The Murphy Builders Site

Posted: **Fri Feb 17, 2012 11:11 pm**

I didn't have my brain turned on when I said "use off the shelf headers". I
forgot the engine will be backwards and any off the shelf header will point
towards the prop. That 180 degree turn in the exhaust pipes could be a bit
of a challenge. Regarding the "noise" my V8 will make - If it's anything
like the sound the Prowler homebuilt made when taking off from Watsonville
airport in California many years ago, I have never forgotten that "music".
Turn up the volume, I love that song!

'Nuther subject: There is a man and wife team here in Fairbanks that
operate a custom engineering and fabrication business. She has a Ph.D. in
engineering and he is an accomplished fabricator/welder. He built a very
nice WagAero 2+2 and is working on another homebuilt. They are both very
active in the local chapter of the EAA. They are going to design and build
my engine mount, including a complete finite element analysis. I will also
own the jig when it's all finished which theoretically will mean that I will
have the ability to make more. There might be some interested parties out
there, eh? I'm not interested in making money, but I am interested in
helping my fellow builders.

Mike Kimball
SR #044

-----Original Message-----
From: mike.davis@dcsol.com [mailto:mike.davis@dcsol.com]On Behalf Of
LisaFly99@aol.com
Sent: Monday, June 09, 2003 7:16 PM
To: murphy-rebel@dcsol.com
Subject: Re:Header ?

In a message dated 6/9/03 3:11:49 PM Central Daylight Time, mkimball@gci.net
writes:

What about the
exhaust? Build the mount first, then build the exhaust to dodge the

mount?

I'd like to use off the shelf headers if possible. If I do, I assume I
should have them mounted before designing the mount, then design the rest

of

the exhaust around the mount.

MIKE
<A HREF="http://www.bgsoflex.com/bestheader.html">Aerodynamic & Rolling
Horsepower Computation</A> Try this site for header info.
And IMHO the noise that Chevy's going to make will be MUCH louder than you
think. Even if you just use stainless exhaust tips of the next size up from
you're headers and put in a three ring baffle kit it will take the sharpness
out
of it's bark and make it more quiet. With verry little if any back presure.
Phil&Lisa Smith
#460R
N414D

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Posted: **Fri Feb 17, 2012 11:11 pm**

I think you're right! Thanks.

Mike Kimball
SR #044

-----Original Message-----
From: mike.davis@dcsol.com [mailto:mike.davis@dcsol.com]On Behalf Of
Drew Dalgleish
Sent: Tuesday, June 10, 2003 2:40 PM
To: murphy-rebel@dcsol.com
Subject: RE: Header ? and engine mount

Isn't a small block symetrical front to back? I think you should be able to
use the left header on the right side etc. and have them work for you. I
think I've seen drag boats with standard headers mounted upside down.

At 02:16 PM 6/10/2003 -0800, you wrote:

I didn't have my brain turned on when I said "use off the shelf headers".

I

forgot the engine will be backwards and any off the shelf header will point
towards the prop. That 180 degree turn in the exhaust pipes could be a bit
of a challenge. Regarding the "noise" my V8 will make - If it's anything
like the sound the Prowler homebuilt made when taking off from Watsonville
airport in California many years ago, I have never forgotten that "music".
Turn up the volume, I love that song!

'Nuther subject: There is a man and wife team here in Fairbanks that
operate a custom engineering and fabrication business. She has a Ph.D. in
engineering and he is an accomplished fabricator/welder. He built a very
nice WagAero 2+2 and is working on another homebuilt. They are both very
active in the local chapter of the EAA. They are going to design and build
my engine mount, including a complete finite element analysis. I will also
own the jig when it's all finished which theoretically will mean that I

will

have the ability to make more. There might be some interested parties out
there, eh? I'm not interested in making money, but I am interested in
helping my fellow builders.

Mike Kimball
SR #044

Drew Dalgleish

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Posted: **Fri Feb 17, 2012 11:11 pm**

In addition to being symetrical, they make headers that point straight
down... no turn in them at all. I thing this would be better for our
application than even being able to mount them on opposite sides and have
them point back towards the firewall.

