OS 1.4 RX Header and Pipe installation in Focus II

[Ed White]

Bob,

I have 2 degrees right thrust in my Focus II (YS 140).
 Its not quite enough, but close.  5 degrees sounds
like too much.  I would go for 3 degrees.

Ed

--- Robert Harden <rharden1 at cox.net> wrote:

> Thanks for that advise, a Mueller header already at
> the correct dimensions would be nice.  I have the
> engine set at 5 degrees right thrust; is that where
> you have yours set?  Was wondering what the group
> consenses is on right thrust necessary for the Focus
> II.
> 
> Bob
>   ----- Original Message ----- 
>   From: Mike Austin 
>   To: Robert Harden 
>   Sent: Tuesday, September 13, 2005 6:21 PM
>   Subject: Re: OS 1.4 RX Header and Pipe
> installation in Focus II
> 
> 
>   Bob, I just finished a new Focus 2/wOS 140 and
> installed a Mueller header. If you want the exact
> size without fussing with bending a Macs, email him
> at the below. Same price as a Macs and it fits the
> first time. Actually it's a 3" rise if I'm not
> mistaken. Tell him what plane it's for and he will
> fix you up.
> 
>   Mike Austin
>     ----- Original Message ----- Karl G. Mueller
>     E-mail Address(es):
>       kgamueller at rogers.com
> 
> 
>     From: Robert Harden 
>     To: discussion at nsrca.org 
>     Sent: Tuesday, September 13, 2005 11:45 AM
>     Subject: OS 1.4 RX Header and Pipe installation
> in Focus II
> 
> 
>     I would like some advise for installing a header
> and pipe in a Focus II.  I have the OS 1.4 RX
> engine, the OS 72102100  Header and the OS T-6010
> Tuned Silencer.  My problem is that the header has
> interference with the firewall. I don't really want
> to remove material from the firewall to gain
> clearance.  Is there another header that I could
> use?  My other question is if the OS Tuned Silencer
> is the best choice?  I also would like to know what
> the length should be if the tuned silencer is used. 
> I am planning to use an APC 17 X 13 prop and Magnum
> # 1  2 cycle fuel (approx 23% nitro).  All
> suggestions are welcome.
> 
>     Bob Harden


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