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Carburetor Analysis
is a software that allows to analyze the coupling between neelde
and atomizer of the main float carburetors used in the kart. The
choice of the coupling needle - atomizer is one of the most
important things to have optimum operation of the carburetor
according to the characteristics of the engine, the driving
style of the driver and the characteristics of the track, for
this NT-Project has made Carburetor Analysis allowing you to
analyze the behavior of each coupling needle - atomizer and
moreover automatically find which needle allows to satisfy
your needs for carburetion to different throttle openings.
It also makes one thing unique, and namely it calculates how
you must readjust the main jet when changing type of needle
and atomizer. In fact, each needle and each atomizer
determine a different fluid loss in the circuit of the
maximum, therefore, to have the same fuel mixture at full
load is required a specific main jet. |
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How it works?
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| The software CARBURETOR ANALYSIS
allows to analyze and to find the optimal needle and atomizer for the needs of the engine,
the driver,
and the track. |
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The coupling needle - atomizer is one of the element more important
of the carburetor calibration because it manages the delivery of
fuel from the main circuit at the different throttle openings, for
this reason for each carburetor are avaliable a long series of
needle to combine with atomizers that are available in their turn in
different diameters. |
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With so many needles and atomizer avalaibles to quickly find the
right ones, or understand how to improve the torque in some
points simply changing the needle, it's a difficult task, and also
the needles dimensions tables often instead of helping increase the
confusion, with CARBURETOR ANALYSIS
you'll have everything clear in a moment and you can easily find the needle and the atomizer to improve performance where you are interested |
Use of the software is extremely simple, in fact you'll just
have to enter the engine displacement and the maximum engine
speed, so the software can evaluate the fluid-dynamics
conditions in which works the circuit of the maximum of the
carburetor. |
At this point you can start using the software with the
first functionality available, the comparison between two
coupling of needle - atomizer |
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The first functionality of the software CARBURETOR ANALYSIS
is the comparison from two needle - atomizer coupling. You
will just have to choose the needles and the atomizers, in
addition to the notch of the needle, that you want compare. |
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Clicking COMPARE the software visualizes a graph easy to interpret that
shows the fuel flow at the different throttle opening for the two
coupling that you're comparing (red curve and blue curve). |
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| Other at the chart the software CARBURETOR ANALYSIS
shows how at each opening of the throttle varies in percentage the passage of
fuel between the two needle - atomizer coupling compared.
This is very important to make the right choice based
to the needs of fuel that you have in comparison at the initial situation. |
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The software in addition to making a geometrical
calculation of the needle atomizer coupling, also makes an fluid-dynamic calculation of the main circuit to see the fluid-dynamic losses
that each coupling determines. Thus if you enter the main jet
that you have with the first coupling the software CARBURETOR ANALYSIS calculates the main jet that you will use with the new
needle atomizer coupling to have the same carburetion at full load. |
main jet calculation for the
new needle atomizer coupling |
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| Other the comparison of needle atomizer coupling the
software CARBURETOR ANALYSIS has the great functionality to calculate a new needle -
atomizer coupling according to the needs of fuel that you want obtain at every throttle opening. In fact, after entering the needle and the
atomizer that you have installed, you instruct the software to find which needle and
which atomizer allow you to have more or less fuel at the different throttle openings. |
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You must simply move the bars to indicate to the software how much
you want leaner or richer the jetting at the different throttle
openings. |
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For example, suppose you have the need to enrich the fuel
mixture in the first stage of delivery. Move the bars as you
want and click SEARCH within seconds the software will calculate the
needle atomizer coupling that is closest to the request made. |
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The chart shows the coupling that you had initially (red curve),
that you would want to modify the torque as desired (blue curve) and
that calculated by the software that allows you to get closer
between all possible combinations of needles and atomizers
available. |
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The software CARBURETOR ANALYSIS not only calculates the new
needle to be used, but also the diameter of the atomizer to match it
and the optimum notch to obtain the desired torque. |
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Other at the chart the software CARBURETOR ANALYSIS
shows how at each opening of the throttle
varies in percentage the passage of fuel with the new needle
- atomizer coupling calculated.
This is very important because you can immediately see the
new fuel flow respect at your request. The software also
indicates of what in pecentage terms the needle - atomizer
coupling calculated, deviates from the desired one.
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As already seen for the comparison, also in this case the graph in
addition to the red, blue and green lines also appear two black
lines, these are relative to the diameter of the main jet, in fact,
the software in addition to making a geometrical calculation of the
needle atomizer coupling, also makes an fluid-dynamic calculation of the main circuit to see the fluid-dynamic losses
that each coupling determines. Thus if you enter the main jet
that you have with the first coupling the software CARBURETOR ANALYSIS calculates the main jet that you will use with the new
needle atomizer coupling to have the same carburetion at full load.
This is a feature unique because the biggest problem that you have
when you change the type of needle is that the carburetion becomes
incorrect at full load (think what happens in Dellorto VHSH30 when
you go from needle K to needle U, but this is true in general for
all the needles because their shape and size change the
fluid-dynamic losses of the circuit). |
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calculation of the main jet for the needle - atomizer
coupling calculated by the software for the new requests of
fuel flow. |
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| click on the icon to
see the full presentation in pdf format |
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Purchase |
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NT-PROJECT - Ferrara (Italy)
- info@ntproject.com |
tutto il
materiale contenuto nel presente sito è coperto dalle leggi sul diritto d'autore ©
2005/19 |
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