GUUDI 48-72v Motor Controller - How to Shunt Mod - Wire Tuck - Waterproof | With wire translation

[@anio6865]

So.. how many amps do think you added with that amount of solder ? With the controller I am thinking about I need only to add 2 amps.

[@thatguychris.]

Not sure exactly. If you just glaze one of the shunts with solder you should get what you’re after, the smallest amount can change the resistance being measured by the controller.

[@anio6865]

@@thatguychris. change the resistance of being measured by the controller ? Is that good or bad ?

[@thatguychris.]

Gives more torque.

[@anio6865]

@@thatguychris. does it tell anywhere on the controller board what the watts are ? I mean to say like a 350w ?

[@thatguychris.]

You can calculate an estimated wattage by multiplying your amps X voltage. For example If I have a 45a controller, with a fully charged battery at 84v I should be around 3780 watts 45aX84v=3780. Depending on the controller it can spike much higher or not even match the advertised power.

[@maukaman]

Great video. Just curious, Have you ever tried using any type of potting compound on a controller board or any other coating to increase water resistance? Also I couldn’t quite see what pins the pink “jog mode” wires were connected to on your board, do you happen to know what the pins were labeled? This is one of a couple of functions I’m trying to enable on my controller. It’s not wired for “jog mode” or for regen braking but there’s loads of unused pins so Im hoping to be able to find and enable one or both of these functions.

[@thatguychris.]

Just like any circuit board they can be potted or sealed, although you will need to work out some type of heat sink. Unfortunately I don’t have an open controller right now, they’re all sealed up. I’ve never seen one advertised with regen braking, I’m not sure if it has that feature. They’re functions I don’t use personally.

[@malikruff7187]

How much faster can a shunt mod get a 48v2000w motor to go and do I need to use a 48v to 72v controller to do it are can just use my 48v controller

[@thatguychris.]

It’s going to increase your torque which will help you reach you top speed quicker and may bring it up a few numbers. Try out the stock controller first but most likely you’re going to want to upgrade. You can use your battery, but I would recommend at least 60v, or 72 is what I use mostly.

[@jasmineNcisco808]

Where do you get your the thing you add onto your shunts?

[@thatguychris.]

It’s just 2mm solid copper wire. You can use 2mm solder pieces or stranded wire if you can get it to stay together. Some people don’t even use anything and just completely glob solder on.

[@jasmineNcisco808]

Thanks for the reply. Are you running a stock motor watt with this?

[@thatguychris.]

I did use this controller with the stock motor but the shunt mod was too much power and burned up the motor during a hill climb.

[@jasmineNcisco808]

What do you recommend with this besides a 48-72v battery and GUUDI controller?

[@thatguychris.]

There’s a throttle with a voltage meter and 3 speed switch that pairs up well with this setup. Statorade motor coolant is some pretty amazing stuff too, really keeps temps down. What motor are you using?

[@androsmilenionful]

Get a frankenrunner from grintec very small and powerful controller or a garmata 50 amp controller very small,you can run 48 to 72 volts battery.

[@thatguychris.]

Thanks for the recommendation ET! The thing about these controllers are they’re only 40$, reliable, efficient and available on Amazon prime with next day delivery. For someone on a budget it’s a great option.

[@michaelcardenas694]

Hey man. love your videos. I just finished my 52v jetson, but I'm not liking the controller I have too much, due to the size. I'll give this one a try. Does the shunt mod add torque or top end speed?

[@thatguychris.]

Thanks Mike! the easiest way to describe the shunt mod is it gets more torque, but there’s a lot more to it. it may help you achieve a slightly higher speed but it really depends on your whole setup. you’re going to see improved prolonged hill climbing, acceleration, and throttle response.

[@joesnow93]

I’m new to this, so what does this exactly do?

[@محمدرضاحسنی-ج7ت]

Hello, thank you very much, I want a lot, how can I get it?

[@positivevibesdrumming5186]

Can you please tell me what the blue and white wire you snipped off last was for? It was connected to pin F3. Is that if you are hooking up dual motors? If not, which wire do you connect to the other ESC for dual motor option? Thanks. For any response. Anyone?

[@thatguychris.]

The blue and white wire is a data cable. I’ve never heard of linking 2 controllers together for dual motors. Just connect the throttle wires into both controllers.

[@positivevibesdrumming5186]

@TGC - That Guy Chris Thanks brother! For responding.. ok. Well, here's the thing... I have the option to use single, dual, eco and turbo. Two buttons, one for eco/turbo and one for Single/ dual. I have the same controller you have. Just don't know if connecting the throttle signal between both is enough to run those functions. Any ideas?

