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[7808]

1.5 sch pipe size would be overkill in a honda, (for manifold runners) 1.25sch has a od of 1.66

[JohnHandcock]

I suppose to pick up some  today but ran out of time. Im have to bust out the tig welder

[7808]

you guys got any tricks for notching out pipes to merge them into another at 45 degrees without a fancy shop full of tools?  ive been just straight cutting them at the angle then using grinders and grinding wheels to "round" them out to lay against the straight pipe nice, takes forever and sucks

[ratcityrex]

Old English 800............. probably the worst tasting malt liquor in the world.

[weirtech]

if you have access to a mill, a holesaw would do it.  anther option is a plasma cutter.  make a template and trace it onto the pipe and cut as much as you can with a vertical band saw or an angle grinder.  proper tools can make life much easier.

[7808]

got one for $38 after sale and coupon. cutting 1.25 sch  at a 50-55 degree angle is pushing this thing but it works fine.

http://www.harborfreight.com/pipe-tubing-notcher-42324.html

[CSaddict]

Usually those tend to be offset to one side and you need to shim the sliding ring.

[7808]

this should work

[92CXyD]

I like this 

[ratcityrex]

Looking good

[7808]

what I love about mig welding.. its pretty easy to fill large gaps by dragging a puddle across, and im pretty good at it because I suck at measuring and planning



messed up, didn't leave enough room to sneak a down pipe past runner 6, had to cut it off and re make it with 2 45s, ended up warping the flange pulled up on that end. had to get creative. I sliced the runner back apart and shoved a piece of steel under #5 and bent it back down using the bolts to pull it. it was pretty bad now its pretty good

[7808]

ya so I pretty much cant fit a wastegate pipe off the manifold anywhere, kinda built my self into a corner.

im thinking about using some 1" OD tube I have and taking a branch off each of the two main runners into a little collector into my 38mm wastegate.  anyone know if this would work ok?

[ratcityrex]

I don't see why it wouldn't work.

[Eggylshatch]

Sounds pretty normal to me, and looks like it should be easy enough to do where those two long segments run parallel

[92CXyD]

I know its probably a stupid question, but what do you think would be better for a 4 branch, mild steel or stainless ?  Been reading the recent posts about manifolds cracking and what not and wondered if a mild steel one would be better. Im assuming mild is softer than stainless ? Just wondered if it could cope with the vibration / heat stress better as it is slightly more flexible.

Besides, I need a manifold, I can weld mild, and Im really poor

Again with replying old posts 

For lower cost use mild steel, use thick walls and good wire/rod for the material.
For cheap log manifolds, search on here some excellent ideas.
Seen people use weld els, plumbing pipe, fence posts, and the like.
Main thing is use supports/braces, think about the weight of turbo, wastegates and flanges hanging about brace help cut cracking done to a minimum.