Head questions...
Thread Starter
Drifting
Joined: Nov 2000
Posts: 1,483
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From: Las Vegas Nevada
Head questions...
Not your normal head questions, so some can be releaved...
My question has to do with the design of a normal SBC head.
Why is the head/manifold port rectangular? Seems to me a round hole all the way would flow smoother. But I honestly know nothing about the sciences of air flow (Fluid Dynamics is it?)
Anybody out there able to give a reason why its square?
On the TPI motor it goes from round (runners/manifold) to square, to round (valve) that to me makes no sense, and is what caused this pondering...
Matt
[Modified by VetteRacer282, 8:43 AM 3/14/2003]
My question has to do with the design of a normal SBC head.
Why is the head/manifold port rectangular? Seems to me a round hole all the way would flow smoother. But I honestly know nothing about the sciences of air flow (Fluid Dynamics is it?)
Anybody out there able to give a reason why its square?
On the TPI motor it goes from round (runners/manifold) to square, to round (valve) that to me makes no sense, and is what caused this pondering...
Matt
[Modified by VetteRacer282, 8:43 AM 3/14/2003]
Race Director
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From: The Top of Utah
Re: Head questions... (VetteRacer282)
There may be more and better reasons, but "packaging" is certainly one. The gen I ports can only be made so wide before they run into the push rod holes. If they were round, that would severly limit their cross sectional area. Also, not being a fluid dynamics expert, I share your thoughts on the round shape. For one, the surface area to volume ratio is optimized in a round "tube". An OHC set up would clear some available space.
RACE ON!!!
RACE ON!!!
Race Director
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Re: Head questions... (VetteRacer282)
Review at least the last three posts on the following thread:
http://forums.corvetteforum.com/zerothread?id=508030
Duke
http://forums.corvetteforum.com/zerothread?id=508030
Duke
