The Murphy Builders Site

I have enjoyed following the discussion about Super Rebel options. I'm a
little surprised that there is no mention of the various automotive V8
engine conversions that are available. Even after reading the discussions
here, I am still leaning towards the Chevy 350 conversion that Northwest
Aero (www.northwest-aero.com) makes. The M14 worries me about parts
availability and cost, and the fuel burn figures are very scary. The
Diesels that should be coming out soon are made by Continental and Lycoming,
and some other company I don't remember. I got into homebuilding to get
away from the cost of certified parts. (And to have fun building.) Even if
I got one, I'd want to do all the maintenance, so I'd pay all that money for
a certified diesel, then I'd give up it's certified status. The CrossFlow
Suburu is very tempting, especially the "firewall forward" packages that
would relieve me of the difficulty in manufacturing an engine mount among
other things, but I worry about squeezing that much horsepower out of the
smaller (than a V8) engine. Plus, I once saw, and heard, a Prowler take off
from Watsonville airport in California, using a Buick V8 conversion and man,
what a sound! I'll never forget that sound.

Mike

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On 11 Oct 2000, at 14:07, Kimball Mike wrote:

I have enjoyed following the discussion about Super Rebel options.
I'm a little surprised that there is no mention of the various
automotive V8 engine conversions that are available. Even after
reading the discussions here, I am still leaning towards the Chevy 350
conversion that Northwest Aero (www.northwest-aero.com) makes. The

I'd worry about weight and expected power levels from a V8.
(Though I suspect NWA makes nice stuff.) Here we're getting into
the M14P area. I'd think one of the V6 conversions might be a
better choice, since they should weigh in the IO-360 to IO-540
range and put out 180 - 250HP. Bruce Frank writes a newsletter on
just Ford conversions.

Still, my favorite is the Subaru EG-33 that was used in the SVX. It
produces 230HP, yet should only have a full up weight about 20 -
30 lbs more than an IO-360. Trouble is, the SVX was never a
popular car and the engines are relatively hard to get and expensive.

Subaru is supposed to be coming out with a new flat six of 3.0
liters for the Forrester, which should make it fairly common.
Trouble is, it's supposed to be designed more as a 'torquey' engine,
which may make it less suitable for auto conversions.

---
David Parrish



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Oh yeah! The SR would be excellant with a new stock marine chev V-8. The
marine version even has the right cam in it and no oxygen sensor. About
the cheapest engine available. No real mods needed, but there are all
kinds of aftermarket parts including turbos, blowers, nitrous, headers,
you name it... just look through the Summit Racing catalog for example.
Huge time savings when you can purchase headers, oversize pulleys or
whatever cheaper than you can make them yourself. Several proven bolt-on
psru's available. Numerous examples of 25% or more fuel savings as well.
The downside is that it is almost certain to take you longer to install
but hey, a factory new long block for the cost of a Lycosaur cylinder...

Of course there are some all aluminum LS-1 engines flying now too....

Ken

Kimball Mike wrote:

I have enjoyed following the discussion about Super Rebel options. I'm a
little surprised that there is no mention of the various automotive V8
engine conversions that are available.

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between builders and owners of Murphy Rebel aircraft.
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Hey guys,
I like the sounds of this discussion. I am a firm
believer that an all aluminum V8 350 Chevy would be a
great engine for a 2500. Yes they will rev a little
bit higher than a lycoming but, with the latest PSRU
on the market they will produce 300+ HP at takeoff
turning 5000 RPM's. Generally they will cruise at
3500 to 3800 rpm's. Have better fuel efficiency and
still be close to the weight of a IO550.
Check out the local Chevrolet dealer for the latest
catalog of stock parts. By the way, a used aluminum
engine can be had from a 99> Camaro, Firebird and a
98> Corvette. All 3 cars are available in the high
output version of 340 HP at 5600 rpm's.
Here are a couple of places to check for suppliers:
Jones Aircraft Engines, Florida, Greschwinder PSRU (
used on the S-51 by Stewart), Belted Air Power, Las
Vegas, Chevrolet dealers, Summit Racing, Air Boat
Drive Systems. Check the web and Kitplanes.
Oh, one more thing, a used complete aluminum V8 350
can be had from a salvage lot for about $5000.00 U.S.
If you need more info I have several reference books.
Send me an e-mail. Hey, my 2 cents worth!

Dave Fife
3D Composite Aircraft Parts, Inc.
aircrafttips@yahoo.com.

