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Old 11-30-2008, 02:21 AM   #10 (permalink)
Moderate your Moderation.
Join Date: Nov 2008
Location: Troy, Pa.
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Pasta - '96 Volkswagen Passat TDi
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Originally Posted by RH77 View Post

So, how much efficiency can be gained by adding back the manifold shield?
It was kinda a joke, honestly... it's marginal, if anything.

The idea is the same as with header wrap... keep the heat in the exhaust as long as you can, but if you're using it effectively for something else, I'm sure your WAI is overtaking any benefit you'd get from putting it back on.

Stop it from rattling - copper crush washers (read: fuel filter/rail banjo fittings) under each bolt, properly torqued to crush them a bit, should cushion the rattle.

Put grease on the bolts before you put them in.. they'll smoke for a bit afterward, but you'll still be able to get them out the next time you need to.

When I noted about wanting to put the heatshield on my aftermarket header, I basically plan on brazing some nuts to it that will act as standoffs, and bolt the shield back on, after using header wrap on the whole thing.

My concern is that it looks more like stock than anything...
"ʞɐǝɹɟ ɐ ǝɹ,noʎ uǝɥʍ 'ʇı ʇ,usı 'ʎlǝuol s,ʇı"

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