[cipsony]

Carbon fiber radiators undertray:

• It helps rerouting the air that passes the radiators towards the brakes.
• It has front diffusers that also helps rerouting the air + they add some reduced downforce on the front (like on the porsche 918)
• Overall it helps with the downforce allowing less air to go under the car.
• It is very light: 940g vs 2500g OEM
• Dimension: 107 X 59 cm
• PRICE: 460 Euro + shipping (around 25 Euro anywhere)

 

[cipsony]

The discounts for buying more parts from me apply to this also:
First part = full price
Second part = discounted with 50 Euro (you can buy it at any time and not necessarily together with the first part)
Third part = discounted with 75 Euro (you can buy it at any time and not necessarily together with any of the other 2 parts)

 

[cipsony]

And some overall information about my parts:

 

[cipsony]

 

[AAaF]

I was wondering where the hot air from radiator is evacuated? Unless you go for a vented hood like Laptime:

 

[cipsony]

I was wondering where the hot air from radiator is evacuated? Unless you go for a vented hood like Laptime:
View attachment 105723

The air is routed to the brakes: I drilled 2 holes in the radiators enclosure on the sides --> Like many are doing with the brake ducts.
The hood is a good solution but it is quite expensive and the benefits doesn't justify it for me.

 

[AAaF]

Fair, I assume you have tested that it does not cause a negative impact.

 

[Andy Abrantes]

Very interesting parts...

 

[cipsony]

Below are the centralized CFD simulations results that also include the Radiators under-tray:
More details can be found on the forum: Alfa Romeo 4c - aerodynamics

 

[Alfanut]

The air is routed to the brakes: I drilled 2 holes in the radiators enclosure on the sides --> Like many are doing with the brake ducts.
The hood is a good solution but it is quite expensive and the benefits doesn't justify it for me.

Any photos of this?

 

[cipsony]

Below is the position of the holes (from a different car) --> But I didn't add the brake ducts.

In the next picture you can see the holes --> The picture was made from the wheel arch behind the wheel. Installation and drilling the hole is a very simple operation.