R/C Tech Forums

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

Reply
 
Thread Tools Search this Thread
Old 06-11-2007, 03:20 PM   #1
Tech Adept
 
Join Date: Feb 2006
Posts: 155
Trader Rating: 6 (100%+)
Default tuning MGT .21

When I hit the gas on my truck (AE MGT with the .21 MGT motor) the truck stalls when it gets up to around 180deg temp. I have put new gas, new glow plug. It idles just fine and never stops. I tried raising my low end needle to see if that was the problem. Still stalls. I raised my high end to see if that could help. Nope. Now what should I check now? Compression on the motor looks OK.

I can't even get it to go on the second gear before it stalls.

The previous owner was running 30% and I am running 20%. Maybe just a serious tunning needed.
falconcg is offline   Reply With Quote
Old 06-11-2007, 04:33 PM   #2
Tech Lord
 
20 SMOKE's Avatar
 
Join Date: Dec 2003
Location: HVR_ WEEKI WACHEE FL
Posts: 10,293
Trader Rating: 101 (100%+)
Default

if he was using 30 and your using 20 thats one thing. make sure your glow plug is for your fuel and air/humitidy rating , try getting it to accelerate ( bottomend) and then get the top end. check here for glow plugs ratings http://www.outlawrc.com/glowplugs.htm
__________________
Jamie W
*Team Tekin*TLR Racing*DE Racing*92 Zero Design*AKA*DDHRC*
20 SMOKE is offline   Reply With Quote
Old 06-11-2007, 04:37 PM   #3
Tech Apprentice
 
MikeWz's Avatar
 
Join Date: Mar 2005
Location: Wenham, Mass/Hauppauge, NY
Posts: 88
Send a message via AIM to MikeWz
Default

The problem could be a shim. To run the TTR .21 on 30% nitro it was necessary (or at least recommended) to run another shim or two under the cooling head. Pull the cooling head and see how many shims are under it.
MikeWz is offline   Reply With Quote
Old 06-11-2007, 05:20 PM   #4
Tech Adept
 
Join Date: Feb 2006
Posts: 155
Trader Rating: 6 (100%+)
Default

Thanks for the help guys. Got it running smoothly and way fast with lots of torque. What I did was...put it back to factory settings and go on from there.

Wow, that was simple. Thanks for the glow plug page too.
falconcg is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
Tuning Class..any SIFU (klang valley) offer engine tuning class??.. azmin Malaysian R/C Racers 17 06-20-2008 09:42 PM
Engine Tuning 101 (General Tuning) Kemorc Onroad Nitro Engine Zone 41 11-19-2007 06:04 PM
beginner questions re: car tuning and motor tuning! Captjono Rookie Zone 5 02-19-2005 11:01 AM
beginners question re: car tuning and motor tuning! Captjono Electric On-Road 5 02-19-2005 02:01 AM
tuning sloedown Nitro On-Road 5 08-19-2003 05:33 AM



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 04:40 AM.


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