Go Back  R/C Tech Forums > General Forums > Nitro Off-Road
Head Shims for 30% >

Head Shims for 30%

Head Shims for 30%

Old 06-23-2009, 04:27 PM
Tech Master
Thread Starter
iTrader: (52)
thenova70ss's Avatar
Join Date: Jun 2008
Location: Arkansas
Posts: 1,555
Trader Rating: 52 (100%+)
Default Head Shims for 30%

Guys i have a AXE Rossi Cobra .21 motor and would like to know if i need to add any shims are take in out to start running 30% fuel and how many shims should be on the motor to run 30%.All so what do you guys think about O'Donnell fuel.
thenova70ss is offline  
Old 06-23-2009, 04:32 PM
Tech Fanatic
iTrader: (1)
shesha's Avatar
Join Date: Apr 2007
Location: Kuwait
Posts: 826
Trader Rating: 1 (100%+)

As a general rule of thumb 0.6 shims in total for most engines.

Check the manual if am not mistaken odonnel fuel is mainly synthetic. Some engines like to have a caster and synthetic in the mix.
shesha 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 - Do Not Sell My Personal Information

Copyright 2018 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.