--- klehman@albedo.net wrote:

Oh yeah! The SR would be excellant with a new stock
marine chev V-8. The
marine version even has the right cam in it and no
oxygen sensor. About
the cheapest engine available. No real mods needed,
but there are all
kinds of aftermarket parts including turbos,
blowers, nitrous, headers,
you name it... just look through the Summit Racing
catalog for example.
Huge time savings when you can purchase headers,
oversize pulleys or
whatever cheaper than you can make them yourself.
Several proven bolt-on
psru's available. Numerous examples of 25% or more
fuel savings as well.
The downside is that it is almost certain to take
you longer to install
but hey, a factory new long block for the cost of a
Lycosaur cylinder...

Of course there are some all aluminum LS-1 engines
flying now too....

Ken

Kimball Mike wrote:

I have enjoyed following the discussion about

Super Rebel options. I'm a

little surprised that there is no mention of the

various automotive V8

engine conversions that are available.

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The Murphy Rebel Builders List is for the
discussion
between builders and owners of Murphy Rebel
aircraft.
Archives located at:
http://www.dcsol.com/murphy-rebel/lists/default.htm

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One interesting thing I found out when I was checking out the various V8
engine manufacturers was that at least one of them (I think it was C. Hall
"Skip" Jones) does not recommend using an aluminum block due to lower
reliability. The folks at Northwest-Aero, where they use an LS-1 aluminum
block Chevy 350 for their conversion, don't agree. They claim that the LS-1
was designed to be an aluminum block engine from the get-go, unlike some
aluminum block engines that were sort of gleaned from cast iron block
designs. They claim that it is strong where it needs to be, with the source
material (aluminum) taken into consideration. I personally have no idea,
not being any kind of expert. Apparently, the cast iron block will cost you
about 70 pounds though. I'm still leaning towards the Northwest Aero
engine.

Mike

-----Original Message-----
From: David Fife [mailto:aircrafttips@yahoo.com]
Sent: Tuesday, October 17, 2000 12:52 AM
To: murphy-rebel@dcsol.com
Subject: Re: What about a V8?


Hey guys,
I like the sounds of this discussion. I am a firm
believer that an all aluminum V8 350 Chevy would be a
great engine for a 2500. Yes they will rev a little
bit higher than a lycoming but, with the latest PSRU
on the market they will produce 300+ HP at takeoff
turning 5000 RPM's. Generally they will cruise at
3500 to 3800 rpm's. Have better fuel efficiency and
still be close to the weight of a IO550.
Check out the local Chevrolet dealer for the latest
catalog of stock parts. By the way, a used aluminum
engine can be had from a 99> Camaro, Firebird and a
98> Corvette. All 3 cars are available in the high
output version of 340 HP at 5600 rpm's.
Here are a couple of places to check for suppliers:
Jones Aircraft Engines, Florida, Greschwinder PSRU (
used on the S-51 by Stewart), Belted Air Power, Las
Vegas, Chevrolet dealers, Summit Racing, Air Boat
Drive Systems. Check the web and Kitplanes.
Oh, one more thing, a used complete aluminum V8 350
can be had from a salvage lot for about $5000.00 U.S.
If you need more info I have several reference books.
Send me an e-mail. Hey, my 2 cents worth!

Dave Fife
3D Composite Aircraft Parts, Inc.
aircrafttips@yahoo.com.

--- klehman@albedo.net wrote:

Oh yeah! The SR would be excellant with a new stock
marine chev V-8. The
marine version even has the right cam in it and no
oxygen sensor. About
the cheapest engine available. No real mods needed,
but there are all
kinds of aftermarket parts including turbos,
blowers, nitrous, headers,
you name it... just look through the Summit Racing
catalog for example.
Huge time savings when you can purchase headers,
oversize pulleys or
whatever cheaper than you can make them yourself.
Several proven bolt-on
psru's available. Numerous examples of 25% or more
fuel savings as well.
The downside is that it is almost certain to take
you longer to install
but hey, a factory new long block for the cost of a
Lycosaur cylinder...

Of course there are some all aluminum LS-1 engines
flying now too....

Ken

Kimball Mike wrote:

I have enjoyed following the discussion about

Super Rebel options. I'm a

little surprised that there is no mention of the

various automotive V8

engine conversions that are available.

*---------------------------------------------------------------------------
--------*

The Murphy Rebel Builders List is for the
discussion
between builders and owners of Murphy Rebel
aircraft.
Archives located at:
http://www.dcsol.com/murphy-rebel/lists/default.htm

*---------------------------------------------------------------------------
--------*


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Archives located at:
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Back in Sept. at the engine seminar up here Ryan Robertson flew his SeaBee in. He changed
his original engine over to the LS1 and built his own chain drive ...was really pleased
with the results. Go here on my site http://webhome.idirect.com/~wrayt/alteng00.html to
see him and his plane.

