REFLECTOR: Performance

[Rene Dugas]

Similar but I think more like 45 degree back.  Another choice with its own problem but a consideration would be recessed groove in the lower cowl lined with stainless and carbon so the pipes exit outside into the groove parallel to the cowl for 2 or three inches.  Slight fairing upwind to promote a vacuum and allow the exit to be small enough to get the cowl off. Just musing.  Everything has negatives but a thought.  😎

Sent from Rene's iPad. A pleasure.  Go Apple.


On May 12, 2013, at 8:14 AM, Scott Derrick <scott at tnstaafl.net> wrote:

> The old V12 P51's did that didn't they?
> 
> -------- Original Message --------
> Subject: Re: REFLECTOR: Performance
> From: Mark Magee <edjonesbrady at gmail.com>
> To: Velocity Aircraft Owners and Builders list <reflector at tvbf.org>
> Date: 05/12/2013 06:44 AM
>> Would any of the six-cylinder guys with three straight down pipes per side comment on thoughts of adding 90's at the  exit? I'm thinking this is the most KISS principle method. Or is anyone considering this? I think the three pipes straight down with 90's and slight modification on the cowling might fit the ticket for me.
>> Mark Magee
>> N34XL
>> Brady TX
>> 
>> 
>> On Fri, May 10, 2013 at 3:02 PM, Scott Derrick <scott at tnstaafl.net> wrote:
>>> Dave,
>>> 
>>>     I had Custom send me two 90's.  I cut and fit the 90's to my exhaust.  I marked the pieces how I wanted them welded and sent them back for Clint to weld.  
>>> 
>>>     Here's a link showing me setting one side up prior to sending off for welding. the small tube on the right is the crankcase breather augmenter., prior to trimming.
>>> 
>>> I've linked 1 file to this email:
>>> <mime-attachment.png>IMAG0010.jpg(1.1 MB)<mime-attachment.png>Ubuntu One
>>> http://ubuntuone.com/3Hutfy91L3wGh0z32x36Fy
>>> Mozilla Thunderbird makes it easy to share large files over email.
>>> 
>>> 
>>> Scott
>>> 
>>> 
>>> -------- Original Message --------
>>> Subject: Re: REFLECTOR: Performance
>>> From: Dave T Nelson <dtnelson at us.ibm.com>
>>> To: reflector at tvbf.org
>>> Date: 05/10/2013 01:22 PM
>>>> I'm pretty sure it was Custom Aircraft that did mine... I'll double check.  And, just as an FYI, they did ask if the could pull a template from my design, and I let them do it.  My engine is a Lycoming IO-360 A2B.
>>>>   
>>>> Dave
>>>> 
>>>> Dave T. Nelson
>>>> T/L 553-4327, Voice 507-253-4327, Fax 507-253-3648
>>>> Program Director, ISC ECAT NPI & Test Engineering
>>>> 
>>>> 
>>>> ----- Message from nmflyer1 at aol.com on Fri, 10 May 2013 14:59:04 -0400 (EDT) -----
>>>> 
>>>> To:
>>>> geoff.gerhardt at gmail.com, reflector at tvbf.org
>>>> Subject:
>>>> Re: REFLECTOR: Performance
>>>> I have been using Custom Aircraft Parts in Ca. ever since Scott turned me on to them. they have rebuilt my 235 exhaust system as well as built my Velocity exhaust. Great workmanship, great prices, Fast turnaround times.  
>>>> 
>>>> 
>>>> http://www.customaircraft.com/
>>>> 
>>>> 
>>>> Kurt 
>>>> 
>>>> -----Original Message-----
>>>> From: Geoff Gerhardt <geoff.gerhardt at gmail.com>
>>>> To: Velocity Aircraft Owners and Builders list <reflector at tvbf.org>
>>>> Sent: Fri, May 10, 2013 9:59 am
>>>> Subject: Re: REFLECTOR: Performance
>>>> 
>>>> Yes, I think I will accept this challenge.  If anyone has any advice on the best AC exhaust company to use I'd appreciate it.  I've seen that many offer to send you put this PVC pipe kit to get it right, then will weld up a ss pipe based on this design. 
>>>> 
>>>> Any input on 4-4, 2x2-1 or 4-1 configurations would be appreciated.  Also, anyone who has info from longez or cozy implementations of this would be helpful.
>>>> 
>>>> Geoff
>>>> 
>>>> On Fri, May 10, 2013 at 11:47 AM, Richard J. Gentil <richard at naples-air-center.com> wrote:
>>>> I would say we need someone (Geoff, Geoff) who only changes the exhaust and nothing else, runs a test and reports back to the Reflector with the findings
>>>> 
>>>> Richard
>>>> 
>>>> Sent from my iPhone 5
>>>> 
>>>> 
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>>> 
>>> -- 
>>> Outside of a dog, a book is man's best friend. Inside of a dog it's too dark to read.
>>> Groucho Marx
>>> 
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>> 
>> 
>> 
>> -- 
>> Watch, stand fast in the faith, be brave, be strong. Let all that you do be done with love. 1COR 16:13-14
>> 
>> 
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> 
> -- 
> Spirit is the real and eternal; matter is the unreal and the temporal.
> Mary Baker Eddy
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