R/C Tech Forums

Go Back   R/C Tech Forums > General Forums > Nitro Off-Road

Reply
 
Thread Tools Search this Thread
Old 08-26-2009, 07:08 PM   #1
Moderator
 
Muggydude's Avatar
 
Join Date: Mar 2009
Location: Colorado
Posts: 3,808
Trader Rating: 89 (100%+)
Default OS .21 Break in needle settings?

(About) How many turns out should the low speed and high speed be for my os 21vzb during a heat cycle break in?
Muggydude is offline   Reply With Quote
Old 08-26-2009, 07:12 PM   #2
Tech Master
 
Razathorn's Avatar
 
Join Date: May 2009
Posts: 1,972
Trader Rating: 2 (100%+)
Default

Quote:
Originally Posted by Muggydude View Post
(About) How many turns out should the low speed and high speed be for my os 21vzb during a heat cycle break in?
Depends on what it takes to still be rich and actually warm the motor up. Throw some insulation around the heat sink, start at .5mm out like the manual says, set the idle at the factory position, then lean it out enough to get it started and keeping heat. Note that a race tune on the LSN is just about flush, so if you get to flush, you've probably gone too far. I had to lean mine out a bit to get it to run and spit fuel. Just start where the manual says and lean it until you can keep it going and building heat but still rich. It also depends on what pipe you have and the fuel you're using.
Razathorn is offline   Reply With Quote
Old 08-26-2009, 07:21 PM   #3
Tech Champion
 
JAMMINKRAZY's Avatar
 
Join Date: Jun 2007
Location: Pittsburgh PA
Posts: 6,575
Trader Rating: 17 (100%+)
Default

I break in all of my OS engines at factory settings. Sometimes you will need to lean the top end and or bottom end a few hours to actually get it to stay running, but other than that, factory settings. Don't lean it if it will run at factory. IMO the more fuel, the better for break in. Keep temps at around 200* F. If needed use a piece of tin foil and a heat gun. Always preheat close to 200* before starting.
__________________
-Koby Kubrin-
Thanks to my Sponsors:
Serpent America | Team Novarossi | Desoto Racing | Race AKA | Ridgeway Bodies
JAMMINKRAZY is offline   Reply With Quote
Reply



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search

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



All times are GMT -7. It is currently 12:10 AM.


Powered By: vBulletin v3.9.2.1
Privacy Policy | Terms of Use | Advertise Content © 2001-2011 RCTech.net