Mike

----- Original Message -----
From: "Mike Kimball" <mkimball@gci.net>
To: <murphy-rebel@dcsol.com>
Sent: Tuesday, June 10, 2003 2:16 PM
Subject: RE: Header ? and engine mount

I didn't have my brain turned on when I said "use off the shelf headers".

I

forgot the engine will be backwards and any off the shelf header will

point

towards the prop. That 180 degree turn in the exhaust pipes could be a

bit

of a challenge. Regarding the "noise" my V8 will make - If it's anything
like the sound the Prowler homebuilt made when taking off from Watsonville
airport in California many years ago, I have never forgotten that "music".
Turn up the volume, I love that song!

'Nuther subject: There is a man and wife team here in Fairbanks that
operate a custom engineering and fabrication business. She has a Ph.D. in
engineering and he is an accomplished fabricator/welder. He built a very
nice WagAero 2+2 and is working on another homebuilt. They are both very
active in the local chapter of the EAA. They are going to design and

build

my engine mount, including a complete finite element analysis. I will

also

own the jig when it's all finished which theoretically will mean that I

will

have the ability to make more. There might be some interested parties out
there, eh? I'm not interested in making money, but I am interested in
helping my fellow builders.

Mike Kimball
SR #044

-----Original Message-----
From: mike.davis@dcsol.com [mailto:mike.davis@dcsol.com]On Behalf Of
LisaFly99@aol.com
Sent: Monday, June 09, 2003 7:16 PM
To: murphy-rebel@dcsol.com
Subject: Re:Header ?

In a message dated 6/9/03 3:11:49 PM Central Daylight Time,

mkimball@gci.net

writes:

What about the
exhaust? Build the mount first, then build the exhaust to dodge the
mount?
I'd like to use off the shelf headers if possible. If I do, I assume I
should have them mounted before designing the mount, then design the

rest

of
the exhaust around the mount.
MIKE
<A HREF="http://www.bgsoflex.com/bestheader.html">Aerodynamic & Rolling
Horsepower Computation</A> Try this site for header info.
And IMHO the noise that Chevy's going to make will be MUCH louder than you
think. Even if you just use stainless exhaust tips of the next size up

from

you're headers and put in a three ring baffle kit it will take the

sharpness

out
of it's bark and make it more quiet. With verry little if any back

presure.

Phil&Lisa Smith
#460R
N414D

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Posted: **Fri Feb 17, 2012 11:11 pm**

Here's one link I found...

http://www.holley.com/HiOctn/ProdLine/P ... ckHug.html

Mike

----- Original Message -----
From: <rickhm@mindspring.com>
To: <murphy-rebel@dcsol.com>
Sent: Tuesday, June 10, 2003 6:07 PM
Subject: Re: Re: Header ? and engine mount

Mike,

Do you know a manufacturer for these streight down headers? The other

complicating factor here is somewhere in this general area of the
installation there is a radiator, typically. With the headers mounted
backwards relative to an car so the exhaust goes toward the tail they
traverse through were I had thought to put a radiator, or at least they
limit size, shape, etc. Streight down might allow for a larger radiator and
venting of the exhaust below the radiator exit. How have others thought
about doing this? Anyone got any thoughts on sizing the radiator. I have
heard various ratio's for radiator area/hp.

Rick Muller
SR70
-------Original Message-------
From: Mike Davis <mike.davis@dcsol.com>
Sent: 06/10/03 05:29 PM
To: murphy-rebel@dcsol.com
Subject: Re: Header ? and engine mount

In addition to being symetrical, they make headers that point straight
down... no turn in them at all. I thing this would be better for our
application than even being able to mount them on opposite sides and have
them point back towards the firewall.

