects startup of the motor -- it doesn't do anything else after the motor is running.