Polishing the cast manifold.
 

Hey guys, This may seem like a stupid question but its probably one that no one wants to ask because of the flaming that may ensue. So i will.

The stock cast manifolds are really ugly when they get that rust on there, look like a brown peice of Crap attached to your nice shiney turbo/head.
Ive been googleing and found a couple sites and methods that have to deal with polishing cast iron.

One method describes first putting it in an electrolisys bath for a day or two, then using sand paper and slowly going from a gritty one to a more smooth one. (the guy said start using 50 grit and moving up from there.)
Another post where they were restoring a cast oven, discribed using a sand blaster or also recommended using a wirewheel on a drill.

What have you guys found to be the best to make it come up with the nicest finish. Besides just ceramic coating. :) Honestly, if its possible i would like to see a mirror finish. but i dont know if thats possible with cast iron. but who knows.

Re: Polishing the cast manifold.
 

Best way it to throw it in the trash and get a decent intake manifold.

Re: Polishing the cast manifold.
 

Just do a silver ceramic coating. That way you'll actually see some benefits and it'll stay silver and not just rust immediately again.

Re: Polishing the cast manifold.
 

Exhaust manifold not intake manifold. Thought i would correct you so that some kid doesnt try to put an intake mani on the exhaust side.

Re: Polishing the cast manifold.
 

Best way is to throw it in the trash and get an FP exhaust manifold. :)

Re: Polishing the cast manifold.
 

This is supposed to be a boredom project that to me sounds fun. (at least until i get bored of that. :) Dont want to just pay someone to do this, i want to put in the time and effort and see the results.

Re: Polishing the cast manifold.
 

nm

Re: Polishing the cast manifold.
 

I think im going to start with electrolysis to clean the exhaust manifold. Ill post pics after this is complete. Should be a fun way to pass the time while my other parts are coming in. :) using this method http://users.eastlink.ca/~pspencer/n...ctrolysis.html

Re: Polishing the cast manifold.
 

How about a nice heat shield.

Re: Polishing the cast manifold.
 

LOL Your just mad because you didnt think of it first.. HA HA HA

Re: Polishing the cast manifold.
 

Umm, you know that it's just gonna rust again almost immediately, don't you?

Re: Polishing the cast manifold.
 

Polishing cast metal is like trying to polish a turd.

Re: Polishing the cast manifold.
 

The best will be when he flips it over after polishing one side to find the other side is already rusted again :D

Re: Polishing the cast manifold.
 

I believe i saw something that said you can get the manifold clear powder coated. :)

Re: Polishing the cast manifold.
 

Mythbusters actually busted that myth that you cant polish poop. They had a guy do it with his hands. made it nice and shiney.
http://www.youtube.com/watch?v=hBj6PonX14A

Re: Polishing the cast manifold.
 

But it's still a turd ;)

Re: Polishing the cast manifold.
 

We shall see.

Re: Polishing the cast manifold.
 

Lulz

I don't know why you would spend that much time trying to make a stock exhaust manifold look good. Put a heat shield on it or buy a different, better manifold.

Re: Polishing the cast manifold.
 

Just get it ceramic coated. IDK what it is, but buschur uses a really nice shiny silver coating that seems to last quite a long time.

I had MAP coat my stuff when I had it all apart, black everywhere baby.

http://www.scheides.com/albums/evo-b...9654.sized.jpg

http://www.scheides.com/albums/evo-b...9657.sized.jpg

However, I still put a heat-shield over it ;) I say get the FP manifold and get it coated, do it right, do it once.

Re: Polishing the cast manifold.
 

Ha, yes do this. We could take bets from everyone on what color it will be after a 30 minute drive, or if there will even be anything left. Then use that money from the bets to buy a heatshield or a different manifold.