blackjack 26 with Velineon

[jkypta]

Hi i recently bought a tottaled blackjack 26 it has steerable outdrives and all stock hardware, I paid 50$ it needed some body work but it have it looking great just sprayed it with paint acccaully but my question is how well will the Velineon 3s work in it? I made me a cooling jacket for motor and esc so over heating wont be an issue but has anyone tried this? please help ive read all the posts about the blackjack 26 and saddly none answered what i needed

sorry about spelling

[Stephavee]

Yah high Kv motors dont like boats the 1/10 Scale vxl is a 3500 kv system and thats to much rpm! i have tried a few car/truck motor/esc combos before on small monos just because i had them laying around but they just arent suited well for boats. you want a low kv motor -2200kv for the blackjack the stock motor was a 36mmx50mm can and a 1500kv. this is well suited for this boat. i recomend you start with the stock motor and get the proboat 60a esc. but if you do run the vxl use the stock prop or smaller and post a video! i want to see how it does in a cat! good luck have fun!

[Diesel6401]

Heat will be an issue. The motor is not a very good choice IMHO. The kv is to high liked mentioned and on 3s the rpm's will be way to high. Boats like torque (lower kv motors). The bigger the boat the more torque (lower kv). A good motor for your blackjack would be something in the 1800-2000 kv range on 4s. In boating target unloaded kv is mid to upper 20k unloaded - low to mid 30k unloaded. The best thing I can tell you and will save you a headache is everything about cars typically does not work at all in boating. The amp loads are extremely higher in boating. Trust me on that one, most guys here myself included have land air and sea rc's and the crossover to boating is a lot different then any of the others.

I never was a fan of the velioneon motors seemed like a over-priced Feigao... JMHO

[jkypta]

i had bought only a hull with hardware and i got like tons of velineons laying around lol IDK y but i do and i solved over heat issue and im gunna video the wave chopper when the lake thaws out but the lil wave runner is killer on a 3s velineon flooring it at a dead stop it leaped over a SV27r no problem and ran a way from the sv it did hit thermal after 5 min, so i figued if i water cool it i should be fine if i let it rest between batterys of course

[jkypta]

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[Stephavee]

I had mine going out on over load protection! but i did the same thing for cooling! if you have more than one of those vxls around you could do a twin! that might work better? youll find that if you take some plastic and make a box around the cooling fins on that esc and seal it up it will work better.

[jkypta]

what size boat an prop did u use? and by seal it you mean have water flow thru the heat sink? i know that its submergable lol it spent a year on my scale truck that lived in creeks only lol the velineon is pre tough and how did u get load protection? isnt that when you have to much voltage?

[jkypta]

the velineon claims to have no motor limit so what if i put a lower kv motor to it? im just trying to save some money and go over 30mph i also thought about putting fans inside the hull, i know the ambiant temp will get high from that but it only has to last my batterys life then it can cool, and do you know of any electric water pumps?

[Stephavee]

I will post pic tomarow im cant now because im on the ship. but all you do is seal off the cooling fins and put water in and out lets the water flow through the fins! i use stock BJ props but my best was a 36mmx55mm. grin racer!

[jkypta]

and it still temped out? where u running a 2s or 3s? lol i ask traxxas how to do this http://www.youtube.com/watch?v=0wNb9Clb_0M
they told me that it will over heat from over gearing, i said heat? who cares its water cooled at for this reason, that was last time they helped me EVER lol they take notes about there customers

[Stephavee]

It would got into protection mode because of the high amp draw. it would cut throtle way down and after i unpluged and pluged the bat back in it was fine for a few min more. It takes alot of torque to keep a boat up and out of the water. I'll post a video of my homemade 26" deep vee 3sVXL tomarow. but for now my extra VXL system is in my traxxas blast rescue boat.

[jkypta]

how fast is the lil blast? being brushless lol

[Stephavee]

OK i just uploaded the only video of my vxl boats. but for the other questions you asked about. IDK how fast the blast is because the drive line u-joints dont stay together long enough to find out...i do plan on upgrading to a flex shaft someday. I found one this website that guys have used the water pumps out of swifer wet jets for cooling. This is the video i uploaded it just for you. i didnt realy think it was cool enough to go on youtube but it sure wont be the dumbest one.

http://www.youtube.com/watch?v=1LKVdOhlth0&feature=colike

[jkypta]

AWESOME!!!!!!! DEFFINTLY INSPIRATION FOR ME LOL honestly the velineon impressed me in ur vid! also it impressed me tonite, we went out scale crawling an im only person with a velineon and no matter how deep i was i could throw a rooster tail lol i hydroplaneing a scale truck with TSL superswampers on it i like how u made you esc water cooled, did u drill holes in the fins?

[Stephavee]

I think im going to put the stock BJ26 motor/esc in that yellow boat when i get my new leopard 3674 1700kv motor and seaking 180 esc to put in the BJ!