would the 2" 2.0x ID pipe be too much?

 

well according to my pocket ref., schedule 40 1.5in has an OD of 1.9in and 2in schedule 40 has an OD of about 2.375 which means its over 3/8in bigger so I'm pretty sure it won't work and is probably overkill on a hole thats barely 1.5in anyway.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Redlineracer &raquo;</TD></TR><TR><TD CLASS="quote">well according to my pocket ref., schedule 40 1.5in has an OD of 1.9in and 2in schedule 40 has an OD of about 2.375 which means its over 3/8in bigger so I'm pretty sure it won't work and is probably overkill on a hole thats barely 1.5in anyway.</TD></TR></TABLE>

really if you go any bigger there is going to be a drop in pressure ,like u said the hole is barely 1.5 and even though the turbo is creating back pressure the pressure differential from the head to the piping going to a 2" primary will be too much and when theres a drop in pressure theier is a cooling of the air wich in a turbo setup you do not want. anyway if you look a big v8 look at the piping diameters in thier setups it only 1 5/8 to 1 7/8
thats just my .02 cents

 

ok but i said heder. meaning. NA. same im sure though . thanks

 

I would stick with 1.5in then because you want the exhaust velocity to be high enough so that when the intake valve opens you don't suck it back into the chamber creating that vortex thingy that I have been reading about in fluid dynamics books.

 

ok.. hehe.. i played around at work today. with my big lincon MIG welder.






then, played around with tubular stock.


so then.. some of the guys at work, were asking me what the hell i was doing.. lol, so then we got on the subject somehow of ARC welding.. well... started on that now.. thats fun stuff.. HUUUUGE flashes, and lots of sound.




then, after knocking off all the slag.. not too shabby of a weld.. super ******* strong.. alot stronger than a MIG anyday.

 

Hello,

I have a question, someone said this quote "piping only comes in 1/2" sizes: 1/2", 1", 1.5"...... etc.
Its 1.5" sch 40 found through mcmastercarr"

what do those numbers mean? Sorry, but im new to this piping and welding..I dont have a welding machine, but I would like to start learning about the pipes..
can someone explain to me what 1.5" is on the manifold? is that the diameter of the pipe? how thick are those pipes anyways? what is the "SCH40"?? is that the thickness? oh yeah, I have another question...how thick are usually those turbo manifolds? and also, would a MIG welder be efficient to build a turbo manifold?

thank you in advance for any inputs..

 

God damn Chris that first weld is beautiful. I swear I give up on welding, lol. Looks like you guys are productive there

 

hey.. some of our best work comes when we're playing around.. beats doin actual work.. hahaha!

but yeah, im pretty slick with the mig, but if you need to weld up .5" or more.. arc is your method. penetrating as hell, but you always have to make 3 passes or more.

 

mig would be fine to build a manifold.

however the shc. # found on pipes, maybe some vetran welders here can explain better than i can.. i heard its 1 of 2 things.. 1 it being actuall tube wall, 16-18 ga. ect. 2 being the volume it can hold.. its PSI. might only be true in PVC, but i dunno.. somoene in this thread knows.

 

dont be hatin....

&lt;n00b at welding....started with oxyacetelyne welding....

i'll try to get some pics of my work tommorow bwahahaha

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Hybrid Racer &raquo;</TD></TR><TR><TD CLASS="quote">started with oxyacetelyne welding....
</TD></TR></TABLE>

me too, that's the best welding I can do. I suck at MIG But with the good ol' torch I have much more control than the stupid gun.

 

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

me too, that's the best welding I can do. I suck at MIG But with the good ol' torch I have much more control than the stupid gun.</TD></TR></TABLE>
&lt;been working at puddles real hard...lol

might start doing some filler rod tommorow.....

 

thought i would make my contribution

these are some of my first oxy acetylene welds



heres the penetration of the last one

 

heres a pic of my first TIG welds (kinda crappy havent gotten the hang of it yet but hey it was my first time ever trying) there on steel by the way.

 

Tig welded isuzu manifold.. Trying to improve my skill with an olld miller Mig/Tig/Stick. I dont have that really nifty pulsing feature which the new tigs have, so i've improvised by trying to master the skill by "pulsing" with the amperage pedal manually.. i think it really increases the weld penetration, quality.. and has a lower heat input to boot!

 

damnit.. i wish i had a TIG machine..

oh well, i'll put up some of my mig welds up against some of these TIG's ive seen... heh

 

Thank you for replying..much appriciated.

