lightspear27
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| posted on 25/1/06 at 12:32 PM |
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NACA duct
Hi,
I'd like to design and build my own NACA air intake.
Are there informations on the net about how to design an efficient NACA duct?
Or do some locostbuilders have usefull informations about the design of these air intakes?
Any info will be helpfull.
Thanks,
Stefano
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gingerprince
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| posted on 25/1/06 at 12:43 PM |
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naca duct? Sounds like something to keep your goolies cool 
I'll get me coat...
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Spyderman
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| posted on 25/1/06 at 12:51 PM |
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There is a basic formula for creating NACA ducts. I can't lay my hand on the book at the moment, but you should be able to find the essentials
with a google search.
If you can't find it then I'll have another look amongst my books.
Terry
http://www.recumbents.com/wisil/nacaduct/naca-duct.htm
[Edited on 25/1/06 by Spyderman]
Spyderman
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timf
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| posted on 25/1/06 at 12:55 PM |
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try here for naca duct
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lightspear27
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 posted on 25/1/06 at 01:22 PM |
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Thanks timf ... usefull link
gingerprince said :
posted on 25/1/06 at 13:43
naca duct? Sounds like something to keep your goolies cool
I'll get me coat...
Re : Yes ... need fresh air to supercharge my dick
Seriously ... I'll need fresh air for my supercharger that will be at the back of a quite long and closed bonnet (Ginetta G27).
I do not want to ruin the look of the car with big bulges and scoops so the NACA duct seem interesting.
I do not want to use standard off the shelf Naca ducts. The bonnet is already painted and I do not want to work with resin and fibreglass nor to do a
new paintjob.
I think I'll design my own aluminium duct with an engraved Ginetta (or Supercharged Ginetta) logo on it and that I'll fit it with rivets
or countersunk bolts (like aircraft and bike fuel caps) without the need of a new paint.
Thanks for the replies,
Stefano
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lightspear27
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| posted on 25/1/06 at 01:29 PM |
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ant thanks to spyderman
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mattpilmoor
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| posted on 25/1/06 at 03:20 PM |
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If you u2u me your email address i'll send you a document that will allow you to design your inlet properly.
When properly designed the drag of a NACA inlet is about 32% less than that of a scoop inlet but its efficiency is not so good (at best it is 12% less
efficient than a scoop).
Matt
Measure twice - Cut once - Still f*!K it up!
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Messenjah
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| posted on 25/1/06 at 03:21 PM |
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it may have been ns dev that posted not sure but there was a link to a guy who does custom stainless or ali stuff with engraving might be worth a
shout lemme find a linky
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lightspear27
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| posted on 25/1/06 at 03:26 PM |
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Yes ... found the link for engraved aluminium and already asked for a few more informations.
Thanks
mattpilmoor ... you have u2u
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Messenjah
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| posted on 25/1/06 at 03:28 PM |
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okidoki then 
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skydivepaul
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| posted on 26/1/06 at 04:28 PM |
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see thread here clicky naca duct?
http://www.smartideasuk.com
http://www.smartmapping.co.uk
HD CCTV
3D design solutions and integration
IP security systems
access control systems
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John P
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| posted on 27/1/06 at 09:06 AM |
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NACA Duct
I've got a .pdf file which may help but can't seem to attach it.
I used the attachnent button at the bottom of the "Post Reply" screen and selected the file from my C drive but this doesn't seem to
work.
Any help would be appreciated.
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