Go Back  R/C Tech Forums > General Forums > Electric Off-Road
Rookie with gearing question SC10 brushless spur gear. >

Rookie with gearing question SC10 brushless spur gear.

Rookie with gearing question SC10 brushless spur gear.

Reply

Old 04-22-2011, 05:59 PM
  #1  
Tech Addict
Thread Starter
iTrader: (10)
 
savannahmick's Avatar
 
Join Date: Jan 2011
Location: Savannah Georgia
Posts: 631
Trader Rating: 10 (100%+)
Default Rookie with gearing question SC10 brushless spur gear.

I have a SC10 b.less with stock electronics and I am trying to get rid of a little torque/wheelspin out of slow corners. Anyway I bought a 84 tooth spur to replace the 87 tooth is this a to small of change to make a difference? Also will my motor run hot with this spur gear or is that only with a pinion change? Thanks for any input on getting a LITTLE less wheelspin and more top speed but like I said just a little! I'm running top five in club race but can't accel out of corners like I need to and I have tried many tires and susp. tweaks and hopups and 5000wt diff oil which did help some. Thanks Again!
savannahmick is offline  
Reply With Quote
Old 04-22-2011, 06:22 PM
  #2  
Tech Apprentice
 
SCTom's Avatar
 
Join Date: Oct 2010
Posts: 94
Default

Dont change your gearing, that wont help your condition. Add some rear toe in to the rear end and a couple oz. of weight in the rear. More importantly try to be less agressive on the throttle.
Tom
SCTom is offline  
Reply With Quote
Old 04-22-2011, 07:10 PM
  #3  
Super Moderator
iTrader: (31)
 
racer1812's Avatar
 
Join Date: Nov 2008
Location: RIP 'Chopper', 4/18/13 miss you bud:(
Posts: 15,113
Trader Rating: 31 (100%+)
Default

I don't fully agree Tom, the gearing change can help with some wheel spin to a point, how much you will notice depends on the driver. And only use it as a tuning add as long as you stay within the desired temp range.
OP how much help it will be, not sure, try it and find out. The 3 teeth on the spur will be about the same as adding a tooth to the pinion, not exact but close.
racer1812 is offline  
Reply With Quote
Old 04-22-2011, 07:13 PM
  #4  
Tech Adept
iTrader: (1)
 
Join Date: Dec 2010
Posts: 156
Trader Rating: 1 (100%+)
Default

correct on the spur gear. 3 teeth smaller on the rear is like one tooth larger on the pinion. 3.4 is the correct amount I believe. but 3 is close enough.
as long as motor temps dont go up to high you will be fine.

rear toe will help you track straighter if thats a problem. if its just wheel spin then add weight as noted. have you slid the battery back yet?
hammer down is offline  
Reply With Quote
Old 04-23-2011, 01:15 AM
  #5  
Tech Adept
iTrader: (6)
 
Join Date: Apr 2011
Posts: 218
Trader Rating: 6 (100%+)
Default

Anything wrong with just loosening the slipper? Trying to do it your way is like taking down the torque by shifting up. It's more stress on the motor / esc for sure.

Yet another option is to get a radio with a throttle curve / expo.
BoneDoc is offline  
Reply With Quote
Old 04-23-2011, 02:49 AM
  #6  
Tech Addict
Thread Starter
iTrader: (10)
 
savannahmick's Avatar
 
Join Date: Jan 2011
Location: Savannah Georgia
Posts: 631
Trader Rating: 10 (100%+)
Default Yeah I know getting a transmitter with throtlle expo would be better.

A have already tried toe-in and other adjustments. Like I said there are only three or four trucks out of twenty that I can't catch or run with so my truck is set-up nice. I was looking for cheaper way to reduce wheelspin until I can buy new transmitter. Thanks Again! What is a good temp for the 3300kv Reedy?
savannahmick is offline  
Reply With Quote
Old 04-23-2011, 04:47 AM
  #7  
Tech Adept
iTrader: (6)
 
Join Date: Apr 2011
Posts: 218
Trader Rating: 6 (100%+)
Default

Anything less than 200 F for an inrunnner is acceptable.
BoneDoc 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