Getting engine bay firewall insulation right
If you've ever noticed your cabin getting uncomfortably warm during a long drive, it might be time to check your engine bay firewall insulation. It's one of those parts of a car that nobody really thinks about until it stops working, or until you're building a project car and realize the manufacturer didn't give you much to work with in the first place. That thin sheet of material sits right between you and a massive heat source, and when it's doing its job, you don't even know it's there. When it fails, you'll definitely feel it through the floorboards. ...