Toymods Car Club Inc: Tech & Conversions => intercooler quandry???

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YelloRolla
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Re: intercooler quandry???

Sat, 07 May 2005 12:02

Quote:

the end tanks are designed so the air flows through the whole core

- some end tanks are designed so. Just because they are tapered and look to be right doesn't mean the they are going to flow evenly across the whole core.
To achieve equal flow across the core, one needs to consider that the front to back as well as top to bottom needs to be equalised.
In the case of most intercoolers where they enter at the same side (as in case 3) or both top or both bottom, then there will be a tendency to favour the most direct air path (air will naturally follow the path of least resistance).

Quote:

but wouldnt there be differences, maybe not noticeable, in cooling capacity

No, cooling capacity is a measure of the surface area (both internal and external) of the intercooler. All else being equal, a short path intercooler (#3) can cool as much as as longer path intercooler as long as the external/internal suface area is the same (ie if they are the same brand and measure 300 x 600).
The short path cooler achieves equivalent cooling by slower airspeed through tubes, but (as henn pointed out) the available area for the air to flow through is greater and therefore can potentially flow more.

The easiest path to equal flow is to have entry and exit at opposing corners.

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