Correct pinion?

Old 10-31-2011, 09:24 PM
  #1  
Tech Regular
Thread Starter
 
RickSlick's Avatar
 
Join Date: Jun 2011
Location: Deerfield Beach Florida
Posts: 304
Default Correct pinion?

I am building an AE B4.1 kit. I know the RTR typically runs a 81T spur with 21T pinion gear.
The Castle motor I am going to use recommends from 12-18T pinion with a 87T spur gear.
When I look at the Team Associated and A Main Hobbies sites, this smaller pinion is not available. Why would I not want to run a similar setup as the RTR B4.1? I know the motors are a bit different (my kit will have a 4600kv motor while the RTR has a 3800kv).
I am thinking a 21 or 22T pinion with the 81T should be a good place to start...?
If not buying the Team Associated brand pinion, what other manufacturers can I use? I see by looking at other pictures of other makes, the teeth appear different.
RickSlick is offline  
Old 11-01-2011, 07:58 AM
  #2  
Tech Champion
iTrader: (21)
 
MarkA's Avatar
 
Join Date: Aug 2001
Location: Corvallis, OR
Posts: 9,161
Trader Rating: 21 (100%+)
Default

The more powerful the motor, the smaller the pinion you need to help control the heat and keep the motor operating in the proper rev range.

That being said, Castle's stuff tends to run cool and that motor should be fine geared like an 8.5 which is typically ran at @21 pinion anyway.

If you do find yourself needing more pinion gears in the future, I've always been pleased with the Robinson brand of gears.
MarkA is offline  

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 -

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