Heat shield?

nycboy7 · 06-17-2009, 07:25 PM

I'm not sure if this is the right place to post about this but just had a quick question.... Not even sure if its called a heat shield or not, but i think its to dampen a fire just in case it happens in the engine bay. But what i'm trying to get at is, is it to dampen and put out a fire in the engine bay, or does it reduce heat. I want to take it off but will the drastic change in temperature on the hood do anything to the clear coat or paint? Sorry for the poorly worded paragraph... lol

lovecheese · 06-17-2009, 07:26 PM

It is to reduce heat being drawn into your engine by your air filter.

nycboy7 · 06-17-2009, 07:29 PM

Quote:

Originally Posted by lovecheese

It is to reduce heat being drawn into your engine by your air filter.

so would it be a bad thing if i was to remove it? As far as performance or damage or anything?

lovecheese · 06-17-2009, 07:31 PM

not a bad thing per say. The area around the heat shield would be quite a bit hotter...

IE the heat sheild under our car where our exhaust is would make the inside of our car a few degrees warmer.

Zeuceone · 06-17-2009, 07:44 PM

Quote:

Originally Posted by lovecheese

It is to reduce heat being drawn into your engine by your air filter.

Quote:

Originally Posted by lovecheese

not a bad thing per say. The area around the heat shield would be quite a bit hotter...

IE the heat sheild under our car where our exhaust is would make the inside of our car a few degrees warmer.

man you have no clue what hes talking about.

Quote:

Originally Posted by nycboy7

I'm not sure if this is the right place to post about this but just had a quick question.... Not even sure if its called a heat shield or not, but i think its to dampen a fire just in case it happens in the engine bay. But what i'm trying to get at is, is it to dampen and put out a fire in the engine bay, or does it reduce heat. I want to take it off but will the drastic change in temperature on the hood do anything to the clear coat or paint? Sorry for the poorly worded paragraph... lol

yes its to dampen a fire. why would you want to remove it for? i doubt it will have much effect on the paint.

lovecheese · 06-17-2009, 07:51 PM

Is it the firewall?

**NitrousG35** · 06-17-2009, 07:59 PM

OP, are you talking about the hood insulation attached to the underside of the hood? That is generally put there for sound dampening. Most luxury cars have it to keep things quieter. Asbestos has been used at times as a fire retardant as well as reducing the amount of heat on the hood. I have a Toyota Corolla and it never came with underhood insulation. The paint on the hood is fine. I don't see any reason to remove it. It won't hurt either, but I would just leave it as is.

The Power of Dreams · 06-17-2009, 07:59 PM

[Lovecheese], he's talking about the mat on the bottom of the hood.

PeterC. · 06-17-2009, 08:03 PM

It's called a hood liner and yeah, you can take it off. It's insulation for the engine, keep it warm in cold climate, and keep it cool in hot weather (useless IMO).

**NitrousG35** · 06-17-2009, 08:14 PM

Hoodliners are used primarily for soundproofing. As I said earlier, more expensive cars have them and they can be quite thick at times. They also can serve as a fire retardant [not so important on a fuel injected motor, but definitely important with a carburetor]. Lastly, they can provide a degree of thermal insulation, which can benefit the paint on the hood. I am not sure how effective they are at keeping an engine warm in the winter. Here in Minnesota with sub zero temps, you need more than a hoodliner to keep an engine warm. As for keeping an engine cool, I think it has just the opposite effect. Back in the day, guys used to remove it because underhood temps were higher, which was bad for the intake. More hot air ingested=less power.

lovecheese · 06-17-2009, 08:17 PM

Ah I see now.

nycboy7 · 06-17-2009, 10:00 PM

yea idk i just think it will look cleaner when opening the hood... really dont have a reason on why i want to take it off... lol

nycboy7 · 06-17-2009, 10:02 PM

thanks for the quick answers guys

06-17-2009, 07:25 PM	#1 (permalink)
nycboy7 Senior Member Join Date: Jun 2007 Age: 20 Posts: 106 iTrader: 0 / 0%	Heat shield? I'm not sure if this is the right place to post about this but just had a quick question.... Not even sure if its called a heat shield or not, but i think its to dampen a fire just in case it happens in the engine bay. But what i'm trying to get at is, is it to dampen and put out a fire in the engine bay, or does it reduce heat. I want to take it off but will the drastic change in temperature on the hood do anything to the clear coat or paint? Sorry for the poorly worded paragraph... lol

