Hood Venting

[Preston951]

This is a sweet mod! The GT500 vent looks awesome on our 05-09 hoods.

 

[marksti]

That gt500 vents nice

Also if you have the time/tools you can cut Saleen style vents/slots on the rear of the hood.

 

[teal1993cobra]

Tiger Racing

I have the tiger racing carbon fiber heat extractor hood. It seems to work great. The temps get above 100 in oklahoma and don't recall ever seeing over about 195 coolant temp in my car.

By the way, it's for sale. I have a google doc link here to view pictures: https://docs.google.com/Doc?docid=0AYllJaRiDkh0ZGR6Y2hkem1fMGM3OGduZmR4&hl=en

 

[DusterRT]

I have the tiger racing carbon fiber heat extractor hood. It seems to work great. The temps get above 100 in oklahoma and don't recall ever seeing over about 195 coolant temp in my car.

By the way, it's for sale. I have a google doc link here to view pictures: https://docs.google.com/Doc?docid=0AYllJaRiDkh0ZGR6Y2hkem1fMGM3OGduZmR4&hl=en

How much do you want for it?

 

[chad05gt]

'200mph' hood... I need one...

 

[pcdrj]

Anyone running this?

http://www.ilovebodykits.com/product/6893/Seibon_05_07_Ford_Mustang_SSII_Carbon_Fiber_Hood.html

 

[053vstang]

Ive been debating about taking a dremel to the cowl trim (or removing it all together) to let hot air escape from the engine compartment. The idea is to get a cowl hood effect.

Anyone tried doing this???

 

[Wicked GT]

053, I took a dremel and cutting disk to my Steeda hood and made it a dual sided cowl. The hood only came with one crappy hole on the driver side so I drew out a larger opening and then mirror'd it on the passenger side. Is it perfect... no, but looks pretty good and works great.

 

[ixtlan]

Most structure is for crash resistance.
I only had to take a very small piece out for my vents.
There are many styles of louvered vents to choose from.

 

[Cookiemonster]

I can dig it!! just curious as to why you chose that location for the vents?

 

[1SonicGT]

That gt500 vents nice

Also if you have the time/tools you can cut Saleen style vents/slots on the rear of the hood.

Care to elaborate a bit more about this? I love the Saleen heat extractor hood. I also love the GT500 hood for our year cars, but that requires a gt500 front end. HMMMM mods which one next

 

[Ch4r1ie]

Super Louver Hood by Tiger Racing FTMFW...



http://www.s197forum.com/forum/showthread.php?t=51070

I recently bought the CF version.

As it arrived...

Being fitted this week...

This is a quality bit of kit and if it's good enough for Ford Racing it's certainly good enough for me! Plus, Paul and Carol are great people to deal with.

On GR40Freak's car...

 

[ixtlan]

I can dig it!! just curious as to why you chose that location for the vents?

Mine extend below the hood level (a box) and through the insulation.
It was the best location to not contact the items underneath, and to pull heat from the engine bay.
The hood has the least curvature in that area also.
And I liked the look in the location also.

 

[Sleeper_08]

Mine extend below the hood level (a box) and through the insulation.
It was the best location to not contact the items underneath, and to pull heat from the engine bay.
The hood has the least curvature in that area also.
And I liked the look in the location also.

Are you worried about rain or snow going through the vents?

Can you provide more details on where you got them?

I'm running an SC and am concerned about underhood temps in the summer on the street in stop and go driving.

On the track there is is enough air flow that everything runs cool.

 

[ixtlan]

They are Engine Bay louver vents for Marine.
There are many manufactures.
Mine are Attwood seven louver.

http://www.attwoodmarine.com/store/category/ventilation/vents

They are made of ABS and have a collector box underneath.
They are also Bolt On.
Do a search for Marine Louvered Vents and you can find all kinds of different types and makers.
And a lot better priced then Auto specific types.
Snow and water do not seem to be a problem.
Snow sits on top of them and the rain just drops through like any louver to the ground.
With the engine running and low-speed fan running you can hold your hand a good seven inches above them and feel the heat forced air out.
I did a test to see how much the bay cools.
It is here:
http://www.s197forum.com/forum/showthread.php?t=41507&highlight=Painted+Stripes+Vents

Scroll to post 11.
I put them on for pressure relief but they do suck heat out pretty damn good.

 

[fdjizm]

Wouldn't a large slot at the back of the hood (near the windshield) with rearward facing vents suck out the hot air nicely? mimicking a cowl effect without the cowl.

ixtlan that looks like it works well too.

 

[ixtlan]

Wouldn't a large slot at the back of the hood (near the windshield) with rearward facing vents suck out the hot air nicely? mimicking a cowl effect without the cowl.

ixtlan that looks like it works well too.

I would imagine it might work.
But here is a bit of conjecture.
The airflow over the hood and turning up at the windshield may cause a dead space right at the wiper well there.
The long "run" over the hood would cause the airflow to be smoothed out and tend to keep going in its pattern.
Much like a wing that is smooth.
I have noticed that if I get a leaf in that area it stays there.
A Cowl hood is higher than the well, and that airflow is not the same.

But if anyone can find one of those smoke flow videos over a Stang that shows airflow we may be able to tell better.

Probably full of shit with this and over-thinking the whole thing.

But it's fun to workout the noggin now and then.

 

[DusterRT]

Wouldn't a large slot at the back of the hood (near the windshield) with rearward facing vents suck out the hot air nicely? mimicking a cowl effect without the cowl.

No. The base of the windshield is a high pressure zone, it would blow air in. Back in the day, cowl induction was used as a cold air intake, not as a vent; the air cleaner was sealed up to the bottom of the hood which tunneled air forward from the rear.

 

[Sleeper_08]

They are Engine Bay louver vents for Marine.
There are many manufactures.
Mine are Attwood seven louver.

http://www.attwoodmarine.com/store/category/ventilation/vents

They are made of ABS and have a collector box underneath.
They are also Bolt On.
Do a search for Marine Louvered Vents and you can find all kinds of different types and makers.
And a lot better priced then Auto specific types.
Snow and water do not seem to be a problem.
Snow sits on top of them and the rain just drops through like any louver to the ground.
With the engine running and low-speed fan running you can hold your hand a good seven inches above them and feel the heat forced air out.
I did a test to see how much the bay cools.
It is here:
http://www.s197forum.com/forum/showthread.php?t=41507&highlight=Painted+Stripes+Vents

Scroll to post 11.
I put them on for pressure relief but they do suck heat out pretty damn good.

Thanks for the info - I'll do some research.

 

[908ssp]

No. The base of the windshield is a high pressure zone, it would blow air in. Back in the day, cowl induction was used as a cold air intake, not as a vent; the air cleaner was sealed up to the bottom of the hood which tunneled air forward from the rear.

Exactly right. It is cowl induction not cowl extraction. Sitting still it would vent but once moving the air would be forced in at the base of the windshield causing more front end lift and at the very least not allowing hot air to exit.