REFLECTOR: Update on my Subaru installation

Sun Mar 29 12:15:18 CDT 2009

That engine sounds really good Kurt- I think we will have a really good
lineup at Oshkosh in a few years- we have V-8, V-6, Rotary, and Subaru
powered Velocities- 

What sort of scoop are you running to your radiator? And are you running
coolant or oil to your heater core in the nose?

Alex

  _____  

From: reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] On
Behalf Of nmflyer1 at aol.com
Sent: Sunday, March 29, 2009 10:25 AM
To: reflector at tvbf.org
Subject: Re: REFLECTOR: Update on my Subaru installation

If you decide to go with the Evans, chose the NPG+, not the regular NPG. The
NPG+ addresses some of the issues Al mentioned. I am using it, and haven't
had any issues on ground runs. Time will tell about In the air. 

It is interesting how many different power plant & cooling methods Velocity
builders are using. Can't wait for our big fly in!

Working on Interior stuff and finishing up the cowl aft of the wing attach
fins. Then block for paint. 

 Kurt Winker
173 FGE 
340 HP Aluminum V-6
Sounds great, Hear it at:  http://www.youtube.com/watch?v=MT-0zHmcp9o

-----Original Message-----
From: Alex Balic <velocity_pilot at verizon.net>
To: 'Velocity Aircraft Owners and Builders list' <reflector at tvbf.org>
Sent: Sat, 28 Mar 2009 9:13 pm
Subject: Re: REFLECTOR: Update on my Subaru installation

Right now I am running a 25% glycol solution with a 16 pound cap I have some
of that "RedLine" wetting agent in there too- not sure if that works, but it
sure won't hurt anything- Subaru's usually don't have cooling issues- good
design I guess, just need to make sure I have a good seal around my
radiator- if I am loosing coolant, I will change to a 24 pound cap- I have a
pressure sensor on the coolant, so I can sure keep an eye on it- Evans
coolant wa s a plan B- always good to have plenty of Plan B-s laying around
I always say...  :-)

  _____  

From:  <mailto:reflector-bounces at tvbf.org> reflector-bounces at tvbf.org [
<mailto:reflector-bounces at tvbf.org?> mailto:reflector-bounces at tvbf.org] On
Behalf Of Al Gietzen
Sent: Saturday, March 28, 2009 8:12 PM
To: 'Velocity Aircraft Owners and Builders list'
Subject: Re: REFLECTOR: Update on my Subaru installation

Well; Sid, I'll have to disagree with your disagreement.  The pressure
exerted on the spring is the differential pressure on the seal plate, which
is dependant on the ambient pressure outside.

I use a double cap setup; 15 on the filler neck; 23 on the expansion tank.  

Alex; before you get too serious about the non-aqueous coolant, take a look
at the viscosity (pump power, pressure drops) and the specific heat
(requiring greater flow rates for the same heat removal).  To me it all adds
up to a poor choice; and the two people I know who have tried it gave it up
as a bad idea.

Best coolant is water, with just enough EG (or other) for corrosion
protection.

Al

-----Original Message-----
From:  <mailto:reflector-bounces at tvbf.org> reflector-bounces at tvbf.org [
<mailto:reflector-bounces at tvbf.org?> mailto:reflector-bounces at tvbf.org] On
Behalf Of Sid Knox
Sent: Saturday, March 28, 2009 3:38 PM
To: Velocity Aircraft Owners and Builders list
Subject: Re: REFLECTOR: Update on my Subaru installation

I have to disagree here... the seal is working against a spring, not ambient

pressure.  Therefore, altitude is not a factor, or at most, a minor factor.

Sid

----- Original Message ----- 

From: "Laurence Coen" < <mailto:lwcoen at hotmail.com> lwcoen at hotmail.com>

To: "Velocity Aircraft Owners and Builders list" <
<mailto:reflector at tvbf.org> reflector at tvbf.org>

Sent: Saturday, March 28, 2009 1:23 PM

Subject: Re: REFLECTOR: Update on my Subaru installation

I really should read these things before I hit send.  I should have said a 9

psi cap at sea level or 24 psi absolute pressure.   That 14 psi cap would 

give about 29 psi absolute at sea level.  A 20 psi cap should handle things 

=0 A 

to 12,000 plus feet.

Larry Coen

N136LC

From: Laurence Coen

Sent: Saturday, March 28, 2009 1:37 PM

To: Velocity Aircraft Owners and Builders list

Subject: Re: REFLECTOR: Update on my Subaru installation

Alex,

At 10,000 feet you lose about 5 psi of atmosphere making your 14 psi cap a 9

psi cap absolute pressure.

Larry Coen

N136LC

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