New 4" Cowl Hood from Cervinis!

[LethalPerformance]

The new 4" cowl hood from Cervinis is now available for the 2024+ Mustangs. That includes ecoboost, GT and the dark horse. Cervinis sent the first production hood down for us to install on my grabber blue metallic Whipple powered manual GT. The fit and finish on it is perfect! They also include all of the hardware needed for the installation so you still retain all of your factory window washers and hood struts.

These are now exclusively available here at Lethal Performance and are on sale!

https://www.lethalperformance.com/cervinis-4-cowl-hood-2024-mustang-gt-dark-horse-1267.html

Here's a link to all of our Black Friday sales where more are being added each day.
https://www.lethalperformance.com/info/blackfriday

Also don't forget about our TeamLethal F150 giveaway where we're giving away a fully built 2022 F150 RCSB along with $15,000 in cash.
https://www.lethalperformance.com/info/blackfriday#f150

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[Mr Hyde]

Love seeing new products and for those who are cowl fans this is a huge win but this removes the grille that is functional on the car hoping they have it well vented on the rear of the cowl. Would like to see something more aggressive but less blobfish looking. Just a personal preference here.

 

[JimC]

Love seeing new products and for those who are cowl fans this is a huge win but this removes the grille that is functional on the car hoping they have it well vented on the rear of the cowl. Would like to see something more aggressive but less blobfish looking. Just a personal preference here.

The cowl doesn't vent out, it draws in to the engine bay.

 

[broncoboy22]

I wonder if you could clear a S/C + STB under here

 

[Mr Hyde]

The cowl doesn't vent out, it draws in to the engine bay.

I was referring to the end that faces the winshield will need to have vents to release underhood pressure or you will generate lift. The engine bay is largely enclosed with underpanning. Its not like the older generation open bay cars.

 

[JimC]

I was referring to the end that faces the winshield will need to have vents to release underhood pressure or you will generate lift.

Except that end doesn't vent out is what I was saying. It draws air into the engine compartment. It is a low pressure area at the bottom of the windshield so it doesn't release the air like you are thinking, the air flow the opposite direction.

In the 60's Chevy had the "cowl induction" system on some of their muscle cars to take advantage of that low pressure site and draw air into the carburetor

 

[Wiley Marmot]

The only way it could be any better is if it had a fake 671 blower with a bug catcher further blocking forward vision stuck on it.

OK...............................maybe not.

 

[Mr Hyde]

Except that end doesn't vent out is what I was saying. It draws air into the engine compartment. It is a low pressure area at the bottom of the windshield so it doesn't release the air like you are thinking, the air flow the opposite direction.

In the 60's Chevy had the "cowl induction" system on some of their muscle cars to take advantage of that low pressure site and draw air into the carburetor

Which you dont want on a newer car it has the opposite effect due to the sealed engine bay and high pressure airflow from the grille its not a 60's era muscle car the aero is completely different. It stalls the airflow turning the hood into a parafoil.

 

[JimC]

You have me confused Mr. Hyde. (or did Dr. Jekyl write the comment?)

First you said you wanted the vent in the back to "vent the air out" to which I responded that isn't what the vent on the cowl hood will do when driving, it will draw air IN to the engine bay, not vent heat out. Now you say "which is exactly what you don't want".

hoping they have it well vented on the rear of the cowl.

So why are you arguing that you want the vents at the back of the cowl hood then? As I said, they will draw air into the engine bay when driving, not draw heat out of the engine bay.

Which you dont want on a newer car it has the opposite effect due to the sealed engine bay and high pressure airflow from the grille

So do you want the rear of the cowl vented or are you saying you don't want it vented?

And that is the reason that the cowl is sealed on our cars on the stock hood by the way. To prevent drawing the air back into the engine bay.

 

[Mr Hyde]

The factory vent is removed from the cervini design. Which is what exhausts the air up and over the hood. No vents or two small such as on the s550 causes lift as the air can not escape. The front grilles on the car are more then sufficient to draw in air. No vents on the hood and adding more air will cause pressure to build under the hood. Causing lift or float. You do not want the air going under the car as it defeats all the work ford did to increase downforce. Since there are no vents on the back raised area to relieve said pressure on an ornamental hood.

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