mintor setup / fuel lines / ES pipes

[Wayne Galligan]

Vincent,

Really the best way to do this is on a test stand if you can.  Keep moving
the pipe in till you get max rpm and then back it off about .5".  If the
midrange is sluggish or doesn't respond properly lengthen it till it runs
good and transitions in the midrange well.  Don't worry too much about peak
rpm as the main thing your looking for is good smooth transition.   You can
get 2-300 more rpms at peak by having a shorter pipe but it will suffer in
the midrange.  Changing props will alter this setup.  A larger prop or more
load will need to be lengthened some. Smaller props or less load will need a
shorter setup. Nitro content will change things too so try to stay
consistent and use the same fuel.  My experience with the Mintor 1.70 is
they like a little longer setup and really run good in the midrange.  This
is with the Mintor c.f. pipe.  We also found that the performance figures
the Italians are using are from using 16x14 and 16x12 props.  The 17x12 and
17x13 props we are using require a longer setup then the Italians are
recommending.

My O.S. is running really sweet on a new proto-type c.f. (3.5oz) pipe that I
am testing and will let you all know about it after I get some more fuel
through it.

Wayne G.

----- Original Message ----- 
From: <vicenterc at comcast.net>
To: <discussion at nsrca.org>
Cc: "Woodward James R Civ 412 TW/DRP" <James.Woodward2 at edwards.af.mil>;
<discussion at nsrca.org>
Sent: Monday, February 23, 2004 4:22 PM
Subject: Re: mintor setup / fuel lines / ES pipes


> Jim:
>
> I need help.  How I know if my pipes are long or short.  I am running the
OS 140 RX with the ES pipe but I don't know what model I have.  I also have
a Mintor 140 with the Mintor pipe.  No idea if the Mintor pipe is long or
short.
>
> Vicente Bortone
>
> =====================================
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>


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