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Message-ID: <497BBFCF.3080101@sbcglobal.net>
Date: Sat, 24 Jan 2009 20:26:39 -0500
From: John Slade <sladerj@sbcglobal.net>
Reply-To: sladerj@sbcglobal.net
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To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Subject: Re: [FlyRotary] Re: Current Turbos being Used
References: <list-3450627@logan.com>
In-Reply-To: <list-3450627@logan.com>
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I'm not sure where you are, David, but I'd guess that you'd have to go 
up, not down to pay a visit. I moved to Connecticut. The plane is based 
at KWST, (Westerly, RI.)

 >Unless some one can give me a good reason to just go for it.
My thoughts on that were that a turbo and non turbo installation are 
sufficiently different that converting would involve more effort than 
just doing it right the first time. To get an NA install running 
properly you need to pay a lot of attention to ram air and intake 
optimization, and you need to come up with some sort of muffler. 
Obviously the turbo doesn't need ram air, so your intake arrangement can 
be dedicated to cooling, and the turbo acts as a pretty good muffler. 
Exhaust augmented cooling can be arranged with either, but they'd be 
different.

Why not set up for the turbo, but limit the boost to something really 
low - like 5 psi - then gradually increase the boost?

On the oil cooler, a few people have had trouble with aftermarket 
coolers not taking the pressure. I went with two 3rd gen oil coolers in 
series. They're more square than the long thin 2nd gen. It depends on 
the aircraft type I guess, but these fit well either side of my plenum 
in the Cozy. You're going to need lots of oil cooling on that engine - 
It's a cosmo, right?
Regards,
John

David Moyer wrote:
> Thanks for the update John. Very nice setup. I woulndn't mind coming 
> to check out your Cozy if I get down your way. I was plannimg on going 
> to Sun-N-Fun, but i decided to take the time and money and put it into 
> the plane. 
>
> Glad to you got the bugs worked out and that gives a good starting 
> point. I am probably going to get the engine going with out the turbo 
> at first to eliminate other issues and add it later. Unless some one 
> can give me a good reason to just go for it.
>
> I am building the test stand for it the weekend and a mocked up 
> firewall for trial fitting components. I am thinking of going to a 
> beefed up oil coolercover the stock unit that Buly was running with 
> the engine. Any thoughts? 
>
> David Moyer
>
> On Jan 23, 2009, at 3:30 PM, John Slade <sladerj@sbcglobal.net 
> <mailto:sladerj@sbcglobal.net>> wrote:
>
>> Hi David,
>> I have over 50 hours on the Turbonetics "big shaft" with no problems.
>> Detailed specs for the turbo are listed in paragraph "turbo homework" 
>> on my web site,
>> See: http://canardaviation.com/cozy/chap29h.htm
>> Regards,
>> John
>> /Friends don't let friends fly stock turbos
>> /
>>
>> --
>>
>> Homepage:  http://www.flyrotary.com/
>>
>> Archive and UnSub:   http://mail.lancaironline.net:81/lists/flyrotary/List.html