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Oil Cooler

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John Ackerman

Joined: 19 Jun 2006
Posts: 130
Location: Prescott, AZ

Posted: Sat Jun 16, 2007 6:51 pm Post subject: Oil Cooler

For those of us who fly where it's goshawful hot, (Phoenix area) it  

seems to make good sense to install a high-capacity oil cooler. I'd  

certainly like to have enough capacity that the vernitherm nearly  

always controls the oil temperature.

This point of view is supported by a highly respected engine builder,  

and by Vans tech support.



Here are some options that I'm aware of:



1. Replace the Niagara 20006A that Vans supplies with a higher  

capacity unit of the same dimensions, such as the Stewart Warner  

10611R, which transfers  _very_ roughly 20% more heat, I'm told.



2. Put in a larger (17-row) cooler such as (in order of increasing  

capacity)  Niagara 20010A, Aero Classics 800216 or 800356, or Stewart  

Warner 10614R.



3. Increase the airflow somehow, such as by incorporating vents or  

louvers in the lower cowl.



I'd love to put in a SW 10164 (R, I think) but it's about 1.5"   

longer that the stock unit. Just holding the engine mount up to the  

firewall, it looks to me like there would be inadequate clearance,  

because that 1.5" has to come at the bottom - the starter solenoid  

and associated structure prevent moving it up.



Has anyone put in a larger cooler? If so, what are your  

observations?  What experiences do those who are already  flying have?



I don't pretend  to be expert on oil coolers - the above differences  

are based only on what I've been told by what I believe to be  

reliable folks, and on the Stewart Warner data sheets on the web.



John Ackerman 40458 finishing kit

do not archive - just archive the answers, please!

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Tim Olson

Joined: 25 Jan 2007
Posts: 2878

Posted: Sat Jun 16, 2007 7:06 pm Post subject: Oil Cooler

If you go with increased cooling, add some method of controlling

that added cooling.  On the trip I'm currently on, I had some time

on a leg that I couldn't get my oil temps over 171, which is a

little on the low side.  Std. cowl and filter.



Tim



 	  Quote: 	
		   



 For those of us who fly where it's goshawful hot, (Phoenix area) it

 seems to make good sense to install a high-capacity oil cooler. I'd

 certainly like to have enough capacity that the vernitherm nearly

 always controls the oil temperature.

 This point of view is supported by a highly respected engine builder,

 and by Vans tech support.



 Here are some options that I'm aware of:



 1. Replace the Niagara 20006A that Vans supplies with a higher

 capacity unit of the same dimensions, such as the Stewart Warner

 10611R, which transfers  _very_ roughly 20% more heat, I'm told.



 2. Put in a larger (17-row) cooler such as (in order of increasing

 capacity)  Niagara 20010A, Aero Classics 800216 or 800356, or Stewart

 Warner 10614R.



 3. Increase the airflow somehow, such as by incorporating vents or

 louvers in the lower cowl.



 I'd love to put in a SW 10164 (R, I think) but it's about 1.5"

 longer that the stock unit. Just holding the engine mount up to the

 firewall, it looks to me like there would be inadequate clearance,

 because that 1.5" has to come at the bottom - the starter solenoid

 and associated structure prevent moving it up.



 Has anyone put in a larger cooler? If so, what are your

 observations?  What experiences do those who are already  flying have?



 I don't pretend  to be expert on oil coolers - the above differences

 are based only on what I've been told by what I believe to be

 reliable folks, and on the Stewart Warner data sheets on the web.



 John Ackerman 40458 finishing kit

 do not archive - just archive the answers, please!

- The Matronics RV10-List Email Forum -

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:

http://www.matronics.com/Navigator?RV10-List

coop85(at)cableone.net
Guest

Posted: Sat Jun 16, 2007 8:33 pm Post subject: Oil Cooler

John,

    For what it's worth, I've been flying mine on some pretty hot days in

Georgia and Mississippi with no issues on oil temperature with the standard

system on almost 100 degree days.  I realize it does get hotter in Phoenix,

I built a Q-2 there glassing the inside of the tailcone on the driveway the

day it hit 122 degrees (probably more sweat than resin in those layups).

Anyway, if you don't get a response from someone with experience with a

higher flow system, I'd recommend giving the standard a shot and see how it

goes.  One advantage of that area is it seems to cool off more rapidly as

you climb (dry heat I guess), so if you don't cruise low altitude that may

help the issue as well.



Marcus



--

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mritter509(at)msn.com
Guest

Posted: Sun Jun 17, 2007 4:13 am Post subject: Oil Cooler

John,



My oil temp came down from 215 to 200 after 50 hours using a Van issue oil 

cooler.  After adding louvers on the bottom cowl the temp is now running 185 

on hot Texas days.



Mark





[quote]From: "Marcus Cooper" <coop85(at)cableone.net>

Reply-To: rv10-list(at)matronics.com

To: <rv10-list(at)matronics.com>

Subject: RE: Oil Cooler

Date: Sat, 16 Jun 2007 23:32:27 -0500






John,

     For what it's worth, I've been flying mine on some pretty hot days in

Georgia and Mississippi with no issues on oil temperature with the standard

system on almost 100 degree days.  I realize it does get hotter in Phoenix,

I built a Q-2 there glassing the inside of the tailcone on the driveway the

day it hit 122 degrees (probably more sweat than resin in those layups).

Anyway, if you don't get a response from someone with experience with a

higher flow system, I'd recommend giving the standard a shot and see how it

goes.  One advantage of that area is it seems to cool off more rapidly as

you climb (dry heat I guess), so if you don't cruise low altitude that may

help the issue as well.



Marcus



--

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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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John Ackerman

Joined: 19 Jun 2006
Posts: 130
Location: Prescott, AZ

Posted: Mon Jun 25, 2007 4:31 pm Post subject: Oil Cooler

Thanks, guys, for the information.

Sounds like Mark's cooler may be running at full capacity a lot of  

the time, still.

I'll be using a SW 10611 cooler which has the same dimensions as  

Van's Niagara 20006A. If CHTs and oil temps are still too hot after  

10-20 hours,  (new engine) louvers will be on the list of fixes.

John

On Jun 17, 2007, at 5:12 AM, Mark Ritter wrote:



[quote] 



 John,



 My oil temp came down from 215 to 200 after 50 hours using a Van  

 issue oil cooler.  After adding louvers on the bottom cowl the temp  

 is now running 185 on hot Texas days.



 Mark





> From: "Marcus Cooper" <coop85(at)cableone.net>

> Reply-To: rv10-list(at)matronics.com

> To: <rv10-list(at)matronics.com>

> Subject: RE: Oil Cooler

> Date: Sat, 16 Jun 2007 23:32:27 -0500

>

> 

> <coop85(at)cableone.net>

>

> John,

>     For what it's worth, I've been flying mine on some pretty hot  

> days in

> Georgia and Mississippi with no issues on oil temperature with the  

> standard

> system on almost 100 degree days.  I realize it does get hotter in  

> Phoenix,

> I built a Q-2 there glassing the inside of the tailcone on the  

> driveway the

> day it hit 122 degrees (probably more sweat than resin in those  

> layups).

> Anyway, if you don't get a response from someone with experience  

> with a

> higher flow system, I'd recommend giving the standard a shot and  

> see how it

> goes.  One advantage of that area is it seems to cool off more  

> rapidly as

> you climb (dry heat I guess), so if you don't cruise low altitude  

> that may

> help the issue as well.

>

> Marcus

>

> --

- The Matronics RV10-List Email Forum -

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:

http://www.matronics.com/Navigator?RV10-List

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