AGT wrote:

One interesting thing I found out when I was checking out the various V8
engine manufacturers was that at least one of them (I think it was C. Hall
"Skip" Jones) does not recommend using an aluminum block due to lower
reliability. The folks at Northwest-Aero, where they use an LS-1 aluminum
block Chevy 350 for their conversion, don't agree. They claim that the LS-1
was designed to be an aluminum block engine from the get-go, unlike some
aluminum block engines that were sort of gleaned from cast iron block
designs. They claim that it is strong where it needs to be, with the source
material (aluminum) taken into consideration. I personally have no idea,
not being any kind of expert. Apparently, the cast iron block will cost you
about 70 pounds though. I'm still leaning towards the Northwest Aero
engine.

Mike

-----Original Message-----
From: David Fife [mailto:aircrafttips@yahoo.com]
Sent: Tuesday, October 17, 2000 12:52 AM
To: murphy-rebel@dcsol.com
Subject: Re: What about a V8?

Hey guys,
I like the sounds of this discussion. I am a firm
believer that an all aluminum V8 350 Chevy would be a
great engine for a 2500. Yes they will rev a little
bit higher than a lycoming but, with the latest PSRU
on the market they will produce 300+ HP at takeoff
turning 5000 RPM's. Generally they will cruise at
3500 to 3800 rpm's. Have better fuel efficiency and
still be close to the weight of a IO550.
Check out the local Chevrolet dealer for the latest
catalog of stock parts. By the way, a used aluminum
engine can be had from a 99> Camaro, Firebird and a
98> Corvette. All 3 cars are available in the high
output version of 340 HP at 5600 rpm's.
Here are a couple of places to check for suppliers:
Jones Aircraft Engines, Florida, Greschwinder PSRU (
used on the S-51 by Stewart), Belted Air Power, Las
Vegas, Chevrolet dealers, Summit Racing, Air Boat
Drive Systems. Check the web and Kitplanes.
Oh, one more thing, a used complete aluminum V8 350
can be had from a salvage lot for about $5000.00 U.S.
If you need more info I have several reference books.
Send me an e-mail. Hey, my 2 cents worth!

Dave Fife
3D Composite Aircraft Parts, Inc.
aircrafttips@yahoo.com.

--- klehman@albedo.net wrote:

Oh yeah! The SR would be excellant with a new stock
marine chev V-8. The
marine version even has the right cam in it and no
oxygen sensor. About
the cheapest engine available. No real mods needed,
but there are all
kinds of aftermarket parts including turbos,
blowers, nitrous, headers,
you name it... just look through the Summit Racing
catalog for example.
Huge time savings when you can purchase headers,
oversize pulleys or
whatever cheaper than you can make them yourself.
Several proven bolt-on
psru's available. Numerous examples of 25% or more
fuel savings as well.
The downside is that it is almost certain to take
you longer to install
but hey, a factory new long block for the cost of a
Lycosaur cylinder...

Of course there are some all aluminum LS-1 engines
flying now too....

Ken

Kimball Mike wrote:

I have enjoyed following the discussion about

Super Rebel options. I'm a

little surprised that there is no mention of the

various automotive V8

engine conversions that are available.

*---------------------------------------------------------------------------
--------*

The Murphy Rebel Builders List is for the
discussion
between builders and owners of Murphy Rebel
aircraft.
Archives located at:
http://www.dcsol.com/murphy-rebel/lists/default.htm

*---------------------------------------------------------------------------
--------*

__________________________________________________
Do You Yahoo!?
Yahoo! Messenger - Talk while you surf! It's FREE.
http://im.yahoo.com/
*---------------------------------------------------------------------------
--------*
The Murphy Rebel Builders List is for the discussion
between builders and owners of Murphy Rebel aircraft.
Archives located at:
http://www.dcsol.com/murphy-rebel/lists/default.htm
*---------------------------------------------------------------------------
--------*

*-----------------------------------------------------------------------------------*
The Murphy Rebel Builders List is for the discussion
between builders and owners of Murphy Rebel aircraft.
Archives located at:
http://www.dcsol.com/murphy-rebel/lists/default.htm
*-----------------------------------------------------------------------------------*

--
Wray Thompson ...Rebel 306 ...home page http://webhome.idirect.com/~wrayt/ or
http://wrayt.tripod.ca/
My ICQ number is 29764664


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