The Murphy Builders Site

Here's another idea: I wonder if any Lyc-Murphy folks have tried tuned
exhaust, such as from www.skydynamics.com. Some chance tuned exhaust would
get another 10hp out of the engine, so you'd keep your same prop and get full
power cruise (and better climb rpm too), and potentially even save a little
gas money.

Honest, I'm not just trying to dream up more ways to spend money. :) I
really don't know if the tuned exhaust makes enf difference to matter. Or,
novice me, maybe the Lycoming exhaust provided by Murphy is already
considered "tuned". (I saw some possible implication of that from a 2001
post here by Rick Ford.)

Also, maybe this same type of question could be branched off to asking about
Ellison throttle body carbs.
-Ben Ransom

-> > Dale,
-> > You mention the possibility of better performance, but aren't you already
-> > there with max power rpm under red line at cruise? Do you mean you wish
-> you
-> > had larger diameter, finer pitch, so as to get better low speed thrust at
-> the
-> > possible expense of some cruise speed?
-> > -Ben Ransom ...a long way from buying a prop
->
-> Ben,
-> I was thinking of better low speed thrust.
-> Dale
-> >
-> >
-> >
-> > -> The static rpm is 2300, climb is 2350, full power 2600/115mph. I
could
-> have
-> > -> better performance if I had used a finer pitch or a larger diameter.
-> Check
-> > -> with Lonnie Prince.
-> > ->
-> > -> I purchased the prop through Murphy, and the spacer from Saber. The
-> > -> Sensenich spacer will not work with a wood or carbon prop and is more
-> > -> expensive.
-> > ->
-> > -> Not only does the Prince out perform my Sensenich, it is 25lbs
lighter.
-> > ->
-> > -> Dale
-> > -> N295RT
-> > -> >
-> > -> >
-> > -> >
-> > -> >
-> > ->
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-> > -> >
-> > ->
-> *-------------------------------------------------------------------------*
-> > -> >
-> > -> >
-> > -> >
-> > ->
-> >
-> >
-> >
-> >
-> >
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-> >
->




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Hi Ben !

Save your money ! The Forsling exhaust that Murphy supplies works
great on the O-320....... any other claims from "tuners" are just , well,
interesting claims. Believe me, if there were something out there that
gave 10 more HP, EVERYBODY would already have it !!! :-)

I think the Ellison injector fits the same category - might be
useful for aerobatics ....

So, as our famous ING spokesman says "Save your money !" ;-) :-)
And your time - Just "GET IT FLYING !!" :-) It IS worth it !! :-)

......bobp

----------------------------orig.-------------------
On Wednesday 18 February 2004 07:59 pm, you wrote:

Here's another idea: I wonder if any Lyc-Murphy folks have tried tuned
exhaust, such as from www.skydynamics.com. Some chance tuned exhaust would
get another 10hp out of the engine, so you'd keep your same prop and get

full

power cruise (and better climb rpm too), and potentially even save a little
gas money.

Honest, I'm not just trying to dream up more ways to spend money. :) I
really don't know if the tuned exhaust makes enf difference to matter. Or,
novice me, maybe the Lycoming exhaust provided by Murphy is already
considered "tuned". (I saw some possible implication of that from a 2001
post here by Rick Ford.)

Also, maybe this same type of question could be branched off to asking

about

Ellison throttle body carbs.
-Ben Ransom

-> > Dale,
-> > You mention the possibility of better performance, but aren't you

already

-> > there with max power rpm under red line at cruise? Do you mean you

wish

-> you
-> > had larger diameter, finer pitch, so as to get better low speed thrust

at

-> the
-> > possible expense of some cruise speed?
-> > -Ben Ransom ...a long way from buying a prop
->
-> Ben,
-> I was thinking of better low speed thrust.
-> Dale
-> >
-> >
-> >
-> > -> The static rpm is 2300, climb is 2350, full power 2600/115mph. I
could
-> have
-> > -> better performance if I had used a finer pitch or a larger diameter.
-> Check
-> > -> with Lonnie Prince.
-> > ->
-> > -> I purchased the prop through Murphy, and the spacer from Saber. The
-> > -> Sensenich spacer will not work with a wood or carbon prop and is

more

-> > -> expensive.
-> > ->
-> > -> Not only does the Prince out perform my Sensenich, it is 25lbs
lighter.
-> > ->
-> > -> Dale
-> > -> N295RT
-> > -> >
-> > -> >
-> > -> >
-> > -> >
-> > ->
->

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-> > -> > Archives public username "rebel" password "builder"
-> > -> > To contact the list admin, e-mail mike.davis@dcsol.com
-> > -> >
-> > ->
->

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

-> > -> >
-> > -> >
-> > -> >
-> > ->
-> >
-> >
-> >
-> >
-> >
->

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-> >
->

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-> >
-> >
-> >
->




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