Is it possible to weld all the way around the runner? I've always wondered.

Also I am trying to weld up a 15 degree splayed collector right now, can't get all the way around 2 of the runners...



I am open to all suggestions before I either jump off a bridge or just go make some 30 degree collectors.

 

With that kind of manifold, break down all the runners. Not going to be easy welding around though, because of the placement of the pipe.

 

I already did, the runners are completely welded, its the welding them to collector that is the problem. The picture doesn't really do the situation justice, the runners are much closer together than they look at the collector area than they look like in the picture, you can barely fit a tiny torch in the middle of the collector.

 

You can break down each runner with the collector part attached. Welding inside the collector though would be nearly impossible.

 

Hmmm, if all the outside was welded though it would probably be strong enough, than just doa fusion pass on the inside of the collector... Thats the best idea I've heard yet, thanks! Me and everyone else in the shop are just stumped.


I wonder how hard it would be to get the collector to align perfectly after welding up all the runners...

 

How do you guys think the guys at KMS welded this one, its pretty similar...

 

bump for answers... i's interested in what to do also

 

the solution that makes most sense to me is to weld perhaps only one elbow to each pipe going into the collector. this way you should hopefully have access to do the whole collector and then join the elbow to each of the welded up runners. obviously this solution doesn't apply in your case since you've already welded the runners completely. i've done this a couple times on the bmw manifolds i've built since access was not the easiest. you can see this collector would have been in the same situation as you are because the runners go under the collector:




in the last pic you can see runner #4 goes directly under the collector... i welded this runner competely with the collector pipe on it as well and joined it to the collector after everything else was welded up. aside from coming up with a design that works, you need to come up with a way to build it that will keep it as easy for yourself as possible.

 

Thanks for the tips guys, I am gonna try and get something put together this weekend.

 

I would put number 2 runner on last , the one on the front left if you are looking at it from the front ,

 

ill agree weld one runner at a time and then weld runner 2 last if you cant get all the way around then weld the small bit iinside the collector turn up the argon flow extend the tungsten out and aim well simple and next time always think ahead and make the last runner reachable is all

 

only weld the 1st bend coming off the collector for each runner? even after you do that though youll have an interesting time getting around all the pipe to weld the rest of the runner to those bends.

 

The pictures that nobody shows are the ones where they couldn't weld all the way around and it's got poop weld on it. lol

Part of building a manifold like that is designing it so that it can actually be assembled.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tony1 &raquo;</TD></TR><TR><TD CLASS="quote">poop weld</TD></TR></TABLE>

you said poop... that's welding technical jargon.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tony1 &raquo;</TD></TR><TR><TD CLASS="quote">Part of building a manifold like that is designing it so that it can actually be assembled.</TD></TR></TABLE>

That's crazy talk.

 

****, that's my biggest reason for using slip fit collectors, you don't have to deal with that mess! lol

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tony1 &raquo;</TD></TR><TR><TD CLASS="quote">****, that's my biggest reason for using slip fit collectors, you don't have to deal with that mess! lol</TD></TR></TABLE>

i knew it! Tony's just a lazy ***

 

Not lazy, smart!
Or would that make him a smart *** then?

 

I think lazy smart *** is a good summary. lol

 

does anyone use sch 10 ss els then transition it to something like a burns slip merge collector?? i know you should just make it all out the 321 ss tube but sch10 just seems so much sturdier and gives you a larger margin of "error" on strength issues.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tony1 &raquo;</TD></TR><TR><TD CLASS="quote">****, that's my biggest reason for using slip fit collectors, you don't have to deal with that mess! lol</TD></TR></TABLE>

Its not impossible to assemble, I just need to build some good jigs, I am just gonna weld the runners to the individual pieces of the collector than weld it all together. I'd like to use slip fit connectors but these manifolds are going to be used for rally racing so I want them to be bullet proof.

 

You think most rally cars have manifolds made out of pipe?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tony1 &raquo;</TD></TR><TR><TD CLASS="quote">You think most rally cars have manifolds made out of pipe?</TD></TR></TABLE>


I don't know I don't have any background in rally racing and I have never built anything for rally cars, but by nature I just like things a little overkill and beefy.