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Exhaust Pipe Temps

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partner14

Joined: 12 Jan 2008
Posts: 540
Location: Granbury Texas

Posted: Thu Feb 10, 2011 9:13 pm Post subject: Exhaust Pipe Temps

Has anyone measured the temperature of the exhaust PIPES either as they exit the bottom cowl, or closer to the tips?  Not the egt, but the pipes themselves.

Thanks, Don McDonald

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Don A. McDonald
40636

martinaerodrome(at)gmail.
Guest

Posted: Fri Feb 11, 2011 6:54 am Post subject: Exhaust Pipe Temps

I had my exhaust pipes ceramic coated inside and out.  This resulted in a dramatic reduction in radiated heaat.

 Dick Martin

 RV8 N233M

 the fast one

 On Thu, Feb 10, 2011 at 11:13 PM, partner14 <building_partner(at)yahoo.com (building_partner(at)yahoo.com)> wrote:

 [quote]--> RV10-List message posted by: "partner14" <building_partner(at)yahoo.com (building_partner(at)yahoo.com)>

 

Has anyone measured the temperature of the exhaust PIPES either as they exit the bottom cowl, or closer to the tips?  Not the egt, but the pipes themselves.

Thanks, Don McDonald



--------

Don A. McDonald

 40636





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[b]

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Kellym

Joined: 10 Jan 2006
Posts: 1705
Location: Sun Lakes AZ

Posted: Fri Feb 11, 2011 7:00 am Post subject: Exhaust Pipe Temps

The downside to such coatings is that once coated they can never be weld 

repaired. Just one of the trade-offs we have to weigh and make our choices.

On 2/11/2011 7:51 AM, Richard Martin wrote:

 	  Quote: 	
		   I had my exhaust pipes ceramic coated inside and out.  This resulted 

 in a dramatic reduction in radiated heaat.

 Dick Martin

 RV8 N233M

 the fast one



 On Thu, Feb 10, 2011 at 11:13 PM, partner14 

 <building_partner(at)yahoo.com <mailto:building_partner(at)yahoo.com>> wrote:



     

     <building_partner(at)yahoo.com <mailto:building_partner(at)yahoo.com>>



     Has anyone measured the temperature of the exhaust PIPES either as

     they exit the bottom cowl, or closer to the tips?  Not the egt,

     but the pipes themselves.

     Thanks, Don McDonald



     --------

     Don A. McDonald

     40636





     Read this topic online here:



     http://forums.matronics.com/viewtopic.php?p=330555#330555



     ption,

     www.matronics.com/Navigator?RV10-List"

     target="_blank">http://www.matronics.com/Navigator?RV10-List

     ronics.com/" target="_blank">http://forums.matronics.com

     Matt Dralle, List Admin.

     =====





 *

 *

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Kelly McMullen
A&P/IA, EAA Tech Counselor # 5286
KCHD

Lew Gallagher

Joined: 04 Jan 2008
Posts: 402
Location: Greenville , SC

Posted: Sat Feb 19, 2011 10:59 am Post subject: Re: Exhaust Pipe Temps

Hey Don,



I never saw a reply on your question re exhaust pipe temp, so today I aimed an infrared sensor at the exhaust pipes just as they clear the cowling.  250 F and it's 65 outside.  He had just landed and I took it as he stopped after taxi with the engine still running.  The numbers bounced around a bit (wind?) but 250 seemed about average.



I'm curious what you'll do with this number?  If it's about protecting the fiberglass from heat, I've thought of using the same type of heat shield that is on motorcycle headers -- a strap clamp around the pipe that holds a metal shield off with an air gap in between.  But if the adhesive reflective tape works just as well, that may do the trick.



Later, - Lew

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