The official 36" zelos twin modding thread

[CraigP]

Baller, since this is a 36" thread, I assume that's the size boat you have. Putting 20KW into a boat that size just sounds way over the top! I doubt you could have enough prop on there to even get it to bite. That's 333A at 8s on EACH motor! Surely you got a typo going on there...

[MADRCER]

Greetings to all!Received my boat like a week ago and had it's maiden run,impressed with the stock speed which was at 54mph after reading all the 70 pages here i see that the best mod to do is changing props(i want to stay with stock electronics for now).Now my question is,how do i come in contact with the member dasboata to order some props also is there any another person who i can contact for making me props?I have no idea on props so it must be some one that i can trust he will do the job correct.This is my first and im trying to learn as much as i can from this place.Thank you all

You can reach Dasboata from this site with a PM and he can let you know what he has that would work for you. I have a couple of good props that TRUCKPULL has done and he is on this site as well. The OSE store front sells prepped props from time to time when available or check the "Swap shop" section and you might find some there already prepped or the "Prop talk" section on here and I'm sure you can find more vendor options.

[Team Lucas]

rc jim, I agree with MADRCER

[Team Lucas]

Greetings to all!Received my boat like a week ago and had it's maiden run,impressed with the stock speed which was at 54mph after reading all the 70 pages here i see that the best mod to do is changing props(i want to stay with stock electronics for now).Now my question is,how do i come in contact with the member dasboata to order some props also is there any another person who i can contact for making me props?I have no idea on props so it must be some one that i can trust he will do the job correct.This is my first and im trying to learn as much as i can from this place.Thank you all

Hi jim . This boat is impressive as a RTR. You can get mid to upper 60's maybe 70, with keeping stock electronics, and doing a couple small changes. I have Dabosta X447 props, OSE flex shafts, ( I tried Jeffs wire drives, but did not like the water issue, but some have fixed that issue and they are great drives). I run 6s each. SHARPED RUDDER, and use 220 grit wet/dry sand paper on what touches the water.
Hold on to your ass, because it will fly!!!!' Very impressive RTR with little changes. Problem is ..."it will fly" .... yep grow wings and flip at around low 60's. That's when the trimming comes in... ( adjusting drives and center of gravity, with battery placement.) Have a great time with it...it's a head turner for sure!

[RcJim]

You can reach Dasboata from this site with a PM and he can let you know what he has that would work for you. I have a couple of good props that TRUCKPULL has done and he is on this site as well. The OSE store front sells prepped props from time to time when available or check the "Swap shop" section and you might find some there already prepped or the "Prop talk" section on here and I'm sure you can find more vendor options.

Hi jim . This boat is impressive as a RTR. You can get mid to upper 60's maybe 70, with keeping stock electronics, and doing a couple small changes. I have Dabosta X447 props, OSE flex shafts, ( I tried Jeffs wire drives, but did not like the water issue, but some have fixed that issue and they are great drives). I run 6s each. SHARPED RUDDER, and use 220 grit wet/dry sand paper on what touches the water.
Hold on to your ass, because it will fly!!!!' Very impressive RTR with little changes. Problem is ..."it will fly" .... yep grow wings and flip at around low 60's. That's when the trimming comes in... ( adjusting drives and center of gravity, with battery placement.) Have a great time with it...it's a head turner for sure!

Thank you both for the tips and suggestions.Really appreciate it

[fweasel]

Greetings to all!Received my boat like a week ago and had it's maiden run,impressed with the stock speed which was at 54mph after reading all the 70 pages here i see that the best mod to do is changing props(i want to stay with stock electronics for now).Now my question is,how do i come in contact with the member dasboata to order some props also is there any another person who i can contact for making me props?I have no idea on props so it must be some one that i can trust he will do the job correct.This is my first and im trying to learn as much as i can from this place.Thank you all

Jim, the Dasboata x447 props will get you right around 70mph with stock electronics, good batteries, and a good setup. If you don't to be at the bleeding edge of what the stock setup can handle, you could ask Chris (Dasboata) about cutting some 447 props down to 45mm for you. They would have more pitch than a standard pair of 445 props with a slightly small diameter than the 447's. Good luck!

[baller69]

nope i had custom props made.each motor is 2700kv and runs on 8s each so u r bang on!

[baller69]

Baller, since this is a 36" thread, I assume that's the size boat you have. Putting 20KW into a boat that size just sounds way over the top! I doubt you could have enough prop on there to even get it to bite. That's 333A at 8s on EACH motor! Surely you got a typo going on there...

nope not a typo.each motor is a cordova 2700 kv made to runs on 8s power each for a total of 16s.i have been in touch with a very knowledgeable prop maker and he made me two that he think might stand a chance.anyway wheather it goes fast or blows up it will make for cool video!

