Building my first manifold, looking for a few tips

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12-05-2004, 11:19 PM

FooK

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Building my first manifold, looking for a few tips

I am gonna do my first one in mild steel, save myself some money cause it'll probably end up kinda wacked.

simple question really, wondering what kinda sizing I should do on the tubing.

i was thinking like 1.75" x .120wall, too much wall thickness? not enough? should i go 1.5"?

also, whats the common angle to notch the tubing for the collector?

12-05-2004, 11:25 PM

MikeJ-2009

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Re:Building my first manifold, looking for a few tips

1.5" on the runners, and you weld the flange on the manifold at the angle it works best in your car. Test fitting will work.

12-05-2004, 11:31 PM

Honda16hb

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Re:Building my first manifold, looking for a few tips

kylez helpful hints: put the head flange on the head when you weld it. also, weld good, my ---- leaks.

12-05-2004, 11:39 PM

turboboy

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Re:Building my first manifold, looking for a few tips

Quote:

Originally Posted by Stealthmode

1.5" on the runners, and you weld the flange on the manifold at the angle it works best in your car. Test fitting will work.

i think he meant the angle of the pipes in the collector in relation to each other, not the angle of the flange. In that case, i believe the shallower the better

12-05-2004, 11:39 PM

beerbongskickass

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Re:Building my first manifold, looking for a few tips

I would buy one of those already made collectors. Would make things a lot easier.

12-05-2004, 11:50 PM

shitbird

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Re:Building my first manifold, looking for a few tips

Bolt the manifold down when welding it up,put a bevel on every pipe end to get good penatration.And the collector,here.
http://www.honda-tech.com/zerothread?id=1005299

12-06-2004, 12:45 AM

Honda16hb

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Re:Building my first manifold, looking for a few tips

that ht link shows what a bunch of asshats are on ht, and it has a little collector info. hmt= teh best. shitbird makes and sells collectors, yet he still helps people put them together on their own.