News, Supercars

Koenigsegg’s clever catalytic converter frees 300 HP!

Koenigsegg_Agera_RS

Koenigsegg may be a small Swedish company, but the technology implemented into their cars is nothing short of impressive.

In a recent blog post detailing the Koenigsegg Agera RS’s build, the company mentioned that their patented catalytic converter is able to free the engine of up to 300 horsepower.

Koenigsegg_Agera_RS_Exhaust

Well, according to them, they run a “pre-cat” on the wastegate that allows them to block off the main passage out of the turbo to force all the start-up exhaust emissions through the wastegate. As a result, there won’t be the issue of the turbo cooling off the exhaust during cold starts.

With the “pre-cat” on the wastegate, Koenigsegg engineers can fit a smaller catalytic converter that heats up quicker. That also means that the turbo can heat up faster, as its not in the way of the pre-cat. Once the main cat is properly heated, a valve behind the turbo opens up and allows exhaust to exit straight to the main cat.

This ingenious solution means that Koenigsegg engineers are not bound by a small catalytic converter that blocks the exhaust at all times, freeing up to 300 hp in the process.

Via: Koenigsegg