Intake Manifold Flange
Elite Member
Joined: Jul 2005
Posts: 2,502
Total Cats: 146
From: Anacortes, WA
I have a drawing for one if you can find a place to machine it out. I used 1/2" 5052 aluminum and welded a 99 flange onto a 95 manifold minus all the egr casting features. Somebody on the PSMG list, Jon? had it made for me and I traded a 99 manifold for it.
Bob
Bob
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Scribe round a $12 intake gasket and go nuts with a bandsaw and drill. That's what I did. Finished off the ports with a die grinder and a carbide bit but you could use a file.
I used a piece of thick 6062 (HE30) ally because its easy to weld to just about anything using 4043 rods. Also factor in the warping caused by welding. My first attempt using 8mm sheet went like a bannana so tried again using 16mm plate. It still warped over 1/4" from end to middle to end but I tweaked it back into shape using a 12ton press before skimming it flat on the mill.
I used a piece of thick 6062 (HE30) ally because its easy to weld to just about anything using 4043 rods. Also factor in the warping caused by welding. My first attempt using 8mm sheet went like a bannana so tried again using 16mm plate. It still warped over 1/4" from end to middle to end but I tweaked it back into shape using a 12ton press before skimming it flat on the mill.
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I have some 'fancy' BP4W ones that I used for my intake manifold build made out of 1/2" 6061.
The port holes are angled to match the head and tapered slightly. The flange also has recesses for the tubing to make construction easier. The ports are matched to the gasket.
After a little port matching, the runner tubes end up perfect.
I have two ready to go - $125 shipped each.
If you want to see more pics of my manifold build, they are here.
--Ferdi
The port holes are angled to match the head and tapered slightly. The flange also has recesses for the tubing to make construction easier. The ports are matched to the gasket.
After a little port matching, the runner tubes end up perfect.
I have two ready to go - $125 shipped each.
If you want to see more pics of my manifold build, they are here.
--Ferdi
Last edited by ftjandra; Jan 19, 2010 at 05:18 PM.
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So FTjandra. If you had orders for 10 of the manifold you built modded for Miata use, how much chashola could you build them for !!!
Last edited by cueball1; Jan 19, 2010 at 06:15 PM.
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I have some 'fancy' BP4W ones that I used for my intake manifold build made out of 1/2" 6061.
The port holes are angled to match the head and tapered slightly. The flange also has recesses for the tubing to make construction easier. The ports are matched to the gasket.
After a little port matching, the runner tubes end up perfect.
I have two ready to go - $125 shipped each.
If you want to see more pics of my manifold build, they are here.
--Ferdi
The port holes are angled to match the head and tapered slightly. The flange also has recesses for the tubing to make construction easier. The ports are matched to the gasket.
After a little port matching, the runner tubes end up perfect.
I have two ready to go - $125 shipped each.
If you want to see more pics of my manifold build, they are here.
--Ferdi
beautiful manifold, my hat goes off to you
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You could try getting in touch with the guy who owns Weirtech. He claims to offer the best flanges at the lowest prices. I don't spot a BP intake mani flange on his website but apparently if you provide him a gasket he can machine them at a reasonable price...
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ok here is a novel idea, take a intake mani gasket find a local small job shop(machineshop) and say hey can you make me a flange like this gasket out of 6061-t6. leave some extra meat on it. all that really matters is the hole pattern and the ports. what he is asking for the flange above is a good deal, the fact that the port holes are angled is a huge huge plus, and the machine work is top knotch. its a matter of building an intake mani isnt for the faint. so bone up and stop being cheap and lazy!!!
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