[Darkness]

I really like Turbosocks/Btjetman hood vents but they aren’t very functional (in terms of removing heat from engine bay), because they are blocked by a structural rib on the hood. I was thinking if there is any way to direct more air from the engine bay to the two small openings at the side of the vents. I decided to model my idea to do this in a CAD software. The idea is the plastic air guide would allow more air to flow out by having a large opening that direct the air to the two small openings on the vent. This piece would be bolted inside the hood onto the hood rib structure using the two bolt holes that are no longer used by Turbosocks/Btjetman hood vents. See images below

As far as manufacturing this plastic air guide, the simplest method would be using a mold. Making the mold for this can be expensive. If you are planning to make hundreds of this part, then you can pay for the mold, and recoup the mold cost in the price of the part. The other method is Stereolithography (SLA). This can also be expensive for one off part. Another method is 3D printing, but the part size might be an issue.

 

[jcroscigno]

Do it. Package it. Want it.

 

[Contain]

I like it. Think there is anyway to include some sort of rain channel on the bottom leading to a run off tube?

 

[Darkness]

I like it. Think there is anyway to include some sort of rain channel on the bottom leading to a run off tube?

I was going to model a water reservoir at the bottom (and back of it) with a barb to which a small hose can be attached and routed edge of the hood.
The water would run off using the channel on the fender or by the wiper area. Just got bit lazy and stop working on it

 

[Memphis]

Good thinking.

 

[lagonwagon]

I think your idea is great, but to say that they aren't functional is misleading. I can feel quite a bit of heat escaping when sitting still and I know that when the engine compartment is filled with positive pressure while driving and the vacuum created by air flowing over them, that heat is escaping aswell.
I know that your idea is trying to improve on a good design but just wanted to make sure that the proper credit was given to Bruce's work.

 

[swordfish]

Pricing is going to play a huge roll in the viability of this. Awesome idea, but any cost beyond $35 is going to be a non-starter.

That said, really like the design!


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[Turbosocks]

the design seems cool but I don't know how much it would actually add to the functionality.

HOWEVER, It would probably double the cost of the vents to get something like that off the ground.

I don't see Bruce/myself selling enough of these to make something like that worth it from a standpoint of re-couping funds.

The best idea for truly functional hood venting would be larger vents. The engine bay only really heats up excessively when under idle conditions.

The vent size itself is what would be inhibiting the amount of heat that can be rid out of the engine bay when stopped because they are so small.

When the car is moving, there is airflow all around the engine bay from the front/under the car. I'm no airflow expert but I would think that adding something like that would be make it worse than make things better. The front of the engine is the cooler part of the engine. These would be funnelled to get more air from the front of the engine out of the hood.

The rear of the engine is the problem with heat. (Turbo, exhaust manifold)

Just my .02.


What would be perhaps a better idea is actually ADDING some type of scoop between the vents with a similar type of molded ducting to force fresh air right around the intake side of the turbo to drop those temps down which would also drop the under-hood temperatures at the same time.

 

[Darkness]

I think your idea is great, but to say that they aren't functional is misleading. I can feel quite a bit of heat escaping when sitting still and I know that when the engine compartment is filled with positive pressure while driving and the vacuum created by air flowing over them, that heat is escaping aswell.
I know that your idea is trying to improve on a good design but just wanted to make sure that the proper credit was given to Bruce's work.

Not trying to steal Bruce's thunder here, just thought that this idea would be a great way to get more air out of those two small openings.
The work Bruce is doing with these vents is both great and awesome. :smile:

 

[Darkness]

the design seems cool but I don't know how much it would actually add to the functionality.

HOWEVER, It would probably double the cost of the vents to get something like that off the ground.

I don't see Bruce/myself selling enough of these to make something like that worth it from a standpoint of re-couping funds.

The best idea for truly functional hood venting would be larger vents. The engine bay only really heats up excessively when under idle conditions.

The vent size itself is what would be inhibiting the amount of heat that can be rid out of the engine bay when stopped because they are so small.

When the car is moving, there is airflow all around the engine bay from the front/under the car. I'm no airflow expert but I would think that adding something like that would be make it worse than make things better. The front of the engine is the cooler part of the engine. These would be funnelled to get more air from the front of the engine out of the hood.

The rear of the engine is the problem with heat. (Turbo, exhaust manifold)

Just my .02.


What would be perhaps a better idea is actually ADDING some type of scoop between the vents with a similar type of molded ducting to force fresh air right around the intake side of the turbo to drop those temps down which would also drop the under-hood temperatures at the same time.

Socks, I agree with your assessment of costing, vent size and heat location.

 

[Turbosocks]

Like I said, I'm no engineer so I may be looking at the idea wrong!

 

[btjetman]

No trying to steal Bruce's thunder here, just thought that this idea would be a great way to get more air out of those two small openings.
The work Bruce is doing with these vents is both great and awesome. :smile:

I certainly appreciate you adding to the vents. Hell, that's what I come to this forum for, get ideas and learn. If you can do something like that, keep it reasonably priced, and not loose any money, I'd be the first one to buy a set. I will add that in motion the vents do a pretty good job of moving heat out from under the hood. My research comes from my wife complaining about all the hot air now coming from the interior vents when we don't have the A/C on. The outside intake for the ventilation system sits in the cowl area behind the hood vents and that is the only thing I can contribute the hotter air from. But, who knows.

Love your CAD skills as well.

 

[nvyseal]

Dont show -X- this, or he'll be putting little fans on them

 

[swordfish]

Dont show -X- this, or he'll be putting little fans on them

And it looks almost to be the perfect size too!


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[swordfish]

Actually, I have a better idea than using fans to add to this proposed solution...

Adhering aluminum blocks to the intake and turbo housing and using heat pipes to route them to a fin arrangement allowing for a direct heat extraction route?

 

[swordfish]

Foncused?

Yes, but i'm out of cold beers so I'll probably start to mellow out soon.

 

[btjetman]

Yes, but i'm out of cold beers so I'll probably start to mellow out soon.

I have plenty of Percocet and Ativan.


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[swordfish]

I have some Woodford Reserve. It will have to do.

 

[btjetman]

I have some Woodford Reserve. It will have to do.

A very fine bourbon indeed!!!


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[agentw0]

Here we go with the rain issue again....

I think the Vents work fine as is. Heat Rises, so that little structural hood piece really has a negligible effect on blocking off the dissipation. I think something like what is shown in the original post would work better with a functional ram-air hood. Due to the shape of the Factory vents and their position it looks to me like all they will work as is a vent. Adding more underneath there is nothing there to direct the air out or should I say not enough air coming through the engine bay to push the air out.