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03-30-2009 08:31 PM  9 years agoPost 1
helihigh

rrNovice

york,PA

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What temp range is ideal for o.s. 50 hyper inside raptor 50 thinking of adding a wired temp gauge that goes around the head, just like those used in the r/c cars. I have one on my t-maxx and it works great, they are cheap and easy to use why do you not see them inthe heli world?

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03-30-2009 09:50 PM  9 years agoPost 2
BarracudaHockey

rrMaster

Jacksonville FL

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I tried one, went back to touching the backplate.

Keep it under 205 to 210 max and you should be ok. Sound, smoke, and backplate are as good as venom gauges or IR guns though.

Andy
AMA 77227
http://www.jaxrc.com

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03-30-2009 09:58 PM  9 years agoPost 3
TaleGunner

rrElite Veteran

Deer Park WA

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I kept mine under 220 worked fine I have herd 230 is the limit but you will probably get lots of opinions

CRASH! GLUE! REPEAT!
Spectra-G, Ion X-2

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03-30-2009 10:23 PM  9 years agoPost 4
odam2k

rrKey Veteran

Markham, Ontario, Canada

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I'm using a CarbSmart set for 100c (212f)

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03-31-2009 02:23 PM  9 years agoPost 5
helihigh

rrNovice

york,PA

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thanks all for the replys. I read an article on the carb smart, I think thats going to be my next step

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03-31-2009 03:14 PM  9 years agoPost 6
SteveH

rrProfessor

Texas

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If you tune for 220, or even 230 you will get by at that temperture. However, the problem is the entire flight will not be at that temp, and you will probably see parts of the flight with higher temps that over time, very well may damage your engine.

Your much better off, and your engine will be much better off tuning for 200 degree at the head with a full tank.

The government cannot give you anything without first taking it from someone else.

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03-31-2009 09:35 PM  9 years agoPost 7
JuanRodriguez

rrProfessor

The Villages, Florida

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And these responses support the notion that you should throw away that temp gun and do what Barracuda suggests......ie, finger in the back plate, sound, smoke.......

There are just too many "opinions" out there regarding what the magical temp should be with too many variables on where to take the reading , etc..... When you put press your finger against the back plate, you'll immediatly know if it's too lean.....

Just my opinion..... it doesn't count any more than anyone else's.....

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04-01-2009 04:20 PM  9 years agoPost 8
odam2k

rrKey Veteran

Markham, Ontario, Canada

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The problem with the finger on the backplate, smoke, and sound, is that knowledge all comes from experience.

When I first got my Raptor 30 with the TT39 in it, I snapped the piston rod on about my 10th flight, it was way too lean, but I didn't know, and had nobody to warn me... I had been able to touch the backplate whenever I did check...

So, I put a OS37 on it, and was very cautios, bought a laser thermometer, watched for lots of smoke, kept it so it almost ran rough during the transition to high speed, and knew I was running extra lean, especially during breakin, then even after that. I was so paranoid that I bought the CarbSmart just to help, and to take some of the guesswork out of it. It helped, I checked the temp every time I landed, I would keep it adjjusted so that I could see it was richening the mixture a bit as it warmed up, so I knew it was working. I got too know the "feel" for the backplate, and the sound of the engine, and the "right" amount of smoke...

Then I crashed the 30, wrote it off, and have since replaced it with a 50, an OS50-Hyper, so am now re-learning the feel, sound, and smoke. I'm not relying on the CarbSmart yet, but will use it, and I also have a GV-1 but no idea yet how that works, especially in relation to the needle setting ability of it. Its still waiting to be installed...

The carbsmart, for me, was peace of mind, I knew it would watch the temp for me in the air, as long as I kept my eye on it, and it didn't come down with the servo in the full rich position, I knew there was still a safetyzone left...

Now, I'm no expert, don't pretend to be one, and really don't know anything other than my own experience so far in a couple months with nitro...

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04-01-2009 05:32 PM  9 years agoPost 9
SteveH

rrProfessor

Texas

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With time and experience you will learn the "feel, smoke, and sound", but it does take time. I've been flying glow model helis since '85.
The best thing to do, IMHO, is use a temp guage and that will teach you the "feel, smoke, and sound".

You can actually do harm to some engines, ABC to be specific, if you run them in too rich. They need to be run at operating temperature. As a matter of fact, one of the best known heli flyers of all time that lives in Texas tells me he never runs in an engine rich...he runs them at normal operating temperature, but he does not "hammer" them before having several flights on them.

The government cannot give you anything without first taking it from someone else.

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