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Old 04-29-2010, 02:11 AM   #1
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Default relief welds on manifold

as title says....

what is the best equipment to use to make these cuts?



just picked up my greddy kit and the cuts have not been done.

after its done.. i guess itll be in 3 pieces?
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Old 04-29-2010, 02:14 AM   #2
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Search. Hacksaw. Might not need to do them.
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Old 04-29-2010, 02:22 AM   #3
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an air cut off tool would do it easy.
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Old 04-29-2010, 02:23 AM   #4
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Chop saw, hack saw, abrasive hand held cut-off wheel. About anything will work as long as you can deburr the cut when you're done.
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Old 04-29-2010, 02:25 AM   #5
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oh ok.. and does it come out to 3 pieces like the pic above?
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Old 04-29-2010, 02:28 AM   #6
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It won't be three separate pieces but the runners will no longer be attached at the flange. You're simply allowing the manifold to expand and contract more freely by making the cuts.
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Old 04-29-2010, 02:44 AM   #7
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around...

1/8" for the width of the cut?
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Old 04-29-2010, 03:25 AM   #8
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yeah
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Old 04-29-2010, 03:25 AM   #9
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Width shouldn't matter, as long as you cut through it. But like I said, you might not have to cut the manifold if you have a new generation greddy manifold.

Mine was cut by the PO, and is currently warped to the point where I have no idea how I'm going to get it off. That's what she said.
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Old 04-29-2010, 03:31 AM   #10
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rocket launcher

make sure to wear gloves and safety goggles
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Old 04-29-2010, 03:42 AM   #11
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Fuel/ air bomb, make sure everybody around you is wearing gloves and safety goggles.
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Old 04-29-2010, 03:48 AM   #12
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Walk into a harbor freight and hit the air tools wall. 1/4 of anything on the wall can do the job for cheap.
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Old 04-29-2010, 04:05 AM   #13
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ic.. curly how can i tell if its new gen manifold or not?.. ill try get a pic up and my setup...

can't use air tools.. i do not have a air tank~...

either going to buy a hack saw.. or buy more blades for the dremel!
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Old 04-29-2010, 04:14 AM   #14
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If it's a hack saw, use lots of used motor oil to lube the blade.

Or buy a $15 angle grinder from HF and use one or two $1.99 cut off wheels for a much faster and lazier approach.

No I cannot tell if it's a new manifold. I just know that there were chronic issues with the original that required relief cuts, and that eventually people stopped doing the relief cuts and they were fine, indicating a design change.

If it's used (as it appears to be) and it's survived this long without cracks, I'd just leave it alone. However I assume no responsibility.
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Old 04-29-2010, 05:17 AM   #15
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icic.. well i rather be more conservative.. and just do the cuts.. my first setup.. so i want to boost a bit before.. getting broken parts = buying more parts
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Old 04-29-2010, 05:33 AM   #16
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I have no idea what you just said. Good luck.
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Old 04-29-2010, 07:10 AM   #17
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I think that he meant, Better safe than sorry? not sure
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Old 04-29-2010, 07:46 AM   #18
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sawsall
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Old 04-29-2010, 09:43 AM   #19
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Swiss Army knife.
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Old 04-29-2010, 09:55 AM   #20
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Portable Bandsaw FTW.
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