Quote:
Originally Posted by GrimmSpeed
The effect the snorkel had on the system was very interesting. The snorkel showed a consistent pressure gain of about 3in H2O. The fact that the inlet is smaller than the outlet lends that the decrease in velocity of the air as it passes through should increase the pressure. However, the fact that this number is nearly high enough to cancel out any one other component’s restriction shows that in stock for the intake is very well designed. Each other component seems to have a restriction of about 4in H2O (air filter, MAF housing, intake elbow).
Chase
Engineering
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Congrats on the research done and also for posting them on a public forum, open to discussion. It shows a lot about your business mentality and I strongly believe that people with this kind of attitude towards potential customers should be rewarded.
I am no fluids dynamics master but I have some reservation about the findings regarding the snorkel. You state that there is a pressure increase which results from the good snorkel design.
I would like to point out that this pressure increase might not be a result of the snorkel's existence but from the existence of the air filter right downstream of your measuring point. Any restriction will cause a pressure increase as suggested by the physics that dictate the Venturi principle.
The air filter may be the real reason that there is an increase of pressure at that point. I could be wrong though, I know I've been in the past
I just wanted to add a little bit to the discussion as:
a) I am interested in intake design and potential gains from it
b) I have alter the intake of my current car (including its snorkel), a Mazda MX5, and recorded significant gains backed by back to back same day dyno runs that verified each step of the way towards a better performing intake.
Once again, congrats for your research and your thorough approach to your work.
Nik