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Sunstorm 1000 modification

Old 04-24-2010, 06:05 PM
  #1  
WickedMan
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Default Sunstorm 1000 modification

Hello to all you fellow RC "heads"

New to this forum, and just wanted to have some other peoples opinions about my sunstorm convertion.

Im semi new to modification/building boats, so I though i'd give it a shot.

Outlay/Parts:

Hull: Sunstorm 1000 (stripped weight 2kg or 4.4lb.
Engine: KB45-10L 1800kv Brushless Inrunner 2808W. (have a water cooled coil around it, "home made")
ESC: Turnigy AquaStar 90A Water Cooled. (could go for 100A or even 120A, but I think 90A should be enough?)
Power/battery:
2x 5000mAh 6s 20c. (According to some calculations these 2 batteries will hold for about 7 mins? If anyone else knows how calculate this, please do tell how this is done)

These parts weigh about 2kg/4.4lb and combined with the boat it's, yes 4kg/8.8lb total.

It's a pretty heavy boat, but with that engine it should be good? I have tested with the combined weight in my tub (haha) and it seems really stabile, and not to low in the water either, (most of the weight is in the middle of the boat)

The thing that worries me the most is that I have heard that prop size +weight + engine power is a huge factor. Anyone care to teach a newbie these ratios?

The parts are still arriving in the mail, (from China, so it takes a while) but I want to post pics here, and show the progress and maby get some new/better ideas from the lot of you

Thanks in advance

Regards

Wicked

Old 04-25-2010, 06:44 AM
  #2  
ozzie-crawl
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Default RE: Sunstorm 1000 modification

just looking at it you would be up around the 180 amp mark even with a small prop,and spinning around 40,000 rpm
you want around 28,000-30,000 rpm.
Old 04-25-2010, 07:18 AM
  #3  
WickedMan
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Default RE: Sunstorm 1000 modification

So, what you are saying if im not mistaken. The motor is actually to powerfull? Or that my 90A esc is to small?
ORIGINAL: ozzie-crawl

just looking at it you would be up around the 180 amp mark even with a small prop,and spinning around 40,000 rpm
you want around 28,000-30,000 rpm.
Old 04-25-2010, 08:05 AM
  #4  
ozzie-crawl
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Default RE: Sunstorm 1000 modification

how big is your hull (lenght,width), its not a matter of motor being to powerful just not the rite combination of motor,esc,batteries
Old 04-25-2010, 09:48 AM
  #5  
WickedMan
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Default RE: Sunstorm 1000 modification

The hull is:

Lenght: 100cm/40"
Width: 26cm/10"
Old 05-25-2010, 11:23 AM
  #6  
WickedMan
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Default RE: Sunstorm 1000 modification

Well, it's done, and here are a couple of videos.

Here it's done: http://www.youtube.com/watch?v=ms1MYxCFopI

And here is the test run: http://www.youtube.com/watch?v=u5iwMR-7SX0

Hope you enjoy it! I sure did!



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