Thanks Jordan!
C&R makes the gold and silver foil that HRP sells. The gold is good but the Silver is a lot better for heat reflection. It is cheaper, a little more weight, but thicker and the adhesive used is better as well (less "stiff" and adheres to contours much better). I have had the firewall lined on the outside and inside with gold foil for two years, but there is only so much it will reflect. I honestly think it is better for hoods, airboxes etc, that can't really absorb much heat. I got some silver to cover the firewall "more better"(I've always wanted to say that)
Here are a couple of heatshield pics from a few different cars.
S13 WRC Impreza. I've seen that bronze colored blanket in person and it is about 1/4 inch thick. Not sure what is inside, but probably some aerospace fiberglass type insulation. Rallycars/front engine turbo cars probably have the highest concentrated heat area close to the cockpit which require almost excessive heatshielding. In a turbo LMP (Lola/AER, Audi, Peugeot) I can only assume that the heat will most likely move rearward at speed with a bit of proper ducting. They have one area to block for driver comfort and the rest is component shielding. Maybe an engineer type could chime in on this?
80's Lola Indycar with Buick V6 Turbo motor
Skoda Octavia WRC Evo III (Notice the Pankl Titanium propshaft!!) They really do a nice job insulating the entire cockpit.
