Bring back the NACA duct.....

[christofmccracke]

christofmccracke said:

Apparntly they were for a snorkel type thing for rallying

http://www.google.co.uk/imgres?q=evo+rally+snorkel&um=1&hl=en&safe=off&client=safari&tbo=d&tbm=isch&tbnid=F7SVt3qw5c8cfM:&imgrefurl=http://www.flickr.com/photos/30233756%40N04/page3/&docid=vbwi2XLoHIPwDM&imgurl=http://farm6.static.flickr.com/5204/5265908507_fd18de9377.jpg&w=500&h=335&ei=EOiuTsXWGYX18QOG1vW-Cw&zoom=1&biw=1024&bih=690

[Viper]

my old viper has one, ramming the air straight onto the filters

Edited by Viper on Monday 31st October 18:47

[Jerrold]

924 turbo

[Randy Winkman]

[ajprice]

Audi R8 V12 TDI concept, in the roof.

[pthelazyjourno]

The Black Flash said:

Nope, they're outlets, your NACA duct is an inlet, designed to let air in without disturbing the airflow over a surface.

Car still counts though - it has a couple of NACA ducts on the bottom of the flat undertray. Granted, you can't see them in that picture!

Thing is, they just don't suit the styling of lots of modern cars - stick them on the side of the Elise for instance, in place of the side vents, and it would look absurd.

[detomaso]

RobCrezz said:

liner33 said:

Apparently the ones on the Evo's have next to no actual benefit, I suspect the same is true on other cars

Oh really?

Pretty certain that's the case; in aero terms they serve no benefit in applications for road cars as they don't travel fast enough, hence why the yellowbird didn't have them as standard.

[Alfanatic]

LotusOmega375D said:

Actually a dummy one, although some owners opened it up:

Repeated (it was fake too) on the bonnet of the GTV6 3.0, presumably to make the massive bump needed to clear the carbs look a bit more interesting:

[ApexJimi]

For some reason, I automatically thought of Dahlback's golf -

Edited by ApexJimi on Monday 31st October 22:44

[rabidant]

one of my favorite NACA views

[B'stard Child]

Having "fixed plastic" window'd my track slag ventilation by cracking the rear windows open was no longer possible - these reverse NACA ducts worked well

[poo at Paul's]

Viper said:

my old viper has one, ramming the air straight onto the filters

Edited by Viper on Monday 31st October 18:47

Can i just say that they'd all get it, but the one on the far right would get it first.

[Frances The Mute]

poo at Paul's said:

Can i just say that they'd all get it, but the one on the far right would get it first.

Even the chunker laying down by the n/s/f wheel?

Wrong 'un...

[julian64]

Viper said:

my old viper has one, ramming the air straight onto the filters

Edited by Viper on Monday 31st October 18:47

Amazing. If you put about three more half naked girls round that car it would be the first American car since the GT40 to look pretty.

[RenesisEvo]

pthelazyjourno said:

Thing is, they just don't suit the styling of lots of modern cars - stick them on the side of the Elise for instance, in place of the side vents, and it would look absurd.

Agreed with this - they really disrupt complex curved surfaces, which most new cars have in abundance. Plus there's only a limited set of circumstances in which a NACA duct is effective and efficient - IIRC it needs clean laminar flow (well, well-attached flow anyway) to really work better than a snorkel/periscope type intake. Which is why you'll struggle to find one on a modern F1 car.

[joe58]

There are two sat on the bonnet of the GTR.

[The Black Flash]

pthelazyjourno said:

The Black Flash said:

Nope, they're outlets, your NACA duct is an inlet, designed to let air in without disturbing the airflow over a surface.

Car still counts though - it has a couple of NACA ducts on the bottom of the flat undertray. Granted, you can't see them in that picture!

I defer to your superior

[Save Ferris]

Jankel Tempest