Ok I know this is a well talked about topic in this forum because I have been reading posts after post. I just wanted to get an opinion from someone else on this forum. I have a custom made 420A 14b turbo manifold and had some problems when I installed it. It didn't line up like it should have as if it wasn't angled right on the block. It had a gap on the bottom that just didn't seem right as if it was worped or something. So I just took it off and put the car back to the way it was. I saw on here that someone actually attached a square flange(turbo) to the round flange on their stock header. I was wondering how that worked out because it didn't look that effective in keeping the exhaust gases in the pipe but that just me. I know there are a couple of guys on here that can make the manifold, but I don't really want to spend money on a new one. So I guess I have two questions.

What does everyone think about attaching a turbo to a stock manifold?

What should I do with this worped manifold? Can I take it somewhere and get it fixed/fitted right for cheap/good price?

well, i m building my turbo kit and I have been looking for turbo manifolds for a while...

you don't have too many options...

1 buy a flange, pipes and weld all that crap together....it will crack eventually....

2 find someone that welds better than you and tell him to do No 1....it will crack too, just later....

3 break the bank and get a Hahn one or equivalent

4 there are some on eBay for $200 shipped, but I don't really trust it

I ve been looking for one for the past month, after considering all these options, I went with #3... cause I don't want to have to fix things that require welding, simply cause I don't know how !

i personnaly would not spend time/money on that stock f*ckd up manifold you got...

Good luck with your setup

Quit your job
Sell your car
Get on a plane
Surf and party
Fall in love
Never come back...

Get a Hahn manifold. I wish I got one.

I eat emo kids for breakfast

1995 Eagle Talon (SOLD)
72' SuperBeetle
72' Standard Beetle
56' Deluxe Beetle

ok so how much does a hahn racecraft manifold cost and how reliable are they? Also doesn't it come with the 16g flange on it. Does that flange fit a 14b turbo?

http://hahnracecraft.com

-Chris
1999 Eclipse T-GS


2.4 Project is Officially underway

Originally posted by thedawg

Originally posted by GSGoinFast Yes they come with a mitsu flange, which means the 16g and the 14b will bolt up.

Um no. The 14b will bolt up but it will be sideways.

Originally posted by GSGoinFast I'm considering getting a manifold from www.thestreetsource.net though, A bunch of guys have his manifolds and they are good quality.

Yeah, GREEEAAAAT QUALITY.... Just buy an HRC kit or at least the turbo and manifold. You'll save so much time and money in the long run. If you think buying an HRC kit is "breaking the bank" then you SERIOUSLY should NOT be going turbo. The kit is a small fraction of the total cost.

-Chris
1999 Eclipse T-GS


2.4 Project is Officially underway

-Roman

ok so I was reading another post and I have to check to make sure this is right before I do it and look like an ass. They say that you have to leave the oil outlit line off and let oil drip out when you are first installing a turbo.... Can some one tell me why you are suppose to do this and for how long you let it drip if you are to do it? Also what happens when you jsut install the turbo with out doing this? Will it not do the same thing?

I was talking about the one that attaches to the block. I think it would be better to have it machined than to buy another one and play the chance game again.

_ _ _ _ _ _ _ _ _

96 Black ESi
91 Red TSI AWD (RIP)
02 WRX


"turnin wrenches for nine hours in the pouring rain, just to get the beast up and running again"

Aerospace Certified TIG welder for Precision Castparts in Portland, OR.

JoshSpair.com

My mistake on the HRC flange, I can't believe I never noticed that before.

-Chris
1999 Eclipse T-GS


2.4 Project is Officially underway

My custom manifold has never cracked

Joel Baldridge, ASE Certified Master Technician, Audi Certified Expert Technician

2016 WRX STi Limited (current)
2001 A4 1.8tqms (donated)
1991 GVR4 #1933 (sold)
old.dsmregistry.com/detail.php?carid=218 (dismantled)

Ok so this is becoming the biggest pain in the ass when it comes to this freaking turbo system. I can not find a shop around here that has a fly cutter. I mean I live in Warrenton, MO which is right outside of the STL and I still can't find anyone who is will to mill my freaking exhaust manifold. If you are from the STL area, can you tell me a good place to go? please......

-Chris
1999 Eclipse T-GS


2.4 Project is Officially underway

just wondering, but are they open on the weekends? And thanks, I might end up making that drive.

-Chris
1999 Eclipse T-GS


2.4 Project is Officially underway

Thanks for all of the help.

Quit your job
Sell your car
Get on a plane
Surf and party
Fall in love
Never come back...

So I had a header put together and I was wondering what are the chances that it was actually got worped? I know GSgoinfast custom made his and that is what I was going off of. so I am not to worried about the quality because I am just trying to get my foot in the door and when I find that the whole system works I will begin to tweak it and upgrade shit after a while. Did anyone who custom made their manifold have a gap on the bottom when they tried to match up the holes and put it on? If so how much of a gap and I guess if you did't that means that I have to get that freaking piece machined flat.

-Chris
1999 Eclipse T-GS


2.4 Project is Officially underway

Yeah, I had my manifold decked (milled with a fly cutter, flat) at both flanges before it went on my car.

Joel Baldridge, ASE Certified Master Technician, Audi Certified Expert Technician

you can buy the star manifold from slow boy racing too. it's beefy.



http://www.slowboyracing.com/more.php?id=1346&

-marc

I will have to try that when I get home the whole glass and manifold trick. But thanks for all of the help.

Yeah, the local machine shop only charged $20 to deck both flanges, well worth it and needed.

Joel Baldridge, ASE Certified Master Technician, Audi Certified Expert Technician

I don't understand why there isn't a production tubular, high grade, turbo manifold for the 420A. I mean, all it takes is a few weeks at a reputable place for some design.

I'd be willing to bet that there is someone willing to invest some time if enough people scrape some money and make a group buy.

For those who say that they crack, not really. I've had my Full-Race manifold on my civic for over a year now, and another before that with the previous owner, and it has not cracked yet. They are expensive, but worth it BANME!, but there are other cheaper welders or fabricators out there.

Trully, I think HRC should make thiesr a tubular style mani and not the log style. Oh and please, do not give me that crap that we don't need one and that power gains are not worth it.

I know I saw some guy here with one, and it looks good. Was it a GT30R with it too? I would love to see a 2gnt with something other than your typical 20g or 16g or the classic t3/t4 with whatever housings. How about a nice GT35R? Fitment issues?

Anyway, it has