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Old 06-11-2007, 04:20 PM   #1
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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.
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Old 06-11-2007, 05:33 PM   #2
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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
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Old 06-11-2007, 05:37 PM   #3
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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.
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Old 06-11-2007, 06:20 PM   #4
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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.
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