Intercooling ducting ideas

[Adrian_D 520]

I've got an oil cooler behind my bumper and with this heat I noticed that if I run it hard the temperatures won't drop at highway speeds, which means I need more airflow through it. And since it's right next to the intercooler, I bet that also heats up like hell. Haven't measured IAT's so far since I don't have a sensor. Not looking for power gains, just for cooling gains in preparation for adding more power

This is the current setup:

And stock:

About 1/3 of the intercooler is blocked off by the oil cooler.

The intercooler is exactly as big as the square opening (and folded). The plastic is actually some sort of duct, used to seal off the intercooler from the crossmember and to scoop some air from the left side. Air exiting the oil cooler goes through that small scoop.

One idea is to increase the size of the holes, similar to this:

The other is to cut 2 square holes in the bumper (on each side of the license plate), cut bigger holes in the crossmember and build some sort of duct from the holes in the bumper to the intercooler and to the oil cooler.

Any reason why this wouldn't work at highway speeds from some sort of aerodynamic reason ? The angle from the crossmember opening to the bumper hole is sharp and that is the only problem I see.

Turbo RX7's have a scoop / duct for the intercooler, the actual opening of the scoop is quite small compared to the surface of the intercooler but the thing works well !

[Adrian_D 520]

double poast..

[Tirefryr 1,742]

Can you weld?

[Adrian_D 520]

I love welding

Late edit: I use a big MIG if it makes any difference...

[Tirefryr 1,742]

I'd just cut through the bumper, weld in some mesh and be done. You could build the dcting if you want, but I'd assume the holes to be more than enough.

[Adrian_D 520]

Oh, definitely welding in mesh, I don't want something poking through my oil cooler

[KyleBrown 121]

You could also try what they do on F bodies and duct from the bottom.

They have a small pick up on the bottom behind the bumper to cool all the coolers. They work great!

[Adrian_D 520]

I wonder if F-bodies have the radiators mounted vertically or slanted...

The black duct I posted is similar to what you mention, it picks up air from in front of the radiator and directs it to the intercooler.

It's a pretty short distance from the bumper surface to the cooler to be able to get very creative with ducting.

[Tirefryr 1,742]

They are angled. The f-bodies pick up air from under the bumper. They have no grill.

[Adrian_D 520]

As I expected

Anyway, holes + some simple sheetmetal should be a quick mod.