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Old 07-15-2006 | 09:12 PM
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piper_chuck
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From: Columbia, SC
Default RE: engine tuning - pinch test

ORIGINAL: Cyclic Hardover


ORIGINAL: Neddy191

So when I think my engine is fairly well tuned what am I looking for when I lift the plane and point the nose vertical? What throttle setting should I be at and how long should I hold it there?
Your looking for a bit of an increase in rpms when you point it up and to make sure the engine does not sag...
Yup, that's exactly what I do, at full throttle. It should increase a bit and not sag. Make sure to hold it up there for a good 5 to 10 seconds, merely pointing it at the sky and lowering immediately won't confirm the engine will keep pulling when you're taking off, or doing something vertical like a nice big loop.