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HelicopterMain Discussion › Venom temperature watch.. how much temp?
10-09-2005 07:12 PM  12 years agoPost 1
Juvaknin

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ISRAEL Jerusalem

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i'm using Venom temperature watch (the green one)
how much temp i should see on OS50-Hyper on Raptor-50SE heli?
how much MAX temp for good working engine,
(what temp i should not go over?)
Thanks!

**Raptor 50SE, GY601, Futaba **

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10-09-2005 07:16 PM  12 years agoPost 2
nojohnny101

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10 miles north of​Cincy, OHIO

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hey
for the head....dont' go over 200F.....the optimum temp i've heard people shoot for is 180F


not reallly sure with temps on the backplate

EDIT: thanks for the correction


Thanks
~Will~

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10-09-2005 07:33 PM  12 years agoPost 3
Juvaknin

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ISRAEL Jerusalem

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no, The Venom temperature watch sensor is on the head!
not on the backplate..

**Raptor 50SE, GY601, Futaba **

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10-09-2005 07:37 PM  12 years agoPost 4
Spin City

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USA

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..

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10-10-2005 12:06 AM  12 years agoPost 5
rcadd1ct

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Richardson, Texas

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230 according to here:

http://www.heliproz.com/venom.html

-RCA .......... Making Cuisinarts Fly!!!!!!!

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10-10-2005 12:33 AM  12 years agoPost 6
Heli88

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Clarkston, MI

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It actually says 210 for a 50 size engine.

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10-10-2005 04:38 AM  12 years agoPost 7
Juvaknin

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ISRAEL Jerusalem

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Thanks Guys!

**Raptor 50SE, GY601, Futaba **

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10-10-2005 04:46 AM  12 years agoPost 8
rcadd1ct

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Richardson, Texas

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Sorry, I misread it trying to post faster than everyone else.

-RCA .......... Making Cuisinarts Fly!!!!!!!

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10-10-2005 09:23 AM  12 years agoPost 9
nivlek

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Norfolk England

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On my OS50SXH , with the headshim removed running on 10% nitro , I get 235 degrees in the hover on a hot (for England) summer day . However , if I check the maximum temp reached after chucking the heli around , it has usually reached 270-275 degrees at some point .
This makes sense that the temp will be higher when you are developing more power . The finger on the backplate method , and using an infra red temp gun are fine - to a point , but they don't let you know what the temperatures have reached during flight .

At the end of the day , it gets dark .

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10-10-2005 01:05 PM  12 years agoPost 10
rcadd1ct

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Richardson, Texas

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Yeah, but my finger still works after a couple of gallons.

I have never had much luck leeping the venoms alive for very long.

I gave up and use the backplate method now.

-RCA .......... Making Cuisinarts Fly!!!!!!!

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10-10-2005 01:08 PM  12 years agoPost 11
JerryLu

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Gretton, Northants -​England

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Nivlek,

Those sort of figures match mine though being in Europe I use °C

Yesterday I was getting about 125 - 130°C max temperature though I think I am running a moderate head speed around 1700. (Sceadu/50SH-X)

There is no way I can get down to or below 110° - the engine is running far too rich then.

Jerry

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10-10-2005 01:12 PM  12 years agoPost 12
nivlek

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Norfolk England

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I have run the engine on zero-nitro , the temps were a tad higher and the needle just a little more sensitive , literally one or two clicks either way made the engine too rich/too hot . I'm running the Raptor50 with a headspeed of 1900 , but dropping it to 1700 didn't change the hovering temp by more than a degree or two .

I used to use degrees C , but for the sake of our American friends it's easier to use F .

At the end of the day , it gets dark .

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10-10-2005 01:44 PM  12 years agoPost 13
Heli88

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Clarkston, MI

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I used to use degrees C , but for the sake of our American friends it's easier to use F .
Nivlek...you are too kind!

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10-10-2005 03:32 PM  12 years agoPost 14
shuttlepilot

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Mullins, South​Carolina

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I'm running one on an OS 46 and the average temp is around 230. This is running on 0% in the hot and humid SE of the US. If I try to get it cooler, it's just too rich and starts "kicking". I don't know how anyone could get 180deg out of it. Also, I had been running my thermocouple on the opposite site of the exhaust port, but according to the above link to the Heliproz site, it says you should have the thermocouple at the rear of the engine. What do you guys think?

Gas is Great
Camper Fuel is Better!!
QWW Helis

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10-10-2005 03:54 PM  12 years agoPost 15
scotter

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Winston-Salem, NC

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I used to shoot for head temps on the ground no higher than ~220, when checking with an IR 'gun' after landing. After flying around with the Venom, this seems to correspond to max temps in flight of ~265.

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10-10-2005 03:56 PM  12 years agoPost 16
nivlek

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Norfolk England

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Mine is at the rear . Basically it needs to be at 90 degrees to the exhaust port , but if you place it at the front of the engine the sensor will be cooled by the cooling fan . The side opposite to the exhaust will be cooler .

At the end of the day , it gets dark .

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10-10-2005 04:31 PM  12 years agoPost 17
shuttlepilot

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Mullins, South​Carolina

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Thanks Nivlek. Actually my fan shroud was against the thermocoupler causing some problems also.

Gas is Great
Camper Fuel is Better!!
QWW Helis

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