fleck
New Member
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- Sep 22, 2008
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- Location
- Florida
- Vehicle Year
- 1994
- Make / Model
- Mazda
- Engine Size
- 3.0
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- Manual
Positive pressure is supposed to keep particles from entering even through the intake fans, as there is so much air pressure in the case that the particles are pushed back out.
At least, that's how I think the explanation went.
So yeah, if you don't know FOR SURE what the total CFM is going in/out and you just have 1 or 2 more fans pushing air in than out, that doesn't necessarily mean there is positive pressure, as different fans of even the same sizes can blow different CFMs at different speeds. Remember that flow can be improved with design, so it doesn't matter what size or RPM it runs at.
At least, that's how I think the explanation went.
So yeah, if you don't know FOR SURE what the total CFM is going in/out and you just have 1 or 2 more fans pushing air in than out, that doesn't necessarily mean there is positive pressure, as different fans of even the same sizes can blow different CFMs at different speeds. Remember that flow can be improved with design, so it doesn't matter what size or RPM it runs at.
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