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Team WorldTour
Samba Member
Joined: September 02, 2010
Posts: 2426
Location: Der Vaterland
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 Posted: Sat Apr 17, 2021 2:34 am Post subject: Re: 800 deg c egt!! (Exhaust Gas Temperature) |
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Dead Thread Revival!
Hey guys, couple of questions:
1.) Where does one find an affordable EGT set-up?
2.) Gnarley- you mentioned once installing a larger diameter exhaust. I've looked, but I can't find that post. Could you DM me with details?
(or, like post it here for the benefit of others...)
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oceanair
Samba Member
Joined: June 09, 2013
Posts: 720
Location: Victoria, BC
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| Posted: Sat Apr 17, 2021 8:34 am Post subject: Re: 800 deg c egt!! (Exhaust Gas Temperature) |
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Ok let's chat EGT -- I'm a pilot, we use these in aviation.
1400 degrees F is fine. It's all fine. Want a lower number, move the probe further down the line. The egt is used for measuring best fuel mixture. When being burned fuel at 1400 degrees is totally normal. To find best mixture adjust to peak EGT and enrichen 100 degrees.
Cyl head temps should never be above 400 degrees F. that is the half way point to aluminum turning to liquid and it is at half strength.
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owokie
Samba Member
Joined: May 21, 2003
Posts: 533
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| Posted: Sat Apr 17, 2021 9:48 am Post subject: Re: 800 deg c egt!! (Exhaust Gas Temperature) |
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| oceanair wrote: |
Ok let's chat EGT -- I'm a pilot, we use these in aviation.
1400 degrees F is fine. It's all fine. Want a lower number, move the probe further down the line. The egt is used for measuring best fuel mixture. When being burned fuel at 1400 degrees is totally normal. To find best mixture adjust to peak EGT and enrichen 100 degrees.
Cyl head temps should never be above 400 degrees F. that is the half way point to aluminum turning to liquid and it is at half strength. |
Your airplane doesn't run on diesel and thus your fueling advice is backwards. |
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owokie
Samba Member
Joined: May 21, 2003
Posts: 533
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| Posted: Sat Apr 17, 2021 9:56 am Post subject: Re: 800 deg c egt!! (Exhaust Gas Temperature) |
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| Zeitgeist 13 wrote: |
800C = 1472F
That's way too high for my comfort. Under what circumstances are you seeing this high of EGT? Are you sure the gauge is accurate? Your high oil temps may indicate that the pyrometer is indeed telling some sort of story about excessive heat in the engine |
85c oil temp would be low, not high.
OP, 800c EGT you need more boost, less fuel, or a lower gear while hill climbing if you're pushing the bleeding edge of what your setup is capable of.
I run a VDO setup which is fine for me. There are plenty of people that hate them and like alternate, more expensive instrumentation. |
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MarkWard
Samba Member
Joined: February 09, 2005
Posts: 17100
Location: Retired South Florida
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| Posted: Sat Apr 17, 2021 4:39 pm Post subject: Re: 800°C Exhaust Gas Temperature!! |
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Aircraft Spruce has some decent EGT gauges. Searching the internet at one point I found a boost and EGT combo gauge.
I don’t track my EGT. Stock ALH flybywire. I do watch IAT and boost with my scan gauge.
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