[f-AA] Anyone know if the Stroker C85 w/ O200 parts allows just swapping O200 pistons? Or another STC?

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Matt Slezak

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Aug 29, 2016, 8:05:55 PM8/29/16
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I read online that the STC has several varieties.  The C85 has 6.3:1 piston compression ratio while the O200 has 7:1.  I can get new O200 pistons with rings quite cheap right now.  I also already have balanced O200 rods.  But reading online many say when you put the O200 crankshaft in the engine performance isn't any better than the stock C85.  My new engine is a C85 mid-time just thinking that a top overhaul will be a few years out and why not add HP in a few years if the price is right...

Best,

Matt Slezak

j...@joea.com

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Aug 29, 2016, 10:03:11 PM8/29/16
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Anyone have an idea what the compression ratio is on the Don's Dream Machine engines?
Am guessing that it sure is not 6.3 and would hope its higher than 7.1!

Joe A


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Doug Rounds

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Aug 30, 2016, 12:23:38 AM8/30/16
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Joe I did the Aircraft Specialities conversion on my Champ. And the
airplane may be for sale in the near future--Old age and 35 years of
breathing airline cabin smoking is catching up. It is a slick
conversion and likes to run. I am waiting or someone to put one in a
Chief see what at widebody does, Doug

Jim Chuk

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Aug 30, 2016, 12:38:15 AM8/30/16
to fearless Aeronca Aviators, aer...@westmont.edu
My 11BC Chief  has the American Specialities STC for the O200 crank, pistons and cylinders.  I don't know what the improvement was from before because it was done before I bought the plane.  The engine now has about 200 hrs since the STC, and has a McCauly  7148 prop.  It will hit red line without much problem at full throttle flying straight and level. It will do right at 100 MPH true at 2400 RPM.  One thing in it's favor for the speed is it has a 32' clipped wing with drooped tips.  JimChuk

Thomas Holmes

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Aug 30, 2016, 7:55:21 AM8/30/16
to f-aa, Joe Abrahamson
Joe,
the O200 pistons are a little taller from the wrist pin to the crown.  I just eyeballed it and decided that good was good enough!!  ;-)

Tampa Tom

Matt Slezak

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Aug 30, 2016, 10:33:04 PM8/30/16
to aer...@westmont.edu, Joe Abrahamson
After reading replies and looking around the internet at all the STCs, they all seems to require O200 rods, O200 pistons, and an O200 camshaft.  So this doesn't look like a good option for more HP (i.e. just higher compression pistons).  BTW anyone doing a Stroker just because they can't find a C85 camshaft there's 3 new on eBay for $900 


Also complete 4 cylinder C85 piston kits with rings (4 available) - this is dirt cheap the ring sets alone cost more:



A yellow tagged O-200 camshaft for $400 here continental aircraft camshaft C-90 / O-200 yellow tag if you are doing the Stroker:


Hope those eBay links make it to someone part searching now... really great deals.

We'll see how much money I want to throw at the new C85 that arrives tomorrow, seems the best way for legal HP is to send off to Lycon Welcome to Ly-Con Aircraft Engines for the $1200 porting / flowing of cylinders.  That is only if I don't have to replace the pistons / rings / cylinders (honing) in doing so.  Supposedly gains around +15HP which would put it at 100HP at legal RPMs at a cheap price.  But I'll just start at 85HP and can wait until whenever / if I want that upgrade...

Matt Slezak

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Aug 30, 2016, 11:18:46 PM8/30/16
to aer...@westmont.edu, Joe Abrahamson
I should also note to those doing the C85 Stroker I have O-200 balanced rods w/in 2g each (not yellow tagged, discounted accordingly) that could complete your set if you buy the yellow tagged cam in the previous post for $400, there are also O-200 new pistons on eBay but more expensive than the C85 ones ($259 each kit w/ rings, 4 std available), or if you need P15 oversize, see the second link $436 for 4 new ones (no rings).  So that would get you the kit for under $2K.  And if your prop does happen to run to the RPMs of an O-200, well, you'll get 100HP out of that C85 Stroker...  Safely, but probably not legally :)  





Ian Harvie

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Aug 30, 2016, 11:54:03 PM8/30/16
to aer...@westmont.edu, Matt Slezak
If you use all that then you would have an O-200 engine. My Don's dream
engine has all that but with a C-85 cam, I was under the impression that
the FAA agreed that it was still a C-85 (Modified) which means you still
are under the 91 HP where a spar inspection is required.

