Focus Fanatics - View Single Post - Tuning for 3" MAF housing
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Old 05-14-2010, 09:12 PM   #16
tb1999
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Quote:
Originally Posted by illinipo View Post
While you have the theory right, reality doesnt always match the books.

Theres also a lot of difference due to the filter turbulence in drawthrough vs nice straight tubing in blowthrough

Plus with a higher reynolds number due to higher velocity in drawthrough, the boundary layer will be higher off the tube wall, effectively making the tube even smaller and making the air go even faster.
OK, that makes sense.

While the basic theory is correct, there are mittigating circumstances and other theories that ultimately dictate what goes on in the MAF tube

Thanks for helping me understand that. I can get a full night's rest now....
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