Header Heatshield
08-09-04, 12:31 PM
#5
The "FlowMaster"
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I have one. The purpose of them are to keep the tiny gas particles in the intake from evaporating before they get in the motor. Mines seems to work just fine and adding a polished heat shield gives the engine a cleaner look IMO
08-09-04, 12:53 PM
#6
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BEFORE: Notice I welded the manifold instead of using block off plates 
AFTER: It attaches via the 2 lower outside manifold bolts, its just an L shape design.
AFTER: It attaches via the 2 lower outside manifold bolts, its just an L shape design.
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08-10-04, 06:34 AM
#10
Airflow is my life
I use header wrap. But be warned that it will shorten the life of the header. If that bothers you, then make a metal sheild. It will at least reflect alot of the heat away. Heres a thought. Make a metal sheild, and cover THAT in the wrap.
08-10-04, 07:51 AM
#11
If you are going to make a heatshield make it out of aluminum, not steel. The thermal properties of aluminum in this case are going to be far more beneficial than that of a carbon steel, especially in the application as a heat shield. Aluminum has a much higher heat capacity than that of steel. Heat capacity meaning the amount of heat that is needed to raise the substance one degree per unit of mass. Aluminum has a specific heat of about 963 joules per kilogram degree celsius. Common steels are usually between the 400 and 500 range. Based of the specific heat capacity of these two materials you can double the effectiveness of your heat shield just by switching materials.
In other words, if you put the same amount of heat into two different heat shields (one aluminum, one steel), the steel heat shield will heat up twice as much as the aluminum. Just something you might want to consider...
In other words, if you put the same amount of heat into two different heat shields (one aluminum, one steel), the steel heat shield will heat up twice as much as the aluminum. Just something you might want to consider...
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