Mike

----- Original Message -----
From: "Mike Kimball" <mkimball@gci.net>
To: <murphy-rebel@dcsol.com>
Sent: Tuesday, June 10, 2003 2:16 PM
Subject: RE: Header ? and engine mount

I didn't have my brain turned on when I said "use off the shelf
headers".
I
forgot the engine will be backwards and any off the shelf header will
point
towards the prop. That 180 degree turn in the exhaust pipes could be a
bit
of a challenge. Regarding the "noise" my V8 will make - If it's
anything
like the sound the Prowler homebuilt made when taking off from
Watsonville
airport in California many years ago, I have never forgotten that
"music".
Turn up the volume, I love that song!

'Nuther subject: There is a man and wife team here in Fairbanks that
operate a custom engineering and fabrication business. She has a Ph.D.
in
engineering and he is an accomplished fabricator/welder. He built a
very
nice WagAero 2+2 and is working on another homebuilt. They are both
very
active in the local chapter of the EAA. They are going to design and
build
my engine mount, including a complete finite element analysis. I will
also
own the jig when it's all finished which theoretically will mean that I
will
have the ability to make more. There might be some interested parties
out
there, eh? I'm not interested in making money, but I am interested in
helping my fellow builders.

Mike Kimball
SR #044

-----Original Message-----
From: mike.davis@dcsol.com [mailto:mike.davis@dcsol.com]On Behalf Of
LisaFly99@aol.com
Sent: Monday, June 09, 2003 7:16 PM
To: murphy-rebel@dcsol.com
Subject: Re:Header ?

In a message dated 6/9/03 3:11:49 PM Central Daylight Time,
mkimball@gci.net
writes:

What about the
exhaust? Build the mount first, then build the exhaust to dodge the
mount?
I'd like to use off the shelf headers if possible. If I do, I assume
I
should have them mounted before designing the mount, then design the
rest
of
the exhaust around the mount.
MIKE
<A HREF="http://www.bgsoflex.com/bestheader.html">Aerodynamic & Rolling
Horsepower Computation</A> Try this site for header info.
And IMHO the noise that Chevy's going to make will be MUCH louder than
you
think. Even if you just use stainless exhaust tips of the next size up
from
you're headers and put in a three ring baffle kit it will take the
sharpness
out
of it's bark and make it more quiet. With verry little if any back
presure.
Phil&Lisa Smith
#460R

N414D

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Posted: **Fri Feb 17, 2012 11:11 pm**

Mike,

Do you know a manufacturer for these streight down headers? The other complicating factor here is somewhere in this general area of the installation there is a radiator, typically. With the headers mounted backwards relative to an car so the exhaust goes toward the tail they traverse through were I had thought to put a radiator, or at least they limit size, shape, etc. Streight down might allow for a larger radiator and venting of the exhaust below the radiator exit. How have others thought about doing this? Anyone got any thoughts on sizing the radiator. I have heard various ratio's for radiator area/hp.

Rick Muller
SR70
-------Original Message-------
From: Mike Davis <mike.davis@dcsol.com>
Sent: 06/10/03 05:29 PM
To: murphy-rebel@dcsol.com
Subject: Re: Header ? and engine mount

In addition to being symetrical, they make headers that point straight

down... no turn in them at all. I thing this would be better for our
application than even being able to mount them on opposite sides and have
them point back towards the firewall.

Mike

----- Original Message -----
From: "Mike Kimball" <mkimball@gci.net>
To: <murphy-rebel@dcsol.com>
Sent: Tuesday, June 10, 2003 2:16 PM
Subject: RE: Header ? and engine mount

I didn't have my brain turned on when I said "use off the shelf

headers".
I

forgot the engine will be backwards and any off the shelf header will

point

towards the prop. That 180 degree turn in the exhaust pipes could be a

bit

of a challenge. Regarding the "noise" my V8 will make - If it's

anything

like the sound the Prowler homebuilt made when taking off from

Watsonville

airport in California many years ago, I have never forgotten that

"music".

Turn up the volume, I love that song!