06-17-2009, 07:59 PM	#7 (permalink)
NitrousG35 Join Date: May 2007 Location: To Infiniti and beyond... Posts: 18,241 Never Again! iTrader: 3 / 100%	OP, are you talking about the hood insulation attached to the underside of the hood? That is generally put there for sound dampening. Most luxury cars have it to keep things quieter. Asbestos has been used at times as a fire retardant as well as reducing the amount of heat on the hood. I have a Toyota Corolla and it never came with underhood insulation. The paint on the hood is fine. I don't see any reason to remove it. It won't hurt either, but I would just leave it as is. __________________ Some cause happiness wherever they go: others whenever they go. -Oscar Wilde

06-17-2009, 08:14 PM	#10 (permalink)
NitrousG35 Join Date: May 2007 Location: To Infiniti and beyond... Posts: 18,241 Never Again! iTrader: 3 / 100%	Hoodliners are used primarily for soundproofing. As I said earlier, more expensive cars have them and they can be quite thick at times. They also can serve as a fire retardant [not so important on a fuel injected motor, but definitely important with a carburetor]. Lastly, they can provide a degree of thermal insulation, which can benefit the paint on the hood. I am not sure how effective they are at keeping an engine warm in the winter. Here in Minnesota with sub zero temps, you need more than a hoodliner to keep an engine warm. As for keeping an engine cool, I think it has just the opposite effect. Back in the day, guys used to remove it because underhood temps were higher, which was bad for the intake. More hot air ingested=less power. __________________ Some cause happiness wherever they go: others whenever they go. -Oscar Wilde

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06-17-2009, 07:26 PM	#2 (permalink)
lovecheese Senior Member Join Date: Apr 2008 Location: Germany Posts: 15,671 James iTrader: 8 / 100%	It is to reduce heat being drawn into your engine by your air filter.

06-17-2009, 07:31 PM	#4 (permalink)
lovecheese Senior Member Join Date: Apr 2008 Location: Germany Posts: 15,671 James iTrader: 8 / 100%	not a bad thing per say. The area around the heat shield would be quite a bit hotter... IE the heat sheild under our car where our exhaust is would make the inside of our car a few degrees warmer.

06-17-2009, 07:51 PM	#6 (permalink)
lovecheese Senior Member Join Date: Apr 2008 Location: Germany Posts: 15,671 James iTrader: 8 / 100%	Is it the firewall?

06-17-2009, 07:59 PM	#8 (permalink)
The Power of Dreams Senior Member Join Date: Oct 2008 Location: Houston, Texas Age: 28 Posts: 1,733 My Cool iTrader: 2 / 100%	[Lovecheese], he's talking about the mat on the bottom of the hood.

06-17-2009, 08:03 PM	#9 (permalink)
PeterC. Senior Member Join Date: May 2007 Location: SoCal Age: 25 Posts: 534 That's my real name! iTrader: 0 / 0%	It's called a hood liner and yeah, you can take it off. It's insulation for the engine, keep it warm in cold climate, and keep it cool in hot weather (useless IMO).

06-17-2009, 08:17 PM	#11 (permalink)
lovecheese Senior Member Join Date: Apr 2008 Location: Germany Posts: 15,671 James iTrader: 8 / 100%	Ah I see now.

06-17-2009, 10:00 PM	#12 (permalink)
nycboy7 Senior Member Join Date: Jun 2007 Age: 20 Posts: 106 iTrader: 0 / 0%	yea idk i just think it will look cleaner when opening the hood... really dont have a reason on why i want to take it off... lol

06-17-2009, 10:02 PM	#13 (permalink)
nycboy7 Senior Member Join Date: Jun 2007 Age: 20 Posts: 106 iTrader: 0 / 0%	thanks for the quick answers guys