question for you guys regarding an exhaust manifold being ported and polished...
07-20-2004, 05:44 AM
#1
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question for you guys regarding an exhaust manifold being ported and polished...
i bought one a while back with the intentions of installing it after doing my KO4 J31 upgrade but have decided against that upgrade.
the guy i bought it from said it was ported and polished from spp. now it's used and i am trying to sell it but i have no idea if it actually is ported and polished since its dirty from being used. how can i tell if it is p&p? i can post pics later but im at work right now
the guy i bought it from said it was ported and polished from spp. now it's used and i am trying to sell it but i have no idea if it actually is ported and polished since its dirty from being used. how can i tell if it is p&p? i can post pics later but im at work right now
07-20-2004, 09:32 AM
#4
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havent looked, its been sitting in my garage collecting dust
if it is ported it should be bigger than the ports on the gasket correct? i guess i should find a gasket to compare it to
07-20-2004, 12:40 PM
#5
extrude hone before and after
as you can see the extrude hone didnt remove much material. what it did was smooth out the inside from a very rough cast surface to a high to mildy polished surface.
where the extrude hone material encountered greater resistance to flow is where it was polished more.
before
<img src="http://pictureposter.audiworld.com/143/manifold_before.jpg">
after
<img src="http://pictureposter.audiworld.com/143/manifold_after.jpg">
where the extrude hone material encountered greater resistance to flow is where it was polished more.
before
<img src="http://pictureposter.audiworld.com/143/manifold_before.jpg">
after
<img src="http://pictureposter.audiworld.com/143/manifold_after.jpg">
07-20-2004, 03:47 PM
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thanks for your help guys, im gonna go look at it and compare to a gasket right now...
ill take some pics and see if you agree with my conclusion on the matter
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07-20-2004, 03:53 PM
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ok here are the pics, after what ModifiedA4 showed me i think it is P&P...
<img src="http://pictureposter.audiworld.com/55449/dsc01688.jpg">
agree with my conclusion?
agree with my conclusion?
07-20-2004, 04:40 PM
#10
yeah that definately looks gasket matched. (which i plan to do to mine)
i'd see if you can clean it and see if it looks smooth under the crap.
BTW it looks like the car was running rich. as you can see my manifold wasnt black at all.
BTW it looks like the car was running rich. as you can see my manifold wasnt black at all.