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Anybody know how to port the exhaust manifolds???

NewBlueGT

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Just looking for a little tutorial. I don't really want to pay anybody to do it, I kinda wanted to tackle it myself. Thanks guys and gals.
 

98 TGP TOY

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You will be able to see on your exhaust manifolds where you can port to, its just the black stuff. Mainly clear all the black crap away. Also, I would do a search on the national board, as its been discussed before. And zzp tells you what they do in their set. So you could read that also. Good luck.
 
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imported_Ron Vogel

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Well, if I were to do it again I would have done it a little differently, but...
You can gasket match the manifold side, but it's going to have a very significant restriction because of the length of the short turn radius (which is just how it is) there isn't enough material there to port out on the floor to get it to flow well. However, if you make a d-port; whereas the floor is flat, and the roof is rounded, you will improve the flow on the long turn radius, and improve overall flow. The front manifold is cast, and easy to cut with a sandpaper roll, but the back manifold is welded tube, and is a whole other story. Your best bet is to go to ZZP's website and pick some clues off of what they do. You can also add material to the front header by welding on it. But you may have issues finding someone to weld it. I added some to mine with a home mig welder, so I know it can be done. Pic:
 

Mike K

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It was an easy job, though time consuming. I hogged them out as much as you can without having to add extra metal. Gasket matching is the way to go and after that just make sure the bends are smooth. Any rough edges are going to increase turbulence and lower velocity.
 
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imported_Ron Vogel

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Originally posted by Mike K@Aug 16 2004, 12:43 PM
It was an easy job, though time consuming.
Amen...It's a better deal to buy an extra set to play with for a while. Once yours are done, swap out your old ones, then sell 'em.
 

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