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A sample of cores from the perspective
that you can't see, but very important to what the intake charge see's! Two
cores are tube / fin design - middle right is K&J (the only core
manufactured in Australia - please remember that too - bottom right is oe.
Nissan. Other four cores ar bar / plate design - top left & bottom middle
are Spearco, as i think middle left is, & bottom left is a truck core of
unknown origin. |
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Difference between oe.
nissan on left and K&J on right, tube / fin cores.
This is the side the ambiant air sees. |
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Difference between oe. Nissan on bottom
and K&J on top, tube / fin cores. This is the side the
intake charge sees. K&J tube is a one piece extrusion, giving 100% contact
of all cooling surface joints, whereas Nissan type is "two piece" with a
miriad of contact joints, which gives 100% contact if the furnace fusion
process is within all tolerences. |
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Intake charge side of the Bar
& Plate cores. |
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Top sides of core is what the
ambiant air sees. |
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Intake charge side of the Bar &
Plate cores. Note the different tube sizes & fin pitch spacing.Note top left
core has thicker fin material, wider spaceing with big flat contact
area on sidewall, ideal for air / water applications. Bottom left core is
from a truck & so has very big charge channels & course tube pitch,
resulting in less pressure drop but also less heat dissipation. |
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Close up of above |
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Top core is a K&J intercooler
with bottom being a K&J oil cooler core. Note the smaller area tubes used in
the oil cooler. Also, the much thicker wall material in the oil cooler
for the higher pressures encounted. Because oil doesn't compress (or
very little), pressure spikes also have to be allowed for. |
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These are two of the
adapters we make for flow testing flow rates |
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Toyota GT4 intercooler |
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Best interior picture
we can get, without cutting it apart. |
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Core on the bottom is Spearco.
Core sitting on top is the new Ballistic Concepts release from Garret. |
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Close up of the above two cores. Very
similar, but don't be fooled, they are different & would give a little
different results.
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Kenworth core imported by Adrad from
the USA.
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Close up of the above core. Extruded tube & fin
design with very large charge chambers. |
