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HomeRC & Power✈️Aircraft🚁HelicopterEngines Plugs Mufflers Fuel › 91 SX-H Ringed Special Competition w/Pump
09-04-2006 11:28 PM  14 years ago
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a/c man

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Broken Arrow Oklahoma

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91 SX-H Ringed Special Competition w/Pump
what temp thes this motor run good at i have a curtis pipe on it
a/c techs know all the hot spots
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09-05-2006 10:03 PM  14 years ago
JRMAN

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Macedon, New York

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I have yet to hear anyone give numbers for the temp. But from what I hear if you can hold your finger on the back plate without extreme pain you're good. If you put you finger in the back plate and it sizzles then it's too hot.

The less time I have the more I get done.
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09-06-2006 02:43 AM  14 years ago
Unbalanced

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Melbourne, Australia

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That would be too hot for a 90SZ - shouldn't be more than reasonably warm at the backplate.

Sorry don't know the head temp - I tend to tune where it is smooth under full power - midrange and unloaded, just short of hitting the 2 stroke tone across the range. I check the top by making sure it drops back to idle reasonably quickly after hitting hold following a climb out and I check the backplate temp with da finger after an extended hover.

But there are plenty of better tuners than me out there.

Jeff
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09-06-2006 03:42 AM  14 years ago
a/c man

rrNovice

Broken Arrow Oklahoma

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this motor has pump on it so no back plat i have a on bord temp sensera/c techs know all the hot spots
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HomeRC & Power✈️Aircraft🚁HelicopterEngines Plugs Mufflers Fuel › 91 SX-H Ringed Special Competition w/Pump
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