Automotive Air Conditioning Information Forum

I just installed a Vintage AC system designed for my car. I added a 10" electric fan (comes on when compressor turns on) to support the mechanical fan (also upgraded to 6 blade steel fan)

These cars run very hot and I want to add some insulation to the floor. Under the seat there is no rug or insulation and the mufflers are directly under the seat area.

I've added muffler shield/insulation from DEI and I'm in the process of adding insulation under the seat and rug. I'm also trying to seal all holes in floor and firewall as best I can

Does anyone have any tips to add insulation and maybe some exhaust pipe heat sheilds?

You are on the right track.Do an internet search for ceramic fiber insulation for the exhaust. It can be formed as needed with a bit of effort. Use metal zip ties to hold in place. Or screw type hose clamps. You can get larger size hose clamps on line. We did this on the muffler for a 1947 Studebaker p/u and it made quite a difference. I am not familiar with the DEI name or product.
Be sure you are not getting reheating from your heater coil…sometimes you have to valve off the heater hose with a decent brass type plumbing valve.
Be sure to insulate the firewall, you will get a lot of heat from there.
Be certain to insulate the low side line under the hood and that same line as it leaves the evaporator under the dash