Go Back  RCU Forums > RC Boats > Speed - Electric
Reload this Page >

Acomms Oldschool Boat Motor question

Community
Search
Notices
Speed - Electric For all your electric boating needs.

Acomms Oldschool Boat Motor question

Thread Tools
 
Search this Thread
 
Old 04-28-2008, 05:14 PM
  #1  
jcplinux42008
Member
Thread Starter
 
Join Date: May 2007
Location: Kettering, OH
Posts: 51
Likes: 0
Received 0 Likes on 0 Posts
Default Acomms Oldschool Boat Motor question

Ok my question is will someone point in the direction of some good inrunner brushless motors , i have a 3:1 reduction gear in my boat , i have no way to change the gear ratio , and i want to get a high Kv motor so i can spin faster for the gear , it greatly increases my runtime , and with proper tuning today i got the speed way up , i would like maybe around a 4200 Kv , 540 with a shaft size of 5mm im not worried about that i just would like a website that has a good selection of not too expensive motors. I am currently running an 1800Kv and i know its faster with direct drive , but the runtime is greater with a gear because the motor is always spun up. Plus the boat was really made for a gear drive and a mabuchi 540 motor. I have pics posted in my gallery and i have some videos on youtube.
http://www.youtube.com/profile_videos?user=jcplinux2008 that will take you too my video collection so you can see all of them , although i did not get a video of my best run today and of course it started raingin as soon as i was done so i probably can't run it again today. And also what do you guys think of the ammo motor i know it isn't 4200Kv its like 2300 , but maybe i don't need a 4200 , i am running the sv27 esc so i need to be careful of how far i push it unless keeping the reduction gear will keep my amp usage down below the max , i guess only testing will tell. Thanks in advance for input
Old 04-29-2008, 06:37 PM
  #2  
jcplinux42008
Member
Thread Starter
 
Join Date: May 2007
Location: Kettering, OH
Posts: 51
Likes: 0
Received 0 Likes on 0 Posts
Default RE: Acomms Oldschool Boat Motor question

Ok since no one is responding i will just say it doesn't matter anyways watch this http://www.youtube.com/watch?v=TLTWwFSgHMU and you shall see why , and in case you dont want to watch i can just tell you i killed my spur gear and rigged it for direct drive , i will get a video of it with direct drive now , it is much much faster , i knew it would be i just wanted to get a bigger motor and make it faster with the gear
Old 04-29-2008, 06:45 PM
  #3  
Quicksilver
Senior Member
 
Quicksilver's Avatar
 
Join Date: Jul 2006
Location: Poughkeepsie, NY
Posts: 848
Likes: 0
Received 0 Likes on 0 Posts
Default RE: Acomms Oldschool Boat Motor question

good move, just watch the temps.
Old 04-29-2008, 07:26 PM
  #4  
jcplinux42008
Member
Thread Starter
 
Join Date: May 2007
Location: Kettering, OH
Posts: 51
Likes: 0
Received 0 Likes on 0 Posts
Default RE: Acomms Oldschool Boat Motor question

i am going to still need a prop shaft and prop , it has a real bad shimmy when its running , that is becuase i don't own metric drill bits and i needed to make metric holes so go figure i just rounded out something a little close too what i needed , so the holes are not so straight , and as a result the shaft tube wobbles inside the hull makes a heluva alot of noise , but it will work until i get new u-joints and such. I will post some pics of the new direct drive and me taping around the motor for extra grip , my motor mount is one of the most difficult parts on the whole boat , its plastic so i have to be very careful not to snap in half , the hull i mean , the mount is just a piece of metal with two screw holes , anyways it works , and holds that torquey little motor in place while its in the water so its good to me
Attached Thumbnails Click image for larger version

Name:	Qo40259.jpg
Views:	10
Size:	46.4 KB
ID:	939968   Click image for larger version

Name:	Oj28114.jpg
Views:	11
Size:	40.3 KB
ID:	939969   Click image for larger version

Name:	Ze85907.jpg
Views:	12
Size:	41.8 KB
ID:	939970   Click image for larger version

Name:	Qk22932.jpg
Views:	11
Size:	81.0 KB
ID:	939971  

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service -

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.