[@positivevibesdrumming5186]

@TGC - That Guy Chris and what is a data cable used for anyways? I spent much time looking on the internet to figure that one out. I'm caput from my eyeballs to my arse! Lol

[@thatguychris.]

Yeah a single throttle signal will control both controllers. And you can control the speed setting on both with a single 3-speed switch. The data wire is for a display, I only use a voltmeter on the handlebars

[@positivevibesdrumming5186]

@TGC - That Guy Chris thank you for the info. Appreciate you. I'm going to share channel with my e ride crew. Tampa Florida electric riders. 👍

[@lenairhall5106]

How do I set up a display wit this

[@thatguychris.]

There’s many videos on KZbin about connecting a display without preexisting wires. The setup is different for each display, you just have to buy one and go fro there. Imo the only thing you need is a voltmeter, everything else can be done with your phone/gps.

[@jasmineNcisco808]

Hey Chris, What size gauge o-ring connector does the Motor and battery wires use?

[@thatguychris.]

I just use blade connectors for phase wires and xt60 connectors for the battery

[@thatguychris.]

I just use blade connectors for phase wires and xt60 connectors for the battery

[@jasmineNcisco808]

Thank you. How about the wires that you didn’t cut off? Did you change the plugs or kept it?

[@thatguychris.]

I try to reuse connectors, like the throttle and sometimes hall wire connectors. I set up all my bikes so i can just swap out the controllers quickly and use the same connectors.

[@thatguychris.]

“SM” connectors are the flat black ones

[@محمدرضاحسنی-ج7ت]

Hi, don't worry, I wanted to buy from your computers. What program can I use to contact you and what is the price of these computers and I am able to buy a large number of them?

[@thatguychris.]

The links for the unmodified controllers are listed. If you need a large modification order the controllers need to be prepaid for and will require a further payment when they’re ready to ship.

[@revparsons3tl]

What if I've got 4 shunts

[@thatguychris.]

You can start with one bridge down the middle and see if you like the improvement, or make 3 bridges and send it. Some people just glob solder across the shunts and onto the board too.

[@revparsons3tl]

@@thatguychris. will give it a try mate but 2 off them are taller than the other two

[@thatguychris.]

The manufacturer does that to get the right resistance for their rated specifications, the taller ones lower the resistance, the mod will drop it further allowing it to push out more amps then originally intended.

[@revparsons3tl]

@@thatguychris. so do it to the the taller ones mate

[@thatguychris.]

I’d go with the middle pair. I’m not sure what yours looks like, but it’s not really that important if you’re starting small. The easiest pair to bridge is the best.

[@wafretztv3873]

Is it works on 36v?

[@thatguychris.]

It spins the motor, I did not ride it with 36v only test. It may be too much amps for the battery going up hills and things like that

[@Bimmerboyfloyd]

What display can be used with this controller?

[@thatguychris.]

I don’t use displays, they’re wild inaccurate. I use a voltmeter and the “bike GPS” app

[@thatguychris.]

The voltage meter comes attached to a new throttle and 3 speed thumb switch, it reduces the amount of wire needed to be ran down to one keeping everything looking clean and neat

[@AchimFechters]

but solder iron is a bad fluent for electricity ... in the previous video he didi it right and used a cable between the shunt ( this by the way makes the torque power bigger ,because it lets thorugh more electricity but the motor will not be much faster .. just torqueier )

[@jairogomez4552]

Pero si le haces la camita y todo es que ya sabes tú lo que te haces pillín😂😂😂😂😂

[@jairogomez4552]

Y por casualidad no te has llamado la NASA porque vamos por qué esas manos vamos a los trabajos que haces dejan mucho que vamos no hubiera tenido ninguna pérdida ni hubiéramos tenido ningún problema si tú hubieras estado en la NASA para la construcción del challenger y para la construcción de todos los buenos cohetes que van a hacer tú tienes que estar ahí esa silicona con el cariño que la pones y como la pones en la en la controladora vamos para mí que se ha quedado está embarazada...😂😂😂😂😂

[@michaelcordier9717]

wer will das sehen wie du stundenlang dein tuch über die controller legst

[@thatguychris.]

I’m not sure what you’re asking but I used the felt from a fabric flowerpot to cover the controller. The wicker basket provided enough airflow for cooling.

[@Ebikemikeny]

how many amps can you push after the shunt