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Old 11-12-2013 | 02:39 PM
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Jaz240
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From: Dwindle city
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Originally Posted by Bai Shen
I'm running a Go B21 with an OS P3. Right now I've been running O'Donnells 20%. I'm looking at switching to Byron's or Sidewinder 30% as that's what my LHS carries.

What differences will I see? I know I'll need to retune, but will I need to change my glow plug?

Thanks.
You may need to re-shim the head button. Not all engines come shimmed for 30% Nitro. Check with a GO-PRO to be sure. Glow plug change not required. You will see increased Power and more constant idle at the sacrifice of some run time
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