Ian


On 31/08/2016 12:32 PM, Matt Slezak wrote:
> After reading replies and looking around the internet at all the STCs,
> they all seems to require O200 rods, O200 pistons, and an O200
> camshaft. So this doesn't look like a good option for more HP (i.e.
> just higher compression pistons). BTW anyone doing a Stroker just
> because they can't find a C85 camshaft there's 3 new on eBay for $900
> Continental Aircraft Camshaft for C-85 engine

> <http://www.ebay.com/itm/Continental-Aircraft-Camshaft-for-C-85-engine-/182257467157?hash=item2a6f643f15:g:3RgAAOSwV0RXwIAt&vxp=mtr>
>
> $ 895.0

>
>
>
>
> Continental Aircraft Camshaft for C-85 engine
>
> US $895.00 New in eBay Motors, Parts & Accessories, Aviation Parts &
> Accessories
>
>

> <http://www.ebay.com/itm/Continental-Aircraft-Camshaft-for-C-85-engine-/182257467157?hash=item2a6f643f15:g:3RgAAOSwV0RXwIAt&vxp=mtr>


>
> Also complete 4 cylinder C85 piston kits with rings (4 available) -
> this is dirt cheap the ring sets alone cost more:
> Continental C-85 Piston Set, P/N 40327 STD or +.015, with rings
> included

> <http://www.ebay.com/itm/Continental-C-85-Piston-Set-P-N-40327-STD-or-015-with-rings-included-/182256437184?hash=item2a6f5487c0:g:dVUAAOSwzJ5XWxor&vxp=mtr>
>
> $ 425.0

>
>
>
>
> Continental C-85 Piston Set, P/N 40327 STD or +.015, with rings
> included
>
> Continental C-85 Piston Set, P/N 40327 STD or +.015, with rings
> included in eBay Motors, Parts & Accessories...
>
>

> <http://www.ebay.com/itm/Continental-C-85-Piston-Set-P-N-40327-STD-or-015-with-rings-included-/182256437184?hash=item2a6f5487c0:g:dVUAAOSwzJ5XWxor&vxp=mtr>


>
>
> A yellow tagged O-200 camshaft for $400 here continental aircraft
> camshaft C-90 / O-200 yellow tag

> <http://www.ebay.com/itm/continental-aircraft-camshaft-C-90-O-200-yellow-tag-/172316846646?hash=item281ee26a36:g:ctQAAOSw-itXs6JL&vxp=mtr> if

> you are doing the Stroker:
>
> $ 400.0
>
>
>
>

> continental aircraft camshaft C-90 / O-200 yellow tag
>
> US $400.00 Remanufactured in eBay Motors, Parts & Accessories,
> Aviation Parts & Accessories
>
>

> <http://www.ebay.com/itm/continental-aircraft-camshaft-C-90-O-200-yellow-tag-/172316846646?hash=item281ee26a36:g:ctQAAOSw-itXs6JL&vxp=mtr>


>
> Hope those eBay links make it to someone part searching now... really
> great deals.
>
> We'll see how much money I want to throw at the new C85 that arrives
> tomorrow, seems the best way for legal HP is to send off to Lycon

> Welcome to Ly-Con Aircraft Engines <http://www.lycon.com/> for the

> $1200 porting / flowing of cylinders. That is only if I don't have to
> replace the pistons / rings / cylinders (honing) in doing so.
> Supposedly gains around +15HP which would put it at 100HP at legal
> RPMs at a cheap price. But I'll just start at 85HP and can wait until
> whenever / if I want that upgrade...
>
>
>
>
>
>
>
>
> Welcome to Ly-Con Aircraft Engines
>
> Ly-Con Aircraft Engines
>
>

> <http://www.lycon.com/>


>
>
>
> On Tuesday, August 30, 2016 6:55 AM, Thomas Holmes
> <thomasth...@gmail.com> wrote:
>
>
> Joe,
> the O200 pistons are a little taller from the wrist pin to the crown.
> I just eyeballed it and decided that good was good enough!! ;-)
>
> Tampa Tom
>

> On Mon, Aug 29, 2016 at 10:02 PM, <j...@joea.com <mailto:j...@joea.com>>

> wrote:
>
> Anyone have an idea what the compression ratio is on the Don's
> Dream Machine engines?
> Am guessing that it sure is not 6.3 and would hope its higher than
> 7.1!
>
> Joe A
>
> On 30 Aug 2016 at 0:05, Matt Slezak wrote:
>
> >
> > I read online that the STC has several varieties. The
> > C85 has 6.3:1 piston compression ratio while the
> > O200 has 7:1. I can get new O200 pistons with rings
> > quite cheap right now. I also already have balanced
> > O200 rods. But reading online many say when you
> > put the O200 crankshaft in the engine performance
> > isn't any better than the stock C85. My new engine is
> > a C85 mid-time just thinking that a top overhaul will be
> > a few years out and why not add HP in a few years if
> > the price is right...
> >
> > Best,
> >
> > Matt Slezak
>
>
> ______________________________ _________________
> Aeronca mailing list

