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914 EGTs - Normal and Max.

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darinh

Joined: 20 Apr 2006
Posts: 327
Location: Utah

Posted: Mon Jul 14, 2008 2:01 pm Post subject: 914 EGTs - Normal and Max.

You guys flying 914's, what are you seeing on your normal operating range for EGTs?  What is the max set at by Rotax?  I would think this information would be in the manuals but I have yet to find it.  Any personal experience would be great.  I ran my 914 yesterday and had temps as high as 1530 around 4300 rpm.



I posted this on the Rotax engines forum but no replies...I figured this forum would have better results.

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_________________
Darin Hawkes
Series 7
914 Turbo
Kaysville, Utah

darinh

Joined: 20 Apr 2006
Posts: 327
Location: Utah

Posted: Mon Jul 14, 2008 2:16 pm Post subject: Re: 914 EGTs - Normal and Max.

I found the information needed.  It is listed in a document provided on www.rotax-owner.com called "Understanding the 914".  It lists the max EGT as 1742 degrees F and a normal EGT of 1652 degrees F.  Seems a bit warm but I am used to the 1350 degrees of a Lyc.

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_________________
Darin Hawkes
Series 7
914 Turbo
Kaysville, Utah

Last edited by darinh on Tue Jul 15, 2008 2:27 pm; edited 1 time in total

davidjoyce(at)doctors.org
Guest

Posted: Tue Jul 15, 2008 12:59 am Post subject: 914 EGTs - Normal and Max.

Darin, The warning and alarm limits for 914 EGTs given by Rotax in the 

Flydat manual are 880 & 900 degrees Centigrade respectively. Mine usually 

run around the 700 mark with the rear pair being perhaps 60 deg hotter. 

880C.  is 1616F, and 760 is 1400F so you haven't exceeded limits but seem to 

be running hotter than I do. But on the other hand if you are just doing 

ground runs you aren't getting much in the way of cooling, & new engines 

also run relatively hot until they have polished all the rough surfaces off 

a bit. Regards, David Joyce, G-XSDJ

---

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pete(at)lawless.info
Guest

Posted: Tue Jul 15, 2008 1:22 am Post subject: 914 EGTs - Normal and Max.

Hi David



As a matter of interest do Rotax publish a limit for turbo inlet temperature

and do you monitor it?



Pete



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davidjoyce(at)doctors.org
Guest

Posted: Tue Jul 15, 2008 2:44 am Post subject: 914 EGTs - Normal and Max.

Pete, No, or at least not to my knowledge, and No! Regards, David

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Ivor Phillips

Joined: 16 Jan 2006
Posts: 253
Location: London UK

Posted: Tue Jul 15, 2008 3:26 am Post subject: 914 EGTs - Normal and Max.

Hi Pete

Rotax allow a max inlet temp of 72c (160F) or 88c (190F) depending on

the serial number of the TCU, I have never exceeded 50C so far with

normal cruise being about 35C

Regards

Ivor



Subject: RE: 914 EGTs - Normal and Max.






Hi David



As a matter of interest do Rotax publish a limit for turbo inlet

temperature

and do you monitor it?



Pete




<davidjoyce(at)doctors.org.uk>



Darin, The warning and alarm limits for 914 EGTs given by Rotax in the 

Flydat manual are 880 & 900 degrees Centigrade respectively. Mine

usually 

run around the 700 mark with the rear pair being perhaps 60 deg hotter. 

880C.  is 1616F, and 760 is 1400F so you haven't exceeded limits but

seem to



be running hotter than I do. But on the other hand if you are just doing



ground runs you aren't getting much in the way of cooling, & new engines



also run relatively hot until they have polished all the rough surfaces

off 

a bit. Regards, David Joyce, G-XSDJ

-----

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Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

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