'Nuther subject: There is a man and wife team here in Fairbanks that
operate a custom engineering and fabrication business. She has a Ph.D.

in

engineering and he is an accomplished fabricator/welder. He built a

very

nice WagAero 2+2 and is working on another homebuilt. They are both

very

active in the local chapter of the EAA. They are going to design and

build

my engine mount, including a complete finite element analysis. I will

also

own the jig when it's all finished which theoretically will mean that I

will

have the ability to make more. There might be some interested parties

out

there, eh? I'm not interested in making money, but I am interested in
helping my fellow builders.

Mike Kimball
SR #044

-----Original Message-----
From: mike.davis@dcsol.com [mailto:mike.davis@dcsol.com]On Behalf Of
LisaFly99@aol.com
Sent: Monday, June 09, 2003 7:16 PM
To: murphy-rebel@dcsol.com
Subject: Re:Header ?

In a message dated 6/9/03 3:11:49 PM Central Daylight Time,

mkimball@gci.net

writes:

What about the
exhaust? Build the mount first, then build the exhaust to dodge the
mount?
I'd like to use off the shelf headers if possible. If I do, I assume

I

should have them mounted before designing the mount, then design the

rest

of
the exhaust around the mount.
MIKE
<A HREF="http://www.bgsoflex.com/bestheader.html">Aerodynamic & Rolling
Horsepower Computation</A> Try this site for header info.
And IMHO the noise that Chevy's going to make will be MUCH louder than

you

think. Even if you just use stainless exhaust tips of the next size up

from

you're headers and put in a three ring baffle kit it will take the

sharpness

out
of it's bark and make it more quiet. With verry little if any back

presure.

Phil&Lisa Smith
#460R

N414D
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Posted: **Fri Feb 17, 2012 11:11 pm**

Isn't a small block symetrical front to back? I think you should be able to
use the left header on the right side etc. and have them work for you. I
think I've seen drag boats with standard headers mounted upside down.

At 02:16 PM 6/10/2003 -0800, you wrote:

I didn't have my brain turned on when I said "use off the shelf headers". I
forgot the engine will be backwards and any off the shelf header will point
towards the prop. That 180 degree turn in the exhaust pipes could be a bit
of a challenge. Regarding the "noise" my V8 will make - If it's anything
like the sound the Prowler homebuilt made when taking off from Watsonville
airport in California many years ago, I have never forgotten that "music".
Turn up the volume, I love that song!

'Nuther subject: There is a man and wife team here in Fairbanks that
operate a custom engineering and fabrication business. She has a Ph.D. in
engineering and he is an accomplished fabricator/welder. He built a very
nice WagAero 2+2 and is working on another homebuilt. They are both very
active in the local chapter of the EAA. They are going to design and build
my engine mount, including a complete finite element analysis. I will also
own the jig when it's all finished which theoretically will mean that I will
have the ability to make more. There might be some interested parties out
there, eh? I'm not interested in making money, but I am interested in
helping my fellow builders.

Mike Kimball
SR #044

Drew Dalgleish

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Posted: **Fri Feb 17, 2012 11:11 pm**

Probably the same headers as the tractor pullers stick straight UP!!.......
but I don't know where they buy them though.

Wayne

----- Original Message -----
From: <rickhm@mindspring.com>
To: <murphy-rebel@dcsol.com>
Sent: Tuesday, June 10, 2003 10:07 PM
Subject: Re: Re: Header ? and engine mount

Mike,

Do you know a manufacturer for these streight down headers? The other

complicating factor here is somewhere in this general area of the
installation there is a radiator, typically. With the headers mounted
backwards relative to an car so the exhaust goes toward the tail they
traverse through were I had thought to put a radiator, or at least they
limit size, shape, etc. Streight down might allow for a larger radiator and
venting of the exhaust below the radiator exit. How have others thought
about doing this? Anyone got any thoughts on sizing the radiator. I have
heard various ratio's for radiator area/hp.

