I'm looking for some engine side firewall advise. There seems to be lots of information about insulating the inside of the firewall, but not much on the outside. My engine is out and now is the time to replace the factory fiberglass padding that was glued to the firewall on the engine side. I don’t want to go with the polished aluminum covers that are for sale on most Pantera parts sites and I would like to keep costs as low as possible. Couple of questions.
1. Do I need anything on the engine side of the firewall, or can I get away with painting the firewall and putting 2 layers of insulation on the inside(1" thick fiberglass mat and a dynamat equivalent)?
2. If I do need some sort of covering, Does anyone have recommendations. So far, I am looking at:
Thermo Tec Aluminized heat barrier
Thermo Tec Thermoguard FR
or
Bonded Logic Ultratouch double foil
My biggest concern with these products is moisture getting behind the mat and rusting the firewall, and how to attach them so they look presentable.
What are your thoughts?
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