Need help to verify products are matching my needs

ESK8 Electronics
1

Hi, i Weight 85Kg and i’m trying to plan the most effective single motor esk8 kit for Cruising around 35 Km/h and have enough torque to climb moderate hills Currently My cart is: Turnigy SK3 6364 245Kv Vesc 6s 25c Batt 83mm wheels gearing ratio of 14:27 (this ratio is not common but i really want a Sprocket Chain and not the rubber. this is the only product i found)

according to the esk8 calc, this kit will go 35Kmh but i dont have the confidence it will do so with my weight and if it will have the right amount of torque for me, should i buy a bigger motor etc please advice and Thanks in advance

yaniv

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2

The wheel pulley assembly looks incomplete

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I have that sprocket kit, haven’t used it yet because its going to be a PIA to drill the wheel sprocket. Its hardened steel, so needs a carbide bit and you have to go slow or you break bits. Let me know how it works for you.

I have the TB 245KV motor and 6s lipo pack, it easily goes 20mph, but I don’t push it past that.

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what ratio do you have now ?

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16/36 (10 chars)

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the sprocket kit will add more speed with less torque, i’m trying to figure out the impact of this ratio change

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I have a 6s Board with the Sk3 245kv, 83mm wheels, x-car beast 150A and a 15mm 13/32t gearing. I´m also about 85 kg. Hitting about 34km/h and goes up most hills ( This ESC can drag some good Amps, so a Vesc will overheat faster with our weight!)

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a vesc overheat problem ? i dont want that … R you satisfied with the beast esc (overheat issue, brakes, smooth acceleration etc) ?

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Vesc starts overheating at 50A, so with 6s its: 50A x 22,2V = 1110W You´ll reach them quickly if going up hill, so Vesc starts powering down. Only downside of the Vesc for me.

Solution: Use a dual drive 6s with Vescs or use a car ESC. Downside of dual: expensive Downside of ESC: Pure and sometimes loud powa! So not as smooth and customizable as an Vesc.

Other option: get a 3rd 3s battery to go with 9s, get a bms for that and use Vesc. Good middle solution! Use a VescX, I didn´t test it with 6s, but it should be able to hold a bit longer, till it powers down.

6s is a cheap solution for me with the X-Car Beast and works really well even if going up hill.

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Do you know some more specific measurements than what is on the ebay page? specifically the distance of the holes from the center, I am trying to design some 3d printed spacers but it is hard without the exact measurements.

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What measurements do you want specifically. Ill get this in the morning when I get back to my office.

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I whipped up a quick drawing in photoshop -

s-l1600.jpg1200×1200 216 KB

alternatively if you don’t have time, just a picture with a ruler next to it for scale would be OK.

thanks a ton -

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Sure thing, I’ll get it together as soon as I get into my office tomorrow.

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thanks so much :slight_smile:

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A-34mm B-4mm C-7mm D-12mm E-45mm

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looks like @yanivdo got it for you. Yell if you need anything else.

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