18S8P Project Board

Esk8 Electronics
#1

I am currently in the starting process of building a 18S8P board ( still ordering parts as I go ) as a at home project and was hoping to get some info from the geniuses here just in case. I apologize in advance if I sound noob-ish.

At the moment I am working on the battery. The cells are molicel P42A and I was planning on using 10 AWG for the wiring with a xt90s connector. Checking all the voltages leveling them all out to 3.66v ( still waiting for my last batch ) before I begin any welding / soldering process. As for the BMS I was planning on using a Xiaoxiang BMS and a smart balancer in parallel. The charge port I planned on using was a 5 pin LP-20 to work with a chisystems charger. VESC wise I wanted to go for Stormcore 100Dx.

Questions I have :
What motors would you recommend for the build?
Is there a enclosure that a company makes for that size, or would I be better off making one?
If you have a better recommendation for VESC, what would you pick for this?

Thanks again for any assistance friends! ( I’m sure I’ll have more questions as I’m building )

5 Likes
#2

Motors 130-170kv range you can use the ultimate esk8 calculator to figure out the kind of torque/top speed you want.

Enclosure depends on the deck you’re using but eboosted makes plenty of enclosures. eboardsperu.com

ESC I’d rather go SKP Solo or MakerX D100s

3 Likes
#3

18s8p is a HUGE battery! I would highly recomend finding a deck and enclosure before you start building the pack.

Magnetic fits 18s8p

Also i think lacroix with the deep enclosure and jotnar/northcamp…as far as i know these are the only options that actually fit 18s8p 21700 batteries

5 Likes
#4

One more vote for

sort out the enclosure and deck first!

10 Likes
#5

If you can bring it down to 16s8p I have a few decks that might work for you.

4 Likes
#6

So after listening to the counsel, I’ve taken it all into consideration.

The motors I’m leaning towards 6384 170kv motors ( most likely flipsky )
The ESC i’d switch is SKP solo ( comes with a little more for the cost )

@tomiboi i’ll dm you to talk about that odashi deck

2 Likes
#7

Another vote on this one…

3 Likes
#8

What gear ratio are you running?
I would highly recommend getting Reacher motors, but it does increase your cost a bit.

2 Likes
#9

I saw them when combing the internet, but I’ll definitely give them a look for the recommendation. I was leaning towards 15 teeth on the motor and 60 teeth for the wheel pulley.

2 Likes
#10

+1 for reachers, they will let you squeeze the most out of that battery and esc :fire:

3 Likes
#11

Another vote for reacher motors here. They’re well worth the cost.

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#12

I’ve seen people run lower KV with lower gearing, but I’m not entirely sure what would be the most optimal configuration for 18s.

#13

Never… ever… again…

Cheap does mean nasty in some cases, flipsky covers both bases.

Can highly recommend saving a few extra pennies for the reachers.

1 Like
#14

It’s a learning experience, so I definitely appreciate the input.

I like what I saw in reachers so I’m locked in on the choice for those.

#15

What drive system are you looking to use?

2 Likes
#16

I recently finished my 18s board. I went with 6385 112kv Reachers and 15/60 pulleys. Can highly recommend this setup

3 Likes
#17

Not entirely true. I’ve haven’t had one fail yet. I reckon the newer BH versions have been a pretty solid motor so far and I’ve used a few. The older ones sure I would agree.

3 Likes
#18

I was planning on going with plain ol’ belts for this one. Just keeping it as simple as I can.

#19

i am confused by this,

a BMS is a cell balancer

and the xiaoxiang is a smart BMS as that :thinking:

2 Likes
#20

It was a Active Balancer. Butchered the wording on that