Rick Muller
SR70

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Posted: **Fri Feb 17, 2012 11:11 pm**

Shucks! I kinda liked the idea of the side pipes. Back in the '70's, I had
a set of Thrush side pipes on a Camaro. They'd be real neat, snuggled under
the struts on each side....

BTW, my plane has an IO520 with 6 straight stacks under the cylinders,
angled back at 45 degrees. Noise is not an issue at all. The prop is the
source of noise. When I can get her to ride with me, on long flights, my
wife will remove her headset, claiming that it's not too loud.

Bill Delcambre

----- Original Message -----
From: <rickhm@mindspring.com>
To: <murphy-rebel@dcsol.com>
Sent: Tuesday, June 10, 2003 9:07 PM
Subject: Re: Re: Header ? and engine mount

Mike,

Do you know a manufacturer for these streight down headers? The other

complicating factor here is somewhere in this general area of the
installation there is a radiator, typically. With the headers mounted
backwards relative to an car so the exhaust goes toward the tail they
traverse through were I had thought to put a radiator, or at least they
limit size, shape, etc. Streight down might allow for a larger radiator and
venting of the exhaust below the radiator exit. How have others thought
about doing this? Anyone got any thoughts on sizing the radiator. I have
heard various ratio's for radiator area/hp.

Rick Muller
SR70
-------Original Message-------
From: Mike Davis <mike.davis@dcsol.com>
Sent: 06/10/03 05:29 PM
To: murphy-rebel@dcsol.com
Subject: Re: Header ? and engine mount

In addition to being symetrical, they make headers that point straight
down... no turn in them at all. I thing this would be better for our
application than even being able to mount them on opposite sides and have
them point back towards the firewall.

Mike

----- Original Message -----
From: "Mike Kimball" <mkimball@gci.net>
To: <murphy-rebel@dcsol.com>
Sent: Tuesday, June 10, 2003 2:16 PM
Subject: RE: Header ? and engine mount

I didn't have my brain turned on when I said "use off the shelf
headers".
I
forgot the engine will be backwards and any off the shelf header will
point
towards the prop. That 180 degree turn in the exhaust pipes could be a
bit
of a challenge. Regarding the "noise" my V8 will make - If it's
anything
like the sound the Prowler homebuilt made when taking off from
Watsonville
airport in California many years ago, I have never forgotten that
"music".
Turn up the volume, I love that song!

'Nuther subject: There is a man and wife team here in Fairbanks that
operate a custom engineering and fabrication business. She has a Ph.D.
in
engineering and he is an accomplished fabricator/welder. He built a
very
nice WagAero 2+2 and is working on another homebuilt. They are both
very
active in the local chapter of the EAA. They are going to design and
build
my engine mount, including a complete finite element analysis. I will
also
own the jig when it's all finished which theoretically will mean that I
will
have the ability to make more. There might be some interested parties
out
there, eh? I'm not interested in making money, but I am interested in
helping my fellow builders.

Mike Kimball
SR #044

-----Original Message-----
From: mike.davis@dcsol.com [mailto:mike.davis@dcsol.com]On Behalf Of
LisaFly99@aol.com
Sent: Monday, June 09, 2003 7:16 PM
To: murphy-rebel@dcsol.com
Subject: Re:Header ?

In a message dated 6/9/03 3:11:49 PM Central Daylight Time,
mkimball@gci.net
writes:

What about the
exhaust? Build the mount first, then build the exhaust to dodge the
mount?
I'd like to use off the shelf headers if possible. If I do, I assume
I
should have them mounted before designing the mount, then design the
rest
of
the exhaust around the mount.
MIKE
<A HREF="http://www.bgsoflex.com/bestheader.html">Aerodynamic & Rolling
Horsepower Computation</A> Try this site for header info.
And IMHO the noise that Chevy's going to make will be MUCH louder than
you
think. Even if you just use stainless exhaust tips of the next size up
from
you're headers and put in a three ring baffle kit it will take the
sharpness
out
of it's bark and make it more quiet. With verry little if any back
presure.
Phil&Lisa Smith
#460R

N414D

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