OS 160 FX Set-up

[John Contreras]

I also am planning on using os 160fx. and wanted to know where to find a
Karl Mueller header. 


> [Original Message]
> From: Gene Maurice <gene.maurice at attbi.com>
> To: <eric.henderson at comcast.net>; NSRCA List <discussion at nsrca.org>
 > Date: 1/12/03 10:48:20 AM
> Subject: OS 160 FX Set-up
>
> Eric,
> 
> Thanks for very informative article!!!!
> 
> I'm running and OS 160FX set-up very similar to what you described: OS
> 160FX, Perry Regulator pump, 20 oz. tank on CG, Karl Mueller Header, Macs
> 15cc Quiet Pipe @ 18.75", Magnum 15%, all mounted in a new Entropy. The
> engine is barely broken in, 1.5 gals through it, and as such I've been
> letting it unload with a 16x13N turning 8700-8800 RPM and running it with
3
> oz. of oil added to a gallon of fuel. I have found that this setup likes
to
> be REALLY lean, main needle about 3/4-7/8 turn out and the pump adjustment
> set screw is showing 4 or so threads. The pump instructions said don't let
> the adjustment screw come out, so I've been somewhat reticent to back it
out
> any farther.
> 
> In your article you describe setting the needle way out and then adjusting
> the pump. Question: how far out did the pump adjustment screw end up? And,
> what did the main needle end up at? Is it possible that I just have a pump
> with a somewaht high output pressure?? Mmmmm?? I've never played with a
> Perry pump before so I really have no basis for comparision.
> 
> The set up I'm using seems to be working OK, its just pretty sensitive to
> the needle valve at full throttle. Solid 1800 RPM idle, immediate response
> to throtle command, and no hesitation or loading in mid range. In 12
flight
> on the plane I've only had one dead stick (too rich). And, this set up is
> definatly MONSTER horsepower for a comapratively low investment. This is
> coming from a 10 year YS user!
> 
> Any input would be greatly appriciated.
> 
> Gene Maurice
> Plano, TX
> AMA 3408
> NSRCA 877
> 
> 
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--- John  Contreras
--- jacontrera at earthlink.net
--- EarthLink: It's your Internet.


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