Diy Turbo Manifold

[rps13drift]

I did some searching but couldnt realy find much. I think i want to build my own turbo manifold and im looking for advice/opinions from people that have done this! I already have a t3 flange and also the flange for the head but im curious about the material/size for making the runners? If any one has some input on building exhaust manifolds please feel free to post!

[NemeGuero]

buy mine

ETD top mount

[GSXRJJordan]

you're never going to be able to do it "better" than any premium manifold (Full-Race, etc), and probably not much cheaper than the others (There are a few top mount, equal length t3 SR20 manis out there, around $600). You've already got the flanges, that's good. You'll need 1-1/4" or 1-1/2" primary tubing, and a bunch of U's. 304 or 314 stainless will do the trick for sure, but it's a BITCH to weld. Good luck if you decide to go through with it :)

CTNewman or any other fabbers, any input?

[rps13drift]

buy mine

ETD top mount

sr20det :hs:

[rps13drift]

you're never going to be able to do it "better" than any premium manifold (Full-Race, etc), and probably not much cheaper than the others (There are a few top mount, equal length t3 SR20 manis out there, around $600). You've already got the flanges, that's good. You'll need 1-1/4" or 1-1/2" primary tubing, and a bunch of U's. 304 or 314 stainless will do the trick for sure, but it's a BITCH to weld. Good luck if you decide to go through with it :)

CTNewman or any other fabbers, any input?

I already have flanges for the turbo and the head! How much could tubeing for the runners cost? Im looking for full-race/expensive manifold placement and strength but for ebay price!

[bardabe]

I already have flanges for the turbo and the head! How much could tubeing for the runners cost? Im looking for full-race/expensive manifold placement and strength but for ebay price!
you basically wanna buy pepboys rims for your escalade. do it right the first time. and save, time, money, and stress. :bigok:

[GSXRJJordan]

I can find some links online for the 314SS U's, but they're expensive, and you literally need a shit ton of em. And this all depends on your welds not only being air tight, but strong enough to support the weight of the turbo/downpipe. Theres a reason Full Race can charge that much.

[Big Bronze Rim]

Weld-els are probably the way to go if you want to build your own. They are durable, easy to weld and will last forever. Building a weld el log style mani would be easiest, but an equal length(or close to it) manifold is totally doable. You can also use stainless weld els if you feel like doing so. Just do a google search for weld el manifold and you should find some more info. Like other posters mentioned it will be hard to beat the performance of off the shelf offerings, and unless you have all of the tools (and an honest assesment of your skills as a fabricator) to fab your manifold already, it will probably be easier/more cost effective to just pony up and buy one.

[atutt]

you're never going to be able to do it "better" than any premium manifold (Full-Race, etc), and probably not much cheaper than the others (There are a few top mount, equal length t3 SR20 manis out there, around $600). You've already got the flanges, that's good. You'll need 1-1/4" or 1-1/2" primary tubing, and a bunch of U's. 304 or 314 stainless will do the trick for sure, but it's a BITCH to weld. Good luck if you decide to go through with it :)

CTNewman or any other fabbers, any input?
Not entirely true, I know plenty of people who can produce a superior manifold, or one just as high quality. If you've been fabbing for a long time you can make a turbo manifold. BUT, unless you have that experience, chances are your welds will crack because you didn't properly prep the material (which happens a lot with people who think they can do it). AND< if you've never done this sorta thing before you'll end up spending more on practice pieces and material than a new turbo manifold from a high quality company.

Fabbing a Stainless Steel turbo manifold easily doable IF you know how to: TIG weld very well, Prep the Stainless Steel itself properly, TIG weld Stainless Steel tubing properly, execute the methods used for TIG'ing SS turbo manifolds.

[vanish1]

DING DONG

http://www.jgstools.com/turbo/index2.html

[GSXRJJordan]

eww... log style.

On an untuned (no cams/headwork) engine, log style manis can spool up the big turbos faster, but equal length tubulars flow more and flow smoother at high rpm.

If I was gonna get that $180 kit, I'd save the welding costs and get an ebay top mount t3 mani.

[S13FREEAAK]

acestainless.com

1.5 Sch 10 304ss weld els.

Just take your time and you should be alright.

[CKAMC]

http://www.eng-tips.com/viewthread.cfm?qid=177536&page=1

good argument

[Matej]

You may find this guide useful.

http://www.autospeed.com/cms/A_2605/article.html

[rps13drift]

thanks for all the info fella's! Being cheap and using a ssac manifold and have it place my turbine housing on the master cylinder after three times of cutting and welding it is what inspired me to want to build my own! I would love to buy a full race or hybridynamics manifold but i am pretty broke for now(just moved into my own place). Heres some pics of the problem i having with turbo fittment! Its a gt35r .63 with v-band!

http://i8.photobucket.com/albums/a39/jadelynn04/100_0221.jpg
http://i8.photobucket.com/albums/a39/jadelynn04/100_02231.jpg

[bardabe]

U have money for a GT35R (if it's evne a REAL garrett turbo) but not enough for a manifold?...... i am speechless.

[rps13drift]

U have money for a GT35R (if it's evne a REAL garrett turbo) but not enough for a manifold?...... i am speechless.

Its a real gt35r! and i planned and purchased all my parts for my build prior to to moving out of my parents and into my own place! I just didnt plan for the exhaust manifold to be this shitty!

[zoototheyork]

that thing is to big, wow