Quote:
Originally Posted by ctgottapee
Hood Insulation = Not practical, nor provides any meaningful results in and of itself, but its inexpensive, can provide sound insulation, and one must be careful of additions to the engine bay environment.
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Keep in mind that most folks on here already have their grilles blocked, which means less air going in. And less heat being blown out.
Sure, there are still a great many leaks - and you actually need them to get rid of the heat from the engine.
Simply blocking part of those leaks already seems to help warm up times ...