So its ok to use MIG to build a custom made turbo manifold. Thats good to know

How thick are those manifolds usually (in gauge measurement? 12ga?, 14ga?) and how big are those pipes suppose to be (in diameter 1.5", 2.0" or 3"?) Are pipes measured by the inside diameter or outside? ALso, how thick are the flanges suppose to be? (how many inches?).

Thank you in advance for anyone who can answer my questions...have a good day!

 

i always use 1/2 inch flanges, and i use 8 gauge piping, wether it be standard cold rolled, or 304L stainless...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by lazerus &raquo;</TD></TR><TR><TD CLASS="quote">i always use 1/2 inch flanges, and i use 8 gauge piping, wether it be standard cold rolled, or 304L stainless...</TD></TR></TABLE>

What diameter piping would be used for a b-series manifold?

 

thanks for the reply...

umm..what does "standard cold rolled" mean or "304L stainless"?? all I know is stainless steel metal or low carbon metal...even those, im not so sure! haha

but thank you again for helping...1/2" thick is good? alright...I heard people use 3/8" thick, will those be efficient enough?

Thank you again...

 

i preffer 1/2 inch to 3/8 because it tends to warp less, but many people use 3/8s without problem, its just my preference based on experience. (that and i hate sanding down flanges)

Almost any 4 cylinder honda is easiest to use standard 1 1/2 inch OD pipes and slightly oblong them at the header flange to fit...

you can obtain most anything you need pipe wise from http://www.mcmastercarr.com...

if there is one peice of advice for welding anything.. make sure the peices being welded are CLEAN and free of mill scale.. Standard practice for me now is to have every peice i welded sandblasted, and constantly clean using a wire brush before welds to ensure that there will be no foreign material in the weld..

Always keep a peice of scrap metal to set your machine properly, and use a rythm while you weld, it makes it more uniform!

While on this topic.. Lets talk about aluminum welding, i've been practicing lately and trying to figure out the most consistent and penetrating welds.. Try and describe your techinques!

Brad

 

Hi Brad,

Thank you for taking the time to reply and answer my questions. I am now learning more about what type to use and such. I never knew that there are soo many differnt metal to use for manifolds. Any specific type of metal for the pipe of the manifolds? How about the flange? what type of metals are good too? Something that is good quality but not very expensive in pricing? I checked that site that you refered, and I kinda got lost! haha, soo much things..didnt know where to start. Do you usually make your own flange? if so how do you usually start? would there be like a site that would show somehow how to make a manifold? Im just planning on starting to make a LOG style for now..just as a beginner one, would it be hard to make one?

Thank you again for your help...much appriciated!

Edit: I checked at the site you refered and ebay and found these...

2x 304L Stainless Steel Butt-Weld Pipe Fitting 1-1/2" Pipe Size, Tee, Schedule 10 (p/n 45735K255)
2x 304L Stainless Steel Butt-Weld Pipe Fitting 1-1/2" Pipe Size, 90 Deg Elbow, Schedule 10 (p/n 45735K215)
1x http://cgi.ebay.com/ebaymotors...78521 (block flange)
1x http://cgi.ebay.com/ebaymotors...76968 (turbo flange)
1x http://cgi.ebay.com/ebaymotors...33742 (for the wastegate flange)

I was wondering if these materials would be good to create a turbo manifold? If so, would there be anything else (materials) required to make this?
Thank you again...


Modified by hondaboii at 3:30 AM 2/20/2004



Modified by hondaboii at 3:43 AM 2/20/2004

 

i like this thread, getting interested in welding and i stumbled upon this. keep up the good work. hopefully i can show my work one day.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by hondaboii &raquo;</TD></TR><TR><TD CLASS="quote">2x 304L Stainless Steel Butt-Weld Pipe Fitting 1-1/2" Pipe Size, Tee, Schedule 10 (p/n 45735K255)
2x 304L Stainless Steel Butt-Weld Pipe Fitting 1-1/2" Pipe Size, 90 Deg Elbow, Schedule 10 (p/n 45735K215)
1x http://cgi.ebay.com/ebaymotors...78521 (block flange)
1x http://cgi.ebay.com/ebaymotors...76968 (turbo flange)
1x http://cgi.ebay.com/ebaymotors...33742 (for the wastegate flange)

I was wondering if these materials would be good to create a turbo manifold? If so, would there be anything else (materials) required to make this?
Thank you again...


Modified by hondaboii at 3:43 AM 2/20/2004</TD></TR></TABLE>

you need to be usning schedule 40. 10 is too thin