> Aer...@westmont.edu <mailto:Aer...@westmont.edu>
> http://mail.westmont.edu/ mailman/listinfo/aeronca
> <http://mail.westmont.edu/mailman/listinfo/aeronca>
>
>
>
> _______________________________________________
> Aeronca mailing list
> Aer...@westmont.edu <mailto:Aer...@westmont.edu>
> http://mail.westmont.edu/mailman/listinfo/aeronca


>
>
>
>
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> Aer...@westmont.edu
> http://mail.westmont.edu/mailman/listinfo/aeronca
>
>

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Doug Rounds

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Aug 31, 2016, 12:53:26 AM8/31/16
to aer...@westmont.edu
If it isn't certified under the present CAA/FAA rules you could be in
BIG trouble if you have persdonal anything--Lawyers are being fazed
out of the new magic electronic compter estates, Sorry Jerry, So if
you don't go by the in place rules you may have a bill to pay..
Computers and emails have ruined the country I grew up in--where let
the "Buyer Be Ware" ruled..If you invented the wheel today it would
take you years and mega insurance costs policies to get it approved
and by then all those that need your invention would be buried and
happyly flying in the Lords world....Doug PS--The world is
simple--the government rules are not. People are their own
ememies..And to think we won World War II in less than 4 years..

Matt Slezak

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Aug 31, 2016, 1:09:58 AM8/31/16
to Ian Harvie, aer...@westmont.edu
Ian - thanks for chiming in here.  

So Don's Dream Machine STC lets you keep the C85 cam?  Then you'd be putting out more HP for sure on that engine at the C85 RPMs since your O200 pistons add compression (6.3:1 to 7:1).  Can you recall if they let you also keep the C85 rods under Don's STC?  If so I'll be looking out for the O200 pistons on eBay... If not, well changing rods adds a lot to the price.

I have no idea about the spar inspection, but all the STCs leave the engine a C85 that I've come across.

Best,

Matt Slezak

Ian Harvie

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Aug 31, 2016, 3:06:02 AM8/31/16
to aer...@westmont.edu
Doug

I agree with most things you say, but have to take you to task on this!

It was the ALLIES won the war, of which America was a part.

Ian

j...@joea.com

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Aug 31, 2016, 8:56:18 AM8/31/16
to aer...@westmont.edu
Ian,

Totally agree, it was a joint effort, most of the world against the Axis of Germany, Italy and
Japan.

The one thing that America brought to the effort was its production facilities. Along with our
allies we built the equipment needed to over-whelm our enemies. Just wish that we had
made a few more airplanes, jeeps, motorcycles and guns and put them in my hangar!! :)

Joe (who wishes we had a few leaders like Patton and Truman around these days!)

On 31 Aug 2016 at 17:04, Ian Harvie wrote:

> Doug
>
> I agree with most things you say, but have to take you to task on this!
>
> It was the ALLIES won the war, of which America was a part.
>
> Ian
>
>
> On 31/08/2016 2:53 PM, Doug Rounds wrote:
> > If it isn't certified under the present CAA/FAA rules you could be in
> > BIG trouble if you have persdonal anything--Lawyers are being fazed
> > out of the new magic electronic compter estates, Sorry Jerry, So if
> > you don't go by the in place rules you may have a bill to pay..
> > Computers and emails have ruined the country I grew up in--where let
> > the "Buyer Be Ware" ruled..If you invented the wheel today it would
> > take you years and mega insurance costs policies to get it approved
> > and by then all those that need your invention would be buried and
> > happyly flying in the Lords world....Doug PS--The world is
> > simple--the government rules are not. People are their own
> > ememies..And to think we won World War II in less than 4 years..

Jerry Eichenberger

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Aug 31, 2016, 9:03:13 AM8/31/16
to aer...@westmont.edu, j...@joea.com
Ian -
We also have to remember that the Soviets were Allies, and the y contributed a lot to the effort. How many divisions of the Wehrmacht were tied up on the Eastern Front, who otherwise would have been fighting in western Europe?
And always remember that the Russians took more casualties, including civilians, than the rest of the Allies combined.

