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Old 03-07-2009, 05:33 PM   #1
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Default proper temperature ?

Hi,
what is the correct operating temp for a nitro engine ?
what is a dangerous temp?
i have been trying to tweek my engine and when i think it's sounding and performing well, it hits temps of about 240-250. where i bought it from said keep it at or below 210, but i have seen others say 250 is ok.

what is your opinion?

thank you
Dave
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Old 03-07-2009, 06:31 PM   #2
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If it runs good at 250, then run it at 250. Also clean out the top of your temp gun with a cue tip so it gives a more accurate reading. My engines normally run fine at 220, but I tune by performance and smoke, closely monitoring temps though. So if it is at 270, neverless, I would richen it up. I try not to get much above 260 though.
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Old 03-07-2009, 06:47 PM   #3
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Global warming might push the optimal temp up a bit but I would not run over 130 degrees for safety.
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Old 03-07-2009, 06:47 PM   #4
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Throttle,

I break-in my engines over 250f. You need the high heat to properly anneal (stress relieve) and lap the P&S. In normal driving I run my engines between 220f - 250f. If the engine does not come up to full operating temp, ignition will be retarded, the header will hold too much heat and the sleeve will not fully (or evenly) expand at the top to relieve the pinch at TDC (this stresses the rod & pins).
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Old 03-07-2009, 06:56 PM   #5
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Quote:
Originally Posted by Sam-E View Post
Global warming might push the optimal temp up a bit but I would not run over 130 degrees for safety.
Did you mean 230 degrees? If you meant 130, I cant even keep my engine running at that temperature!
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Old 03-07-2009, 07:06 PM   #6
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Quote:
Originally Posted by Chris__RC View Post
Did you mean 230 degrees? If you meant 130, I cant even keep my engine running at that temperature!
Atlest 210-250 F boiling point very important! never should start an engine below 210 especially if its a new one.

Last edited by xxxrcnitro; 03-08-2009 at 04:36 AM.
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Old 03-07-2009, 07:17 PM   #7
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Quote:
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Did you mean 230 degrees? If you meant 130, I cant even keep my engine running at that temperature!

He was talking about Celsius.
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Old 03-07-2009, 07:22 PM   #8
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Deg.C yes for sure, who uses f anymore it is the year 09 isnt it, .
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Old 03-08-2009, 05:19 AM   #9
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THANKS GUYS,
i will try to tune it today.
Dave
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Old 03-08-2009, 05:50 AM   #10
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F whats that
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Old 03-08-2009, 06:00 AM   #11
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240/250 your engine would melt
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Old 03-08-2009, 06:18 AM   #12
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Farenheit vs. Celsius.
Maybe we should agree on Kelvin
We metric people prefer celcius,, you pound, stone, ounce, gallon, yards, feet and all the other weird measurements can carry on.
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Old 03-08-2009, 07:02 AM   #13
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And we should measure pressure in kilo-pascals, hahaha.
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Old 03-08-2009, 11:40 AM   #14
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Quote:
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240/250 your engine would melt
your engine will not melt @250 get real!!Maybe if it came out of an RTR or a cheaper line of engine.But,I run Rossi & Werks and have exceeded 250 with no probs.........Now 300+ and wear talking bearing failure!
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Old 03-08-2009, 11:58 AM   #15
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Quote:
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your engine will not melt @250 get real!!Maybe if it came out of an RTR or a cheaper line of engine.But,I run Rossi & Werks and have exceeded 250 with no probs.........Now 300+ and wear talking bearing failure!
i had a cracked case in a go motor and it seized and when i pulled it off we temped it at 458
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