HELP! cogging

Reply

Old 06-19-2011, 03:10 AM
  #1  
Tech Initiate
Thread Starter
 
yoshimonster's Avatar
 
Join Date: Apr 2011
Posts: 24
Exclamation HELP! cogging

hi i just upgraded my hsp xstr to brushless and lipo

i got the ezrun 8.5t 60amps brushless combo

and i got a zippy flightmax 5000mah 20c 2cell lipo

its cogging a bit when i put the throdle down a bit but then after that its fine.
i dont know if the motor gets hot because i have only driven it about 3-4 times and only up and down the driveway and i havent been able to go full throtle.

my gearing is 23Tooth Motor Gear, 64Tooth Spur Gear

so can i pls have help i think i have to change my gearing but i dont know what to.

Thanks
yoshimonster is offline  
Reply With Quote
Old 06-19-2011, 06:51 AM
  #2  
Tech Elite
iTrader: (17)
 
Join Date: Apr 2009
Posts: 3,055
Trader Rating: 17 (100%+)
Default

It could be slightly overgeared, but not enough to make cogging more than noticeable. I would first check all of your connections very closely, a loose motor plug or solder joint can cause this. If you are sure that every connection is solid then you can try to lower the timing on the ESC settings and see if it improves.
burnineyes is offline  
Reply With Quote
Old 06-19-2011, 02:55 PM
  #3  
Tech Initiate
Thread Starter
 
yoshimonster's Avatar
 
Join Date: Apr 2011
Posts: 24
Default

ok will try
yoshimonster is offline  
Reply With Quote
Old 06-20-2011, 01:26 AM
  #4  
Tech Initiate
Thread Starter
 
yoshimonster's Avatar
 
Join Date: Apr 2011
Posts: 24
Default

hi my conectors that conect the motor from esc are just blue bullet conectors that arnt gold plated just greyish medal that you cramp. i brought them down at the local hardware and i just wanted to know if there good enough or do i go and buy some hobby-grade gold plated bullets that you solder

Thanks
yoshimonster is offline  
Reply With Quote
Old 06-20-2011, 01:45 AM
  #5  
Super Moderator
iTrader: (310)
 
nexxus's Avatar
 
Join Date: Dec 2005
Location: Perth, Australia
Posts: 8,487
Trader Rating: 310 (100%+)
Default

Originally Posted by yoshimonster View Post
hi my conectors that conect the motor from esc are just blue bullet conectors that arnt gold plated just greyish medal that you cramp. i brought them down at the local hardware and i just wanted to know if there good enough or do i go and buy some hobby-grade gold plated bullets that you solder

Thanks
There's your problem!

They won't handle the amp load, spend some $ on decent connectors!
nexxus is offline  
Reply With Quote
Old 06-20-2011, 08:58 AM
  #6  
Super Moderator
iTrader: (52)
 
Cpt.America's Avatar
 
Join Date: Mar 2009
Location: Washington State
Posts: 11,084
Trader Rating: 52 (100%+)
Default

Originally Posted by nexxus View Post
There's your problem!

They won't handle the amp load, spend some $ on decent connectors!
Not true at all.. if you measure the resistance difference between those and a gold plated bullet connector, it will be practically nil. The only advantage to a gold plated connector, is corrosion resistance. This is NOT your issue.
Cpt.America is offline  
Reply With Quote
Old 06-20-2011, 10:58 AM
  #7  
Tech Elite
iTrader: (17)
 
Join Date: Apr 2009
Posts: 3,055
Trader Rating: 17 (100%+)
Default

The resistance between a gold bullet connector and a very high quality butt connector may not be much when you measure the connector itself. The difference is the quality of the crimping and the quality of the butt connector compared to the quality of the bullet and solder joint. I would bet money this is the problem.
burnineyes is offline  
Reply With Quote
Old 06-22-2011, 03:09 AM
  #8  
Tech Initiate
Thread Starter
 
yoshimonster's Avatar
 
Join Date: Apr 2011
Posts: 24
Exclamation

well i just brought some conectors for my esc and motor if it doesn't fix it then i will tell you
yoshimonster 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