Jerry A. Eichenberger
Eichenberger & Associates
6037 Frantz Rd., Ste. 107
Dublin, OH 43017
Voice: 614-798-1600
Fax: 614-798-1620
Website : www.ehlawyers.com
Email: jeiche...@ehlawyers.com

Don Harvie

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Aug 31, 2016, 9:47:48 AM8/31/16
to f-AA List aeronca, j...@joea.com
Even before America 'officially' joined the war it contributed greatly via the lend - lease scheme. Although before that got approval Roosevelt had to overcome a lot of opposition for America to become involved at all. And (I think) at the outbreak of WW2 there wasn't a great deal of industry in America that was geared up to produce the war time equipment either.

Don H



Sent from my 'phone

Doug Rounds

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Aug 31, 2016, 12:03:17 PM8/31/16
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I agree but the Allies didn't have the atomic bomb or Gen Patton or
Eisenhower and build a B-24 every hour at Willow Run. I end there. I
grew up during that time and have many memories good and bad. Most
people today have never experienced anything like it--rationing, food,
gas, tires, clothes and etc. And better hope they never do--it would
be a TREMDOUS attitude adjustment..# Doug

Jerry Eichenberger

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Aug 31, 2016, 12:45:54 PM8/31/16
to aer...@westmont.edu, j...@joea.com
Doug -
Even before Pearl Harbor, wasn't it expected that we would eventually enter the war? The old Civilian Pilot Training program began before Pearl Harbor, to start building a corps of aviators. I don't know much about the late 1930s to 1941 period, but something makes me think that we did start getting ready for the inevitable.


Jerry A. Eichenberger
Eichenberger & Associates
6037 Frantz Rd., Ste. 107
Dublin, OH 43017
Voice: 614-798-1600
Fax: 614-798-1620
Website : www.ehlawyers.com
Email: jeiche...@ehlawyers.com


-----Original Message-----
From: Aeronca [mailto:aeronca...@westmont.edu] On Behalf Of Doug Rounds
Sent: Wednesday, August 31, 2016 12:03 PM
To: aer...@westmont.edu; j...@joea.com
Subject: Re: [f-AA] Anyone know if the Stroker C85 w/ O200 parts allows just swapping O200 pistons? Or another STC?

Doug Rounds

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Sep 1, 2016, 12:05:23 AM9/1/16
to aer...@westmont.edu
Jerry Pearl Harbor caught us off guard--we were militarizing because
of Hitler and Roosevelts problems with his supeere court, losing
control and the economy in general. During this period as a kid I got
to watch the WPA workers lean on their shovels while they were paving
streets,building parks, stadiums abd anythng that the govr't could
figure to make work--There were CCA camps for young men to working and
send teir money home to their parents. I lived it as a youngster and
thru WWII--Korea was my war getting in college. I will leave it there
but if you didn't live thru that period you don't have clue--like the
millennials todays--they are spoiled--End of Speech.. Doug -- I will
be personally be leaving teh aviation scene in the near future and
spend the rest of my life, what is left enjoying it--I have had too
many airline pilot friends that I worked with leave scene many years
younger than I am now and in fact today it is hard to converse with
people that can just BS flying as it used to be. It is hard to find
anyone today, other than a few, that know what these old airplanes
were and are--many make mountains out of mole hills. The country has
doubled population since my arrivial, social rules in the 1060-70's
opened the door for self center ignorance on all fronts God Bless the
USA. . With that I leave--Doug--it has been a good ride since 1956 but
all things must come to an end..Time to forget about "regualtions"--

Doug Rounds

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Sep 1, 2016, 12:08:46 AM9/1/16
to aer...@westmont.edu
PS--I don't have a spell checker..Not bottle talk.. Doug

Jerry Eichenberger

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Sep 1, 2016, 9:38:02 AM9/1/16
to aer...@westmont.edu
Doug -
My father always called WPA "We Piddle Around", and he would replace piddle with a shorter, four letter word that starts with P.

Richard Murray

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Sep 1, 2016, 9:46:09 AM9/1/16
to aer...@westmont.edu
Pool - Play - Putt - Pose - Part - ???? ....hmmmmm   :>))

On Thu, Sep 1, 2016 at 9:37 AM, Jerry Eichenberger <JEiche...@ehlawyers.com> wrote:
Doug -

Rafael Gomez Blanco

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Sep 1, 2016, 10:51:35 AM9/1/16
to aer...@westmont.edu
Jooooooooooooooooooohn he is starting it!!!!! MMO? I meant PPO?


-----Original Message-----
From: Richard Murray <murra...@gmail.com>
To: aeronca <aer...@westmont.edu>
Sent: Thu, Sep 1, 2016 6:45 am
Subject: Re: [f-AA] Anyone know if the Stroker C85 w/ O200 parts allows just swapping O200 pistons? Or another STC?

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