No heat shield.

[unlinkedeclipse]

I'm thinking about running with no heat shields and I just want to know if this will hurt my car in any way?

 

[fourreGsixty3]

Please search first, there are hundreds of threads on this subject.

Yes it will hurt your car in several ways.
1) The heat shield helps "shield" the heat coming off the exhaust manifold from heating the whole engine bay up too much, so this will hurt your silicon or rubber hoses.
2) Since our cars are turbo'd they love cold air, and this hot air will decrease performance heat everything up that much more like oil that if you dont let your car cool down at idle for a few minutes after driving can boil inside of your oil lines, and weaken them, the air charge coming into the intake manifold will be hotter, and hotter air means a bigger possibility of detontation.
The solution is to either leave it on, but if its all rusted up then go to SBR, or jmfabrications.com and get a nice polished one, or paint it with hight temp paint (any color) 2000 F,or heat wrap the exhaust manifold, also you could hot jet (blue) the exhaust manifold.

Hope this helps some,

Dustin

 

[oldman]

I'm thinking about running with no heat shields and I just want to know if this will hurt my car in any way?

I will post my latest experience in case if anyone else is wondering about the same thing. My car was overheating after a complete overhaul this summer. I was running without the bottom heatshield due to Aftermarket turbo and O2 housing and my logger shows intake temperature of 120's cruising on the highway and 130+ standing still while my coolant temperature lingers at 220's reaching 230 after WOT. I replaced the Autozone thermostate with an OEM 180 with a much larger opening, added a bottle of Royal Purple Ice and reinstalled my stock bottom heatshield after some triming. The coolant temperature is now down to 199 -206, my fans are no longer on all the time, and most of all, my intake temperture is now less than 5* above the ambient temperature.

Running without the top heatshield will make things even worse, the above situation was with the stock top heatshield wrapped around a ceramic coated manifold, a bare burbo and a ceramic coated tubular o2. Looking good rarely means it's good.

 

[unlinkedeclipse]

Yeah I searched and I must have missed them sorry... And thank you cause I was thinking about running without them, how much does the paint cost?

 

[fourreGsixty3]

$7 for a 12 oz can here>>> http://www.midwayautosupply.com/detailedproductdescription.asp?907, but just google up some places using "high temurture engine paint" and look around and your bound to find many colors.

Dustin

 

[unlinkedeclipse]

And will that ge rid of the need for shields?

 

[oldman]

And will that ge rid of the need for shields?

NO! Did you read my post?

 

[skinnykenny84]

Head harder than woodpecker lips! Just kiddin, do both.

 

[unlinkedeclipse]

Sorry, it sounded like he was saying the paint was a replacment option to shields. Okay, well I guess its time to put back on the amazing ugly shields hahaha. Thanks guys.

 

[oldman]

Sorry, it sounded like he was saying the paint was a replacment option to shields. Okay, well I guess its time to put back on the amazing ugly shields hahaha. Thanks guys.

Send down the rusty one and paint it with hi-temp silver like I did. Hi temp spray cans you pick up locally means the paint will withstand heat without melting, not necessarily mean it carries heat shielding properties. If you read my post carefully, you will see that both of my manifold and o2 housing were ceramic coated and the only thing I was missing was the bottom heatshield, nothing beats stock heatshields.

 

[1990talon]

Well I am not running a heat shield but what I did what used heat wrap around my Intake just after the turbo and It goes down to the inter cooler from there also I have nothing around my turbo no power steering hose vaccum hose or any thing so it works for me and still looks good. but I would agree with out anything it probably isnt the most efficent.

 

[oldman]

Well I am not running a heat shield but what I did what used heat wrap around my Intake just after the turbo and It goes down to the inter cooler from there also I have nothing around my turbo no power steering hose vaccum hose or any thing so it works for me and still looks good. but I would agree with out anything it probably isnt the most efficent.

What kind of intake temperatures are you logging?

 

[DGajre777]

Sorry, it sounded like he was saying the paint was a replacment option to shields. Okay, well I guess its time to put back on the amazing ugly shields hahaha. Thanks guys.

If you jet hot coat it, you probably can. But why would you want to spend a couple of hundred bucks coating stock parts?

http://www.jet-hot.com has more info - If you deciede to coat it, I would go with the Jet Hot 2000 coating.

 

[1990talon]

only been borowing a logger been showing around 5 degrees below outside temp.

 

[1990talon]

Is this good bad normal I have a big front mount intercooler.

 

[oldman]

Another aspect which has not been discussed here is that "hot gasses" travels faster so the more heat you keep in, the faster the exhaust flow.

Wrapping the licp will help just a little bit but missed the point all together. The goal here is to minimize heat from escaping in the first place, once heat has escaped, it will get sucked up by your turbo where the heatwrap does a good job of keeping it in. The heatshields should always be used when possible, you can say your butt dyno says you're running fine but I guarrentee you will run better with them. In the case of tubular manifold/O2, at least heat wrap, coating or both. On the exhaust that is.

 

[Defiant]

Search "melted fan blades".

 

[fourreGsixty3]

Sorry, it sounded like he was saying the paint was a replacment option to shields. Okay, well I guess its time to put back on the amazing ugly shields hahaha. Thanks guys.

Opps sorry about the misunderstanding, I was talking about painting you stock heatshields...after you sand them down of course or heat wrapping the exhaust manifold or jet coating the mani. Also http://www.slowboyracing.com/shop.php?sid=&cat=4616 makes a nice stock replacement for 45$ as well. http://www.jmfabrications.com/catal...id/44?osCsid=a67732e4de95d644af3a6fc9b9083d0f has a nice polished one for 45$. From either company you can get a polished stock heat shield with a cut out if you running a WG off the manifold.

Dustin

 

[SBstar]

You know I see many posts about this and I wonder to myself, if this is so true then why do I see so many dsms (walk around the shootout plus any I looked at for sale) don't have the heatshields. I guess its a mystery. Anyways being that my car is drag only I'm not running them, however I would suggest keeping them for a regularly driven car.