AlexCisneros

Question is... Where does the air that passes the radiator go? Down and out? or up and out?

As someone mentioned... Putting the vents too close to the windshield may cause a type of cowl induction and bring air in. I have no idea what that would do at speed, but my guess would be create lift as I can only see it traveling in one direction...down. Might that also affect how air traveling through the radiator flows?

At low speed or stopped, again I'm no expert, wouldn't hot air rise one way or another? If at speed, wouldn't the air entering through the bottom of the car and through the radiator/oil coolers/etc more easily continue to travel up and out vents placed at the front?

I wonder if rotarygod knows anything about aerodynamics :D

Xyntax

I think the vents should not be placed anywhere else than the sides. Our engine cover was also made to direct air towards the sides into the fender openings where the strakes attach. This is why someone here pointed out that the cover helps heat desipation. By making a vented hood with the vents on the center, you'd have to remove the enine cover to make it functional. Other than that, it's all just aesthetic.

AlexCisneros' design would be more functional, but I would make the vents a bit smaller and further back.

AlexCisneros

I don't use my engine cover

RaceBannon

Doc- could you email me and tell me where you got that picture? I want that hood.

AlexCisneros

from me...

Chuck at:

http://www.rotaryextreme.com

Is going to make them. Contact him

mikeb

any idea on price^^

AlexCisneros

not yet...

...Ask Chuck

Landon_Starr

Last time I chatted with Chuck about the vented hood, he told me he was only going to produce a hood when he has 20 committed pre-paid buyers......have things changed? That was on June 20th.....???

--Landon

customCFshop

we had an RX-8 come by the shop today and we studied his car pretty thoroughly and here's what we came up with.

we could very easily modify a top secret supra hood in the shop and place the vents along the rotary symbol. i know someone said it might suck in air more than vent it out, but if that's the case, you'll still have more air moving through the engine bay and it'll continue to vent out through the fender grilles.

we're determined to get a vented hood built for you guys!

mikeb

DO IT

Landon_Starr

Less typing. More molding.

Any pics for reference on the Top Secret hood?

--Landon

customCFshop

we make this in carbon:

http://store3.yimg.com/I/ntnsracing_1785_29490707

(this is not an advertisement. we have no affiliation to this vendor.)

magixpuma

just run with no hood thats how u get awesome at being cool

customCFshop

is that a yes on the top secret hood?

Omicron

Dunno how functional it would be as it is now... the front two sets of vents on either side would be directly over the air intake box and battery cover. Maybe just with the rearmost two vents, plus maybe a couple more further back?

customCFshop

5 vents on both sides? that's not a little overkill? we can put the vents wherever you guys want them.

Nemesis8

iTrader: (3)

I have not been able to use my engine cover since installing the SR Motorsports intake. Like AlexCisneros, is there an advantage to the cover? Or better yet, will there be a disadvantage for not using it??

AlexCisneros

As far as I know... The cover is purely aesthetic

My guess is that the car manufacturers want you to open the hood and say ooooh, aaaaah

Not... Hey, where's the rest of the engine?!? It is a 1.3L

Omicron

No, no, I mean 3 vents on each side, but start them further back.

D MENAC 7

How about this? The first pic is of where the vents would go. The front middle would be wide and narrow and act as a scoop, the three per side would vent towards the rear and to the side.

D MENAC 7

A clean copy without the arrows.

Omicron

That's more along the lines of what I was thinking of!

D MENAC 7

Simple, wide intake vent which would vent air across the top of the engine and out through the side vents to which would cause air to vent upwards and to the sides pulling more air out of the engine compartment from all areas, including that which is beneath the engine and that wich has passed through the radiator. This front vent would have to be forward enough to force a draft accross the major components. This should have a screening on the rear side to keep debris from flying in. It desn't have to be raised above the present surface since there is already a curvature at the front of the hood. The rear side vents are what would create the out draft. Presently, the air passes out of the side vents through a very narrow shaft. My suspicion is that most of it just passes out the bottom of the car. I don't think this is very efficient and this is why the engine area gets rather hot.

XeRo

i like your concept D...although i think even though someone stated it being ricey..the "viperish" center vent would function more here than a linear type vent for the induction..you want to introduce as much air "scooped" into the compartment then channeled across the internal components to the side vents for extraction...with the viper style your channeling the air flow into a scoop which will disperse the air in a more "usable" fashion, with a linear 'slit' you won't have as much direction on the incoming air and it won't be as 'forceful' as needed to actually provide a "cooling" affect...

i;m sure you grasp what I'm saying D, but for those that think this type of scoop is ricey I can provide a drawing later on that will put side by side comparisons of the two different types of venting for induction of air in to the engine bay...the viper style would greatly benefit over a linear slit..

D MENAC 7

In a sense that is what that would be, as it would be scooping air into the engine compartment not just a line across the hood, an indentation like the viper's but not as narrow. The rear side of the "scoop" would be higher than the front side as there is a curvature of the hood at that point. Air would not simply draft accross the top but be caught as in the scoop and channelled through the engine bay then out the top side vents.