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RedDevil · 10-23-2013, 04:15 PM

The biggest benefit of insulating the engine is not faster warm-up time but retaining the heat until the next start. You get a head start, so to say.
My engine bay is pretty much closed off as standard, and my full grill block adds to that. The engine heats the air around it, but that can hardly escape.
Just blocking the seams of the hood lid woud do a lot. Mine have OEM rubber sealing.

So when I restart my car within 4 hours or so the engine is still warm. Even after a full day at work there is some residual warmth, maybe 5 to 10 degrees above ambient.

No worries about overheating the engine; the coolant and radiator keep that in check.

10-23-2013, 04:15 PM	#7 (permalink)
RedDevil Master EcoWalker Join Date: Dec 2012 Location: Nieuwegein, the Netherlands Posts: 3,999 Red Devil - '11 Honda Insight Elegance Team Honda 90 day: 54.08 mpg (US) Thanks: 1,714 Thanked 2,247 Times in 1,455 Posts	The biggest benefit of insulating the engine is not faster warm-up time but retaining the heat until the next start. You get a head start, so to say. My engine bay is pretty much closed off as standard, and my full grill block adds to that. The engine heats the air around it, but that can hardly escape. Just blocking the seams of the hood lid woud do a lot. Mine have OEM rubber sealing. So when I restart my car within 4 hours or so the engine is still warm. Even after a full day at work there is some residual warmth, maybe 5 to 10 degrees above ambient. No worries about overheating the engine; the coolant and radiator keep that in check. __________________ 2011 Honda Insight + HID, LEDs, tiny PV panel, extra brake pad return springs, neutral wheel alignment, 44/42 PSI (air), PHEV light (inop), tightened wheel nut. lifetime FE over 0.2 Gigameter or 0.13 Megamile. For confirmation go to people just like you. For education go to people unlike yourself.