Heat Shields

[SaiyanFury]

OK to all those guys here who remove their heat shields from the exhaust and turbo sides of things, let me give you a piece of advice: DO NOT REMOVE HEAT SHIELDS just for looks! I did this and I payed dearly for it. I realize they aren't attractive under the hood, and detract from the representation value of your underhood ops, but those heat shields, AND READ THIS, are there for a reason! If you don't have them, you stand to ruin various underhood things such as your factory fans. And don't forget, the alternator. I am not speaking from assumptions. I melted my factory main fan by my lack of heat shields. Do yourselves a favour and invest in proper shields and save yourselves many headaches!

 

[Wherestheboost]

I figured most people just painted them with high temp stuff, rather then removal. I would assume all heat shields on an exhaust system serve some type of purpose? It's just annoying when shields get loose and rattle..very very embarassing.

 

[andymoraitis]

I bought my car without an upper and have been forced to run without both on my new setup. I agree that these are actually useful pieces to have since my underhood temps are much higher. I haven't melted anything since I don't run A/C, but I still plan on seeing if something can be fabbed to work.

Good point,

Andy

 

[yunior]

If looks is what you guys are going for there is a link here to a company that makes heat shielsd for our cars look at the picture of mine in my profile I like it it covers the ugly manifold and adds looks to the engine bay.

 

[v2ner]

Almost everything on our cars has a useful purpose. Before modding anything, you should always consider the consequences and purpose.

 

[JDNSBR]

Yes, heat shields are there for a reason gentlemen. If you don't have one I highly suggest heat wrap. Not only does it prevent the misfortune of melting fans but it does serve a performance purpose. Here it is ladies and germs;

Hot air moves faster than cold air. You keep that heat condensed but either a heat shield or heat wrap and that air will exit your turbine, o2 housing, and your exhaust quicker. Therefore giving you a little extra umph. Simple science my friends.

 

[gsxn]

This happened to me, too.. Heard a ticking noise for a couple of days and found that it was my warped fan hitting the casing. I was lucky tho and could just swap the fan and learn from my mistake without much money to pay. This happened to someone else I know and the melting fan got on the radiator. Not cool.

 

[VicBoost]

Where can i get a heat shield for my exhaust manifold?

 

[JDNSBR]

You can find some here

 

[toojung2die]

Where can i get a heat shield for my exhaust manifold?

I have one of these. They make them for SBR. Or get a stock one at a wrecking yard.
http://www.jmfabrications.com/catal...id/31?osCsid=b60e1f302664d019c77bc6018bafc949

 

[jb talons]

For those of you who go without a heat shield or use an aftermatket one, what do you do with the O2 sensor wire? The stock heat shield has supports that hold the wire off the shield. Just asking...

 

[2bclutch]

I fully agree. The winner I bought the car off of was running without one and melted through the covering of the wire for the Altenator, luckily I was able to tape it up and use some UZ Engineering Heat Shrink to fix it. Also I believe that's why some of the wiring on the driver's side headlight was melted completely through. Fortunately the radiator fans didn't get liquified. Anyway, here's that JM Fabrication one you guys are talking about installed on my 98 GST.

You must be logged in to view this image or video.

 

[toojung2die]

For those of you who go without a heat shield or use an aftermatket one, what do you do with the O2 sensor wire? The stock heat shield has supports that hold the wire off the shield. Just asking...

On a 2g the o2 sensor wire is long enough to route along the bottom of the radiator. Wire tie it in place.

 

[SaiyanFury]

Yeah I know what you guys are talking about. I have friends back in Winnipeg (I live in Florida now) who did this. My best DSMer friend (dsmoverboosted on this site) took off his heat shields for appearance, as well as just having his car freshly repainted from Maaco, the same guys that did my car before I owned it, and now the paint flakes off my hood whenever it gets warm. Another repercussion that I have to deal with. Either paying out my butt to get my hood repainted or go the carbon fibre route, which I think is the way I'm going to go, as I don't like my car looking like major ass, as my paint really sucks.

 

[leet]

i don't have heat shields on my vr4

.. Yay?

 

[cumpersgsx]

its always been on a list of things to do...but i keep getting caught up trying to keep it running first.

 

[Dragon TalonTsi]

Now, I have one big question, will these polished heat shields work with aftermarket manifolds, like mine or others? I have been contemplating these for a long time, and yeah, I would like to get these, and decrease my engine bay temps, but will they fit?

 

[oldman]

Now, I have one big question, will these polished heat shields work with aftermarket manifolds, like mine or others? I have been contemplating these for a long time, and yeah, I would like to get these, and decrease my engine bay temps, but will they fit?

Tubular no, copies of the stock manifold like the SBR manifold or Turbocharger's GT manifold yes.

 

[Dragon TalonTsi]

Oh, crap man, well, at least I didnt waste 45 buck on this, well, what will work? Probably only a custom job will do it then huh? Now, you mean like the cast iron mani? I can see why people get those pretty heat shield, to cover up those hideous manifolds... oh well, it was worth a shot... d@mn it!!

 

[oldman]

what will work?

Exhaust heat wrap, looking purdy and practicality usually don't go hand in hand.

 

[kenamond]

He has a ceramic insulated tubular mani. Would the ceramic alone be enough of an insulator?

 

[oldman]

He has a ceramic insulated tubular mani. Would the ceramic alone be enough of an insulator?

Define "enough". Is there such a thing as "too much insulation" or "too low of engine bay temp"?

 

[SaiyanFury]

Define "enough". Is there such a thing as "too much insulation" or "too low of engine bay temp"?

I agree with oldman. There is no such thing as too much insulation, and too low of an engine bay temp. Keeping things cool is the name of the game when dealing with turbos.

 

[joey0480]

Along the lines of this thread, I need some advice. The lower heat shield was rusted and falling apart (the one across from the alternator). It was also causing some sparks. So, it was removed. Should that be replaced. From what I am reading, that is a yes correcT?

 

[joey0480]

Along the lines of this thread, I need some advice. The lower heat shield was rusted and falling apart (the one across from the alternator). It was also causing some sparks. So, it was removed. Should that be replaced. From what I am reading, that is a yes correcT?