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Old 11-09-2012, 10:54 AM   #1 (permalink)
2000neon
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Fire blanket for engine insulation

I have been reading a bunch of the threads about engine insulation to keep the engine warm. I have seen FrankLee's cardboard and foil backed foam ones and a few of the other's that were posted.

I am wanting to do this, especially now that the freezing temps are here, but I really don't want to risk a fire underhood, so I don't want to use cardboard, and am hesitant about the foil back foam. This would be going onto my Civic, and so keeping it away from the exhaust is tough because the manifold is pretty high up, and front/ center of the motor. So I am thinking about using a fire blanket.

Something like this:
Safeli Out | Safeli Out Fire Blanket | Home Depot Canada

Unfortunately that one doesn't show the unfolded dimensions, but assuming it is big enough, would that work? I would do what I could to make sure it doesn't directly touch the exhaust manifold.

They are rated to 100% fireproof to 550*C/ 1020*F, easily hot enough, right? I'm not sure where the EGT (exhaust gas temp) can get up to, especially during prolonged lean burn. I regularly drive 55 miles on the highway, so the motor would be at full temp and in lean burn most of the time. How hot do you think it would get?

Is there a difference between short and long term heat resistance? I know these are designed to go on a fire, but I have no idea how well it would hold up to being put on something hot, and left there indefinitely.

What do you think?

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