The mans back with some heat! I honestly really enjoy you throwing these questions out. Nothing wrong with testing!

Love the video, thank you so much for putting this out there and I agree with everything you said. I’m an electrician and have been rc drifting for a little over a year so hopefully I can add something useful to the conversation. Capacitors will also help with filtering of the sign wave, providing smoother power to the electronics. A non linear load happens when the ESC is taking the single phase voltage from the battery and changing it to 3 phase voltage this causes a crazy sign wave. On top of that the output voltage to the motor is being pulsed to modulate the speed of the motor, this is called pwm, pulse width modulation. This can be applied to the servo motor as well. All this causes a bunch of noise and makes an erratic sign wave, making it harder and less efficient for the electronics to do their job. This is where the capacitors come in, they act as a filter, and provide for a smoother sign wave that can be seen with an oscilloscope. The smoother sign wave makes it easier for the electronics to work. Basically, smoother sign wave = smoother ride. Now are they necessary? Absolutely not. Do they help? Yeah. Will it make you better? No only practice can help with that. This is just a surface level explanation but I hope this helps.

Actually, the voltage does drop. I can put a meter on there and show you. The capacitor should be thought of as a storage device that is capable of releasing instant power needed instead of relying on the battery to release. It is definitely noticeable if you’re using batteries with a lower C rating. So for people that are using heavy amounts of boost and turbo, it does help running a capacitor way less strain on the electrical system. It’s no different than putting a capacitor in a car stereo. It helps the headlights from dipping every time the bass hits same thing.

Caps do work when your drifting and at constant radio inputs it helps especially at the end of the battery when it’s about to die it will keep you drifting the same all till the end 🤙🏽

exactly! you have japanese drivers using the stock caps. rpx2s esc been winning rcdc.

The knowledge and questioning is great! Keep up the good work👍🏾

Another great video bro!

Yessir! Been sayin this for forever. Especially coming from FPV drone world. Caps aint doin what you think their doing in surface RC world. What would make a difference? if we went to sbus or serial radio frequency that is received, interpreted, and distributed by a control board. Then in the programming of that control board you could program in certain things like signal smoothing as well as a million other things. In the drone world Caps matter, but no body is spending more than $10 on their cap setup, and people have proven that more than anything the amount of wire you have between the control board and the cap is more crucial than the size of the cap itself. FPV is SOO much more sensitive to voltage spike and fluctuation than surface rc, so if it matters that much and a $5-10 cap is the solution for that application there is NOOO reason multiple caps on surface RC builds are a solution to any kind ish ya got going on. I know thats what you sayin, just needed to back you up, offer some supporting perspective. Crazy how anytime I start rambling about how surface rc needs fpv drone style control boards everyone starts lookin at me funny, but it makes sennnse. Also one then control boards is like $40, and includesss -gyro -bec -32bit processor -addressable rgd led controller -and like 7-8 pwm channel outputs. Sorry for the rant yall.

Caps used to be a requirement before esc, BEC, and receiver technology caught up with high power servos. You would run into issues where a power hungry servo (Savox was one of the most problematic) would drop the voltage so much that the receiver would brown out and cause a loss of control. Modern RC electronics don't have that issue and the caps, or glitch busters as they used to be called, are no longer needed.

I just got a jobbywing esc and mottor and proggramer can you share your settings and your opinion for the boost and turbo timing and delays please! Thanks

IAF notifications bring the ❤, you just saved me €80 , I’ve watched a YT upload from DOSLOG recently and one of the local drivers was using 2 Acuvance Cap sets on his competition car , He said he didn’t see any noticeable difference with 1 but did notice smoother action with 2 🤔 This upload confirms my doubt. look forward to the next video upload Already , Appreciate Your work and testing IAF ✌🏻

Good vid! Question everything! I feel the same tbh. But you cant say tuning and have all those weights bro 😂😘 all love 🙌🏽

I can tell you why it does nothing, the ESC already has capacitors in it for both motor and BEC output doing the exact same thing, adding more is not gonna benefit you in any way. That's just snake oil sales tactics and Accuvance does it the best with their line up of unnecessary extras for way to much money lol (a capacitor in the industry of small electronics costs from a few cents to a few dollars max)

What's a good kg for a drift servo? I was thinking of getting a 25kg, but I'm unsure because I've seen some 7.5kg - 18kg drift servos and don't know if lower is better

Only an expert in electronics can explain how capacitors work. Ask any car audio enthusiast ask them why their car sound systems need capacitors....😂

Great video, bro. Been wondering how much these caps actually prevent voltage drop. I'm assuming the Trace Bector does nothing with the signal wire, just passes it through to the servo for a more "plug and play" experience.

My ESC's BEC supplies 5.8V and with steering it drops to 5.3V. Servos have a speed and torque set at specific voltages and become weaker, less responsive with lower voltage. Capacitors smooth out those voltage drops. Maybe modern electronics aren't this sensitive, are more power efficient and maybe it's time for me to move away from cheap but still decently competitive 2017 electronics.

ur cap shortens the spikes. What is it u expect it to do? Do u even know what it does?

Great vid bro. I have been doing some blind testing on FEEL alone. Getting drivers to go out on track 3-4 times and I either put the cap in there handset or not and see if they can tell me when it’s in or not and the results tell me I my does nothing 😂 Trying to figure out a way to make it into a vid 😂🫡 Had one of the guys take it out of my car ( trace bector between esc and receiver) at a random point during a drift day to see if I could tell it had gone. I DID NOT NOTICE 😂

I think running tons of fans on your chassis is far more detrimental than any capacitor is beneficial.

Capacitor on the line will not smooth out steering at all The only usefulness Capacitor is on esc to stop voltage drops and Capacitor on the reciver to smooth out voltage drops

If you wanna see what the capacitor does leave the car turned on and unplug the battery, the car will keep running for a few seconds

Why are you using the OMG cap when you said it didn't work in the first place? So, I feel this video is invalid testing.

It's all placebo effect when people buy hundred dollar capacitor

Coming from a car, audio side dealing with ultra capacitors. Forget about the signal wire It is not the smoking gun. You think it is. Remember, a capacitor is just a immensely. Powerful battery With almost no capacity think of it like a 1mah lipo with 1000000c With near infinite Cycles Who's only function is to provide bursts of current During peak demand. The servo Does not care where the Power comes from the signal. Wire is the only wire that needs to come from the receiver to tell the servo to draw that power. ( A lot like a relay) Of course, understanding all that Don't get us any closer to a Definitive, answer. What neither does your test? Your test was on a closed system with a finite capacity. When you take a sip from your cup of water. Are you surprised there's less water in the cup afterwards? The theory is sound In principle . Look at the size of these receivers I'm honestly amazed by the power pulled through them. Fundamentally, it's hard to argue against A big bucket of water right next to the fire. The science speaks for itself regardless of our ability to perceive it or not. Basically Questionable, but plausible. Easily the most satisfying. Maybe i've ever said