Today's Message Index:
----------------------
1. 11:30 AM - Roller tappets - another ~ - OUCH !! (Gerry Filby)
2. 12:24 PM - Re: Roller tappets - another ~ - OUCH !! (rv-9a-online)
3. 01:07 PM - Re: Roller tappets - another ~ - OUCH !! (kerrjohna@comcast.net)
4. 01:27 PM - Re: Roller tappets - another ~ - OUCH !! (James H Nelson)
5. 02:08 PM - Re: Roller tappets - another ~ - OUCH !! (BPA)
Message 1
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| Subject: | Roller tappets - another ~ - OUCH !! |
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--> RV9-List message posted by: Gerry Filby <gerf@gerf.com>
Folks,
Looks like adding the roller tappet option to your 320 or 360
is going to add another $3-4000 to the price (that's Aerosport's
current estimate).
I've been hunting around and haven't found much discussion on
the upgrade apart from various announcements from Delphi and
Lycoming. This "new technology" solves premature wear and
corrosion only ? They also enable alternate cam profiles ? (Not
likely for this first timer.)
Is it worth it ?
If the subject's been beaten to death already I'd happily take
a link to some reference ...
__g__
==========================================================
Gerry Filby gerf@gerf.com
Tel: 415 203 9177
Message 2
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| Subject: | Re: Roller tappets - another ~ - OUCH !! |
--> RV9-List message posted by: rv-9a-online <rv-9a-online@telus.net>
Gerry, I purchased an O-320 from Aero Sport with roller tappets. They
were very careful in representing the advantages... solving premature
wear, and not performance benefits.
There will probably be a bit of performance boost due to lower friction,
but that's it.
Why did I purchase roller tappets? It looks to me that the industry is
changing over... Lycoming is going this way, for example. Eventually,
your engine will be the 'old style' or the 'new style'. I think this
may affect resale value. More significantly, if it saves an overhaul
later on, it will pay for itself.
Realistically, if you fly every week, it probably won't matter. On the
west coast (BC), there can be bad weather for weeks, and it's a high
humidity/salt air environment. Anything to delay corrosion problems is
worth it.
I was a bit put off by the $4K additional price tag, but I went ahead
anyway (it fits in my budget). I hope to have the first Aero Sport
O-320 roller cam engine flying this fall.
Vern Little RV-9A
Gerry Filby wrote:
>--> RV9-List message posted by: Gerry Filby <gerf@gerf.com>
>
>
>Folks,
>
>Looks like adding the roller tappet option to your 320 or 360
>is going to add another $3-4000 to the price (that's Aerosport's
>current estimate).
>
>I've been hunting around and haven't found much discussion on
>the upgrade apart from various announcements from Delphi and
>Lycoming. This "new technology" solves premature wear and
>corrosion only ? They also enable alternate cam profiles ? (Not
>likely for this first timer.)
>
>Is it worth it ?
>
>If the subject's been beaten to death already I'd happily take
>a link to some reference ...
>
>__g__
>
>==========================================================
>Gerry Filby gerf@gerf.com
> Tel: 415 203 9177
>
>
>
>
Message 3
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| Subject: | Re: Roller tappets - another ~ - OUCH !! |
--> RV9-List message posted by: kerrjohna@comcast.net
the cost/benefit analysis seems a little extensive for a quick list response, but
you have begun the process of looking at the cost, not add benefit (savings),
how much you fly and how long you will fly at the current rate. How many overhauls
per set of roller tappets?
-------------- Original message --------------
> --> RV9-List message posted by: Gerry Filby
>
>
> Folks,
>
> Looks like adding the roller tappet option to your 320 or 360
> is going to add another $3-4000 to the price (that's Aerosport's
> current estimate).
>
> I've been hunting around and haven't found much discussion on
> the upgrade apart from various announcements from Delphi and
> Lycoming. This "new technology" solves premature wear and
> corrosion only ? They also enable alternate cam profiles ? (Not
> likely for this first timer.)
>
> Is it worth it ?
>
> If the subject's been beaten to death already I'd happily take
> a link to some reference ...
>
> __g__
>
> ==========================================================
> Gerry Filby gerf@gerf.com
> Tel: 415 203 9177
>
>
>
>
>
>
the cost/benefit analysis seems a little extensive for a quick list response, but
you have begun the process of looking at the cost, not add benefit (savings),
how much you fly and how long you will fly at the current rate. How many overhauls
per set of roller tappets?
-------------- Original message --------------
-- RV9-List message posted by: Gerry Filby <GERF@GERF.COM>
Folks,
Looks like adding the roller tappet option to your 320 or 360
is going to add another $3-4000 to the price (that's Aerosport's
current estimate).
I've been hunting around and haven't found much discussion on
the upgrade apart from various announcements from Delphi and
Lycoming. This "new technology" solves premature wear and
corrosion only ? They also enable alternate cam profiles ? (Not
likely for this first timer.)
Is it worth it ?
If the subject's been beaten to death already I'd happily take
a link to some reference ...
__g__
=======================================
===================
Gerry Filby gerf@gerf.com
Tel: 415 203 9177
Message 4
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| Subject: | Re: Roller tappets - another ~ - OUCH !! |
--> RV9-List message posted by: James H Nelson <rv9jim@juno.com>
Hi Gerry,
Yes, I also checked out the roller cam. I would like to do it
but for a 20% bump on the price, No WAY. I would go for a grand more
but no way the 3 - 4000 extra. The marketing people have lost their
way----
Jim Nelson
IO-360 on order from Mattituck
Message 5
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| Subject: | Roller tappets - another ~ - OUCH !! |
--> RV9-List message posted by: "BPA" <BPA@BPAENGINES.COM>
Don't know if you all realize this or not but the price doesn't consist
of just the roller cam and followers, it is a brand new engine kit. Zero
time on every part AND built from all OEM parts. Big difference. Call or
email us, we would be more than happy to discuss the kit engine in
detail.
Allen Barrett
BPE, Inc.
www.barrettprecisionengines.com
(918) 835-1089 phone
-----Original Message-----
From: owner-rv9-list-server@matronics.com
[mailto:owner-rv9-list-server@matronics.com] On Behalf Of James H Nelson
Subject: Re: RV9-List: Roller tappets - another ~ - OUCH !!
--> RV9-List message posted by: James H Nelson <rv9jim@juno.com>
Hi Gerry,
Yes, I also checked out the roller cam. I would like to do it
but for a 20% bump on the price, No WAY. I would go for a grand more
but no way the 3 - 4000 extra. The marketing people have lost their
way----
Jim Nelson
IO-360 on order from Mattituck
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