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Old 06-17-2009, 01:58 PM   #1
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Default Motor temp and Temperature guns

With the reflectivity of all the motor cans, how are you guys getting accurate temperature readings?

The temp guns that work well for nitro motors are giving me much higher readings than they should because their emissivity ratings can't compensate for the reflective metal.

So instead of buying a $400 temp gun, have any of you had good results from spray painting the motor can flat black?

What are other cheap, effective ways to get accurate readings?

Thanks
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Old 06-17-2009, 02:20 PM   #2
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The $30-40 O'Donnel TGX-1 has adjustable emissivity setting. Hope that helps...

I have one, and it does not give you any tips on changing emissivity. It pretty much just tells you to go on the internet to find out what settings to use...

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Old 06-17-2009, 02:37 PM   #3
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Quote:
Originally Posted by xevias View Post
With the reflectivity of all the motor cans, how are you guys getting accurate temperature readings?

The temp guns that work well for nitro motors are giving me much higher readings than they should because their emissivity ratings can't compensate for the reflective metal.

So instead of buying a $400 temp gun, have any of you had good results from spray painting the motor can flat black?

What are other cheap, effective ways to get accurate readings?

Thanks
Small piece of black tape or black permanent marker on a spot of the can.
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Old 06-17-2009, 08:32 PM   #4
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If your using a decent gun and not a $10 POS it shouldnt be an issue..... we tested by painting shiny head buttons years ago to see if there was any difference.... there wasnt any

If it bothers you, point it at the sticker or something..... most motors are the hotest near the endbell
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