what does the liner do? it makes the engine compartment look nice! it might protect the paint job from radiant heat a little. but i think it just holds in engine heat longer. by removing it, might the engine dissipate heat better? what do you guys think?

i was thinking about this as well, i think that it would get rid of heat better but what would we do when it snows,then the engine is so cold

I'd think the main purpose is protecting the hood paint from engine comp heat.

in the days of muscle cars,they did not come,at least most of em, with liners. my legend ran 4 years without one,i took it off, with no prob to paint. and it was a great place for all my performance stickers from parts i bought. i ran my legend in queens,ny, not as cold as utica,but pretty cold,she allways started right up! and took no longer to warm up ,than with a liner. i think im going to take it off,give it a good cleaning and store it away for awhile. and keep an eye on the paint. here in vegas anything one can do to improve cooling is a plus! it gets so dang hot ! having a all white car helps too!

youre right! i dont think that it will affect the paint..so im taking it off im pretty sure it will help some....

I guess it doesn't make much sense to me. I think the "insulator" does just that, it keeps heat off the underside surface of the hood. So the heat that is rising from the engine moves off to the sides of the hood and escapes around the edges. Guess I don't see a drawback to having it in place. I really doubt that removing it will reduce temps. jmho of course.

ALTHOUGH, I doubt there would be any short term effects on the hood paint w/o the insulator. Long term "could" be a different story, so I'll leave mine on. It also likely serves a primary purpose of sound deadening, so that's a matter of personal preference.

Short answer: sound and heat.

Long answer. Differnt cars differ in the "need' for this. Chrysler had a problem with the 2.2 L turbo engines, well the turbos anyway, cooking off the paint. They responded by installing a flush louvered hood vent over teh turbo area and painting the hood with epoxy.

I suspect if there was a heat problem the thing to do would be add a vent or enlarge the grille. And if there was a heat problem the plastic engine cover would die first.

Albertj

They are considered a fire blanket. If you notice what is holding it on are several plastic pushpins. If a fire starts under the hood, they melt causing the liner to drop and (if all goes well) suffocate the fire. Molded to the aluminum hood is a plastic reinforcing "pan" that shields the outside paint from the heat.

call me crazy but after my sweet looking engine swap im taking my liner off and im going to put some mirrors in place. just for added show look

Nobody ever said it was a good design but that's what it's there for. I have run the Riv without it for a while yet and have not had a problem. If you want to keep the engine bay a little cooler, remove the top seal from the firewall to the hood.

I could swear mine was plastic but I guess I can't tell because of the paint over it. I guess I'll find out soon enough when I cut it for IC install (if needed)! I've been know to be wrong on several occasions though! lots and lots of occasions...