Naca vents?
#1
Charter Member #655
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Naca vents?
Has anyone ever found Nascar style Naca vents that will replace the old rectangle vents that most of us have? I remember a thread a long time ago that someone was going to make some.....did it ever happen?
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If your boat has a sail do you ride a horse to the ramp?
If your boat has a sail do you ride a horse to the ramp?
#2
Charter Member #232
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I think I started that thread a while back. Man that was like a LONG time ago. I never did wind up doing anything yet. There were a few suggestions as to were you can get them.
Jon
Jon
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#3
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http://www.racerpartswholesale.com/naca.htm
http://www.butlerbuilt.net/page23.html
here is a couple of links
http://www.butlerbuilt.net/page23.html
here is a couple of links
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Ray
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#4
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Somebody on the board had some NACA ducts glassed into the hull sides to feed the motor. Can't remember who, but when I see his name, I'll come back and post it.
#5
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I think I found it!
http://www.offshoreonly.com/forums/s...ght=Naca+vents
Do a search on Naca vents and you will find a few topics. I had to do it after seeing Ray's links I could not picture how they would look on a boat. NICE on the above link.
http://www.offshoreonly.com/forums/s...ght=Naca+vents
Do a search on Naca vents and you will find a few topics. I had to do it after seeing Ray's links I could not picture how they would look on a boat. NICE on the above link.
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#6
Charter Member #655
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I was hoping that someone made one that would fit over the existing holes that are in our boats tthat way we wouldn't have to glass anything in.....
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If your boat has a sail do you ride a horse to the ramp?
If your boat has a sail do you ride a horse to the ramp?
#7
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There's a guy here in Richmond that was making them, and then he didn't get any interest so he dropped the project. I just spoke to him on the phone - his name is Steve - and he's willing to start back up again if anyone is interested. You can email him at [email protected]
Here's one he made, but he also can make the rectangle kind.
Here's one he made, but he also can make the rectangle kind.
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Steve Gresham
'03 Donzi 33ZX
Steve Gresham
'03 Donzi 33ZX
#9
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Originally posted by JS232
How does those vents affect the engine' performance? And waht is it exactly?
How does those vents affect the engine' performance? And waht is it exactly?
They, of course were involved in all aspects of Aeronautical Science and Aviation and developed one of the largest databases on Fluid Dynamics and flight mechanics.
The inlets, diffusers and ducts you see today on many race cars, boats, and aircraft are decendants of those developed during the pioneering days of aviation and space travel.
Of course, through marketing, costing, and pure ineptness in design, most of the ducts you buy today off the shelf at these "Ricer Go-fast" shops have little in common with the real thing.
Hell, most of them when alalyzed or tested perform rather poorly and don't deserve to be associated with the term NACA...
Choose wisely.
#10
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those are exactly what I have been looking for, but wasn't sure what they were called. Now add them to these ram air boxes and you have some nice cool air for the motor, not that stale air.
http://www.ramairbox.com/
http://www.ramairbox.com/
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Les
Hawaii no ka 'oi
Les
Hawaii no ka 'oi