Go Back  R/C Tech Forums > General Forums > Electric Off-Road
Thinking about Going Brushless 1/8 >

Thinking about Going Brushless 1/8

Thinking about Going Brushless 1/8

Reply

Old 08-15-2010, 07:07 AM
  #1  
Tech Master
Thread Starter
iTrader: (114)
 
2fst2c's Avatar
 
Join Date: Oct 2008
Location: Martin, MI
Posts: 1,939
Trader Rating: 114 (100%+)
Default Thinking about Going Brushless 1/8

Ok, so I'm a nitro guy and have been thinking about playing with a 1/8 E buggy.. I know most guys run them on 4 or 5 cell lipos. Can it be done on 2s lipos and be competitive? I am wondering mainly about the efficiency. Would a 2S with say a Neu 1415/1D 4100kv motor or similar perform as well as a 1512 1800kv on 3 or 4 cell as far as run times, Heat generated, Strain on ESC etc..? Any of you run a 2S setup in 1/8? Thanks for any info you can give me.
2fst2c is offline  
Reply With Quote
Old 08-15-2010, 08:00 AM
  #2  
Tech Elite
 
morgoth's Avatar
 
Join Date: May 2010
Location: Belgium
Posts: 2,518
Default

Your setup will draw loooots of amps. This will result in heat and I will not be efficient. Go at least with a 4S setup for 1/8 scale.
morgoth is offline  
Reply With Quote
Old 08-15-2010, 08:59 AM
  #3  
Tech Master
iTrader: (39)
 
Join Date: May 2010
Location: Great Falls, MT
Posts: 1,064
Trader Rating: 39 (100%+)
Default

1/8 buggies are heavy and you can't run 2s to power one. I'm a former nitro guy myself and can testify that electric in 1/8 is a kick like no other. My only downside to running 1/8 e-buggy is that the torque destroys tires prematurely. I've spun off a new set of tires in as little as 2 trips to the track.
If I played with the ESC programming I'm sure I could get that down but its kinds of fun to pull the throttle and have all 4 tires balloon up like a drag doing its prerun burnout. On 4s 5200 Turnigy batteries I get almost 30 minutes of run time and it stays cool.
Cody01 is offline  
Reply With Quote
Old 08-15-2010, 09:44 AM
  #4  
Tech Master
Thread Starter
iTrader: (114)
 
2fst2c's Avatar
 
Join Date: Oct 2008
Location: Martin, MI
Posts: 1,939
Trader Rating: 114 (100%+)
Default

Thanks for the replies..I'm curious because I see the Kyosho VE is meant for 2s or 3s Max. Is it a competitive buggy in the real world? I know it can be in the hands of a Pro but the average A-B Main racer?
2fst2c is offline  
Reply With Quote
Old 08-15-2010, 09:57 AM
  #5  
Tech Master
iTrader: (2)
 
scwrod's Avatar
 
Join Date: Apr 2008
Posts: 1,421
Trader Rating: 2 (100%+)
Default

Originally Posted by Cody01 View Post
1/8 buggies are heavy and you can't run 2s to power one. WRONG
My only downside to running 1/8 e-buggy is that the torque destroys tires prematurely. I've spun off a new set of tires in as little as 2 trips to the track.If I played with the ESC programming I'm sure I could get that down but its kinds of fun to pull the throttle and have all 4 tires balloon up like a drag doing its prerun burnout. On 4s 5200 Turnigy batteries I get almost 30 minutes of run time and it stays cool.
If you are going through tires that quick you either need to work on your setup or you trigger finger. I need to know your setup before I can believe the 30 minutes. Is this practice or race condition?


You can run one on 2s. We run them in an indoor track on 2s only. You have to be smart with the gearing and batts. I use the same 2200kv I use for offroad. With all that being said. It is hard on the batts but it is manageable. a 2s setup would not work on a large outdoor track unless there was a 2s only rule. I would not try to run 2s outdoors. It does work on small indoor tracks and is alot of fun and some really close racing.
It is almost like a spec class. Good close racing that boils down to driver ability.
In This video everyone is on 2s.
http://www.youtube.com/watch?v=NtplLrUxUtw
scwrod is offline  
Reply With Quote
Old 08-15-2010, 11:13 AM
  #6  
Tech Addict
iTrader: (3)
 
fallguy's Avatar
 
Join Date: Aug 2009
Posts: 646
Trader Rating: 3 (100%+)
Default

2S never tried it but like posted might be OK for small tight tracks (ones made for 12th and 10th scale)

im running 3S on my hyper 9e and think it could use more top end... still gearing it up to see where it starts to get hot. but with 15t it could be faster and its not getting that warm.
fallguy is offline  
Reply With Quote
Old 08-15-2010, 03:03 PM
  #7  
Tech Elite
 
hakmazter's Avatar
 
Join Date: Nov 2007
Posts: 2,468
Default

You can run a 1800-2100kv motor with a 17 tooth pinion on a hobbywing 80 amp esc all day long and it will not heat up the battery, motor, or esc and it can be competitive on a track that size or slightly larger depending on the jumps.
hakmazter is offline  
Reply With Quote
Old 08-15-2010, 03:14 PM
  #8  
Tech Fanatic
iTrader: (2)
 
jmcvicker's Avatar
 
Join Date: Jan 2008
Location: SE Pennsylvania
Posts: 814
Trader Rating: 2 (100%+)
Default

I run a Castle 1800kv with 4S but it's real nice on 3S for slightly tamer results and indeed could run 2S but would only do it on a small indoor layout.
jmcvicker is offline  
Reply With Quote
Old 08-15-2010, 07:55 PM
  #9  
Tech Master
Thread Starter
iTrader: (114)
 
2fst2c's Avatar
 
Join Date: Oct 2008
Location: Martin, MI
Posts: 1,939
Trader Rating: 114 (100%+)
Default

Thanks for all the info. I know in the winter, we run on an indoor track. It's like 80x100 and I think 2s would suffice there. That would give me time to get some 3 or 4S lipos for outdoor season if I decide I like it.
2fst2c is offline  
Reply With Quote

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
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
Trackbacks are On
Pingbacks are On
Refbacks are Off


Thread Tools
Search this Thread

Contact Us Archive Advertising Cookie Policy Privacy Statement Terms of Service