I know im going to get flamed for not searching thoroughly on HT but i have a few questions on material.

I was wondering what kind of material I should be looking for? 304L 1.5" butt-weld elbow, schedule 10/40?

What CLR's do you guys use?

What's the proper angle for building the collector? Also, am I looking for 100% penetration for them?

Anyone actually built a true EL manifold? meaning taking account of the arc length and straight to be the same length on each runner?

I think that's about it, I probably can figure the other things myself.

Thanks.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by damnraz &raquo;</TD></TR><TR><TD CLASS="quote">
I think that's about it, I probably can figure the other things myself.
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But, what else is even left....lol.

 

word/\/\/\

 

I hope you arent planning to build them to sell. You don't seem to know the basics of the assembly.

Plus the fact its a saturated market and you will be wasting your time. Go make Hyundai manifolds or some weird ****. Then you can charge twice as much for the same thing.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by damnraz &raquo;</TD></TR><TR><TD CLASS="quote">
Anyone actually built a true EL manifold? meaning taking account of the arc length and straight to be the same length on each runner?
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peakboost does and i'm sure any other honda manifold fabricator could but they would probably charge extra if you wanted it true equal length.

 

Hes just looking for tips. Obviously hes not going to be your competition in the industry. Lets propel the industry, not deter people to hate it.

 

There always has to be that one preacher.....

 

ahh sorry, Im used to DSMtuners...

I guess Im intererested in the same topic as the OP, not reasons why hes stupid. If you have advice, post it. If you dont want to explain, but you have a link, post it. If youre a genius to the industry, then give a little insight. Im sure hes not looking for all the secrets, just a little help. Sorry preaching again...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by random_tuner &raquo;</TD></TR><TR><TD CLASS="quote">ahh sorry, Im used to DSMtuners...

I guess Im intererested in the same topic as the OP, not reasons why hes stupid. If you have advice, post it. If you dont want to explain, but you have a link, post it. If youre a genius to the industry, then give a little insight. Im sure hes not looking for all the secrets, just a little help. Sorry preaching again...</TD></TR></TABLE>

Well I don't think someone who makes and sell manifolds for a living are going to outright tell you how to make them beside like what size piping to use and help with welding related q's. IMO the collector angle issue is definately one of those touchy subjects when people ask from other threads i've read. It's kind of a trade secret so they just don't want to give it out. If i ever build my own manifold i'll probably just buy a unwelded precut collector.

 

If you know how to weld go for it. The specifics of how to build it are all on this site if you search.

For the love of honda I hope you are a welder looking to get into something on the side instead of a honda geek looking to get into the welding side of things. We have enough of those already.

Don't count on making any money at this btw.

 

I find that funny, I never implied I was going to build to sell manifolds. I'm a hobbyist and this is what I love to do. I work doing GTAW for a living and I'm pretty sure I have enough experience behind my belt to build a high quality manifold. I've seen plenty of manifolds going for around $500/$800 dollars and from a welder/precision fitter's point of view they're just crap, it's just somebody who has a tig welder, strikes and arc and feeds wire with their half *** fit-ups, probably cuts and fits joints inside the bend radii and adds unreasonable amounts of unnecessary joints to make it work. Also probably doesn't even know how to back purge his work and leaves the sugar inside and says that's his welds are the best. I have alot of respect for Full Race, RCautoworks, PeakBoost, plenty of others who understand the concepts of pipe fitting and actually know what a good weld is supposed to look like (ooh yea, I forgot to add, I'm also a certified weld inspector in the aerospace industry) Blah blah blah.. Just letting some heat off even though I know you probably apologized. You shouldn't judge a person without understanding his background. For example, just pretend your George Bushg and I said you weren't the president of the United States, blah bad example. whatever

 

Oh yea, I'm building not to sell, I'm building this because I think it might be a fun project for me, I like to build things, why? because I'm a fabricator.

 

thank god! Serisously build some manifolds dude. It's great fun as a side project

I think as a forum we are much more inclined to help a welder learn to build manifolds than a car guy learn to weld.

So ask away. If you spend about 30 min searching you will find of a ton of pics and info on here.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ManBearPig4silly &raquo;</TD></TR><TR><TD CLASS="quote">thank god! Serisously build some manifolds dude. It's great fun as a side project

I think as a forum we are much more inclined to help a welder learn to build manifolds than a car guy learn to weld.

So ask away. If you spend about 30 min searching you will find of a ton of pics and info on here. </TD></TR></TABLE>

Thanks, I appreciate your comments. Yes, I think it would be fun as a side project and that's why I asked these questions

 

Oh yeah lol the info. most commenly used matieral is 304 1.5 sch 10 weld els and pipe full pen backpurged and welded with 308l(root /fill/ cap....duh) and 309 for pipe to the mild steel flanges(MS expands less and doesnt potentially shear the exhaust studs in a high heat turbo app plus it's cheaper)

http://www.acestainless.com for the bends

http://www.bmcrace.com or wiertech(can't remember his website) for flanges.

As far as design take some pics from here and use your pipe fitting kungfu to come up with the best way to build it for your needs/desires.

Your specific design questions will always end in argument on here so glean what you can and go from there.

General procedure is...

build and weld collector.
fit up and tack entire design in a jig or the engine bay, weld as much as you can get to.
break off each individual runner and weld comepletely.
reassemble it all, swear a lot and weld it all up while hoping for the best.

haha bigbob got meantioned with the big names. Nice work dude I was always cheering for ya

 

it's pretty easy to figure out how many bends and straights are needed if you look at the kind of manifold you wanna make. It's pretty self explanatory, you just might have to cut a little here and there from the pipe to fit up correctly. That's the harder thing about el manifolds because you have to have same length runners so you don't have the flexibility to shorten runners to make the manifold fit right.

 

Thanks for the much need info. I understand why MS is used for flanges since it's less prone to warping compared to SS. I might build an aluminum jig to dissipate the heat while welding the runners. I have a general idea of what needs to be done now, thanks for everything. I'm glad somebody is kind enough to help a fellow HT member out. As for as the collector goes, Kenetics was kind enough to give send me a link.

 

An old cyl head ro some 1in al plate from the scrap yard works great as a heat sink.

Me thinks you are on the right track.

 

Yea, might also be a good idea for me to build an aluminum jig for the collector flange also, hmph.

 

AL flanges for everything with random steel pieces to put them in the right position is the way to go. We all know how SS likes to move when heated.