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lack of constant power on 1/8 buggy

lack of constant power on 1/8 buggy

Old 02-13-2016, 01:38 AM
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Default lack of constant power on 1/8 buggy

If I have to take a double jump. at the second hop, I experience very often that i have no more power or less power. as if it can not provide full throttle 2 times in a row.
The same thing happens in the air if I want more front end up. It can not provide enough power to lift it all the way. There is plenty of power for the first time.

It has been so from day 1.

is this just how it is to drive electric 1/8? comming from nitro

I have tried to "boost" the ESC it maybe help slightly but it gives me other problems,

ESC/engine Hobbywing Combo-M6C 1800kw
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Old 02-13-2016, 02:45 AM
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What is the current limiter set to? I have the same problem but i only noticed it after after i dropped the current limiter to a lower setting.
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Old 02-13-2016, 03:53 AM
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What do you use in your center diff ? If too light it will be inconsistent and lack oomph, you might get away with the first as the speed isn't the same as the second to pick up.

Boost doesn't help much in 1/8 because of 4 poles magnets on the rotor (=15°max).
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Old 02-13-2016, 04:14 AM
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you're right. Boost is taken off = 1 completely because of the heat. Punch is probably more the right word and it is set to default 5 or 6. Center diff 5000 i think right now.
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Old 02-13-2016, 06:08 AM
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check your timing too and battery placemnet in the tray. When I use to run a single 5s if it got lose during a race and shifted forward it made it harder to bring the front end up,also are you using adequate lipo's??
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Old 02-13-2016, 07:35 AM
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Sounds like current limiter, they draw more current on landing so that could be the issue of it limiting it to much
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Old 02-14-2016, 02:51 AM
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Upgrade out of that setup may help a little also " ESC/engine Hobbywing Combo-M6C 1800kw "

Hobbywing is low end Chinese, looks nice, but ends there.
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Old 02-14-2016, 04:34 AM
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Originally Posted by Manshoon View Post
Upgrade out of that setup may help a little also " ESC/engine Hobbywing Combo-M6C 1800kw "

Hobbywing is low end Chinese, looks nice, but ends there.
was told that hobby winger was a good set. Sure you do not confuse it with hobby king?
IFMAR world champs like Atsushi Hara, Bruno Coelho and more, run with it?
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Old 02-14-2016, 04:41 AM
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could it be that I must have an UBEC or whatever they called mounted?
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Old 02-14-2016, 06:01 AM
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No, this isn't how electric should be. What battery and burst rate? You may be experiencing a voltage sag.
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Old 02-14-2016, 08:20 AM
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Originally Posted by spookie View Post
No, this isn't how electric should be. What battery and burst rate? You may be experiencing a voltage sag.
battery Turnigy nano-tech 6200mah 50-100c

but think I had borrowed some last year. with no difference
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Old 02-14-2016, 11:18 AM
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Might be a bad solder joint.
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Old 02-14-2016, 05:49 PM
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I experienced the same issues with my truggy. My setup was
Losi2.0t
Castle mamba max esc (yes, the 1/10 scale model)
Turnigy 5000mah 25c 4s lipo
Tacon 1700kv 4074 motor 4 pole unsensored
I assumed it was the speed controller cogging and a combo of the low burst batteries. I never messed with the settings, but switched only to a HOBBYWING 150amp 1/8 esc and it solved my issues.
Just for an fyi, the mamba worked ok other than the weird cogging between double jumps.
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Old 02-14-2016, 06:18 PM
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Originally Posted by occidio View Post
battery Turnigy nano-tech 6200mah 50-100c

but think I had borrowed some last year. with no difference
They sound fine to me. I've had several HW's and one thing I noticed is they aren't consistent every time, at least the ones I had, HW 150 pro's. I noticed it on the brakes (45%), about every 3rd time they would hit hard, then you could see them back off to the 45%. It almost felt like a car antilock. They would slightly skid, then back off.
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Old 02-16-2016, 04:27 AM
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I had this same issue with my Tekin RX8 Gen2. After many discussions with Tekin, as well as Ryan Lutz, we came up with a root cause.

I had current limiter set to soften the hit, but I was also running a lower EPA to keep from over jumping. The combination of the two, when in a situation where the throttle input was a quick succession of "on-off-on", caused the second hit to be MUCH softer than the first one.

In the simplest terms, the ESC was getting a bit confused about what it was supposed to do. I have since started running with the EPA at 100, and "limiting" my throttle finger to keep from over jumping.

I don't know if the same result will apply to the Hobbywing, but I no longer have the issue with the Tekin.
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