Air intake heat shield with golden foil

Once again a quick job just after work.

The problem is that the air intake ducts go straight on top of the turbo and catalytic converter under the hood. This results in an unstable idling at the red light when the weather is hot (>=30°C ambient temperature). While the Caterham 160/165 is prone to stall in those conditions, the 170 is ok-ish with an engine that oscillates between 600 and 1000 RPM unhappily.

All I can say is that adding 32 grams of that adhedive glass fiber coated with a golden foil really improves the idle in those conditions. It's now rock-steady at 1000 RPM.

I paid around 15€ for a roll of 5cm x 10 meters.

Gold is really good at reflecting infrared radiation, that's why it's used in survival blankets.