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From: "George Lendich" <lendich@optusnet.com.au>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
References: <list-3070197@logan.com>
Subject: Re: [FlyRotary] Re: exhaust manifold
Date: Mon, 11 Aug 2008 08:49:00 +1000
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Michael,
Well that just about confirms the size, and for 150 hp that's fine. Wouldn't 
the fuel pump be 1 to 2 psi only?
George (down under)

> George:
>
> If I am not wrong I thionk that those were what Tracy used. I do not 
> believe
> he actually named a size on the carbs he used. I think that he mentions in
> his manual that he pulled them of a Yamaha XS1100. And it stands to reason
> that the Mikuni BS 34-11 were what he used as those were standard on the
> bike. .
>
> Again I am only looking for about 150 hp for my application and those will
> work. I would however like to see if I can do a purely gravity fed system.
> So I will be searching for an appropriately sized Stromberg NA-S as I
> believe the Marvel Shebler MA 4-5 good for about 150 hp do require a fuel
> pump. I have a rebuilt Stomberg NA-S3A1  with a inch and a quarter 
> diameter
> ventury I bough for a Corvair conversion but they are only good for about
> 100 hp all out at full tilt boogey. I believe the dash 4 Stromberg is good
> for 150 hp, now if I can only find one.
>
> Michael
>
>
>
>
> ----- Original Message ----- 
> From: "George Lendich" <lendich@optusnet.com.au>
>
>> Michael,
>> You certainly done some research on carbs if those sites are any
> indication,
>> but I only had a quick look so far.
>> I worked out, from my single calculations of 44mm, that the 3 x 34mm were
>> marginal ( for a 2 rotor) and may be good to 165hp only, where as the 3 x
>> 36mm would get you to 180 hp. These are only rough calculations - do you
>> know what size Tracy used and what HP he was getting. If 160 hp is enough
>> then that's fine.
>> George (down under)
>>
>> > George:
>
>
>
> --
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