[CraigP]

Well that makes you the Speed Demon of the month! Since you got props, need to get that amperage coupled troughout the system. My calculations show you'll need 8AWG, high strand wire no more that 5" in total length, each side. After that, it goes to 6AWG and you can get to about 8.5" of wire. If you used small wire, you'll just not couple the battery power to the ESC. The amperage level is your biggest challenge. Obviously need to use the largest, highest quality connectors you can get (Castle Connectors). You'll also need close to 1Farad of capacitance external to the ESC on EACH side. At this amperage, the wires have enough meaningful inductance to cause significant voltage surges at the ESC. They won't survive without a huge external cap board. They don't sell these, you have to make them. If you want help there, I will supply part numbers you can use to build this cap board. Maybe we can keep this speed demon from going Chernobyl on you! I hope you got a long lake to get this thing opened up on!

[Erroneous]

Ok so AGAIN... NOT "16s".. 16 cells yes.. The s in "16s" is for series. 16s voltage is pushing close to 60v "TOTAL". 8s2p is what you have = 2 8s systems in parallel. Apologies but this "Im running a total of 12s or 16s in my Zelos bugs me.

[baller69]

Well that makes you the Speed Demon of the month! Since you got props, need to get that amperage coupled troughout the system. My calculations show you'll need 8AWG, high strand wire no more that 5" in total length, each side. After that, it goes to 6AWG and you can get to about 8.5" of wire. If you used small wire, you'll just not couple the battery power to the ESC. The amperage level is your biggest challenge. Obviously need to use the largest, highest quality connectors you can get (Castle Connectors). You'll also need close to 1Farad of capacitance external to the ESC on EACH side. At this amperage, the wires have enough meaningful inductance to cause significant voltage surges at the ESC. They won't survive without a huge external cap board. They don't sell these, you have to make them. If you want help there, I will supply part numbers you can use to build this cap board. Maybe we can keep this speed demon from going Chernobyl on you! I hope you got a long lake to get this thing opened up on!

yup u r right once more.i am running 8 awg wire with 8mm bullets and yes again external caps also.some of my esc's i even run duel 8awg wires positive and negative in fact with 12000 uf cap packs.i have lots of speed run cars and boats and i know the rules of electricty and current and amp draw also but i really do respect and appreciate your input. thank you.dont worry i will post a video of this 36 cat and my 48 inch zelos with a 21 hp lehner motor that runs on 10s also.cheers! p.s. at worst well it blows but it would still make for good video jk.thanks for your help in advance.

[baller69]

Smh

your too much.u really have it out for me dont u and for what reason i am curious to know.when i joined here long ago i think u were the first person i messaged and since then all down hill well any way i will be sure to post videos when i take out the 36 and for u that havent seen here is the 48 zelos i did with a 21 hp 1/5 scale lehner motor in it running on 10s and even did all water lines to match and quick pic of 36 after i had it hydro dipped.thanks

[baller69]

his post are very entertaining say the least. worlds longest boat build hahah. what do you expect from a guy who thinks his zelos is going to be running on 16s lmao

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sorry bro maybe i didnt make it clear as u can see in the pics the 36 and 48 are each done but like i said time is a issue.where i live in toronto a city of almost 3 millon people there is exactly a little cove a run away to and drive my boats and be back home in 5 min.sorry bro for me the rel world is busy and i have tons of other crap and builds i am doing.i have a 16s 1/5 fg i just did and a 12s mugen mrx5 rossa world speed run comp car aother 12s 2000 kv speed run rustler rossa comp car and ton of crap so i am sorry but i am sure they will probably later then sooner in the instance run and when i do i am sure to post vids.sorry to hurt all your feels here with not running the boats yet but they rae and i will repeat are both finished.where u got still being built when i posted pics of them done along ago is beyond me.so please let me just beg for your forgiveness now and make this all better.thank you!

[baller69]

his post are very entertaining say the least. worlds longest boat build hahah. what do you expect from a guy who thinks his zelos is going to be running on 16s lmao
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oh sorry forgot to add when u play in the big leagues u need to have a charger that can charge bigger then your 4s battery like yours typically does so mine does all the way to a 14s lipo and it gets used for purposed much bigger then your 4s zelos batteries bahahahahah!!!!!!!!!!oh and i know u have never seen much less handled or owned any batteries such as a 8s lipo but i will show u what one of mine looks like. your to hardcore for me by any means. ROFL!!!!!!!!!!!!!!

[Doug Smock]

Second clean up here fellas.

Please knock it off with the bashing. These are after all "toy boats".

The "ignore" feature on the forum works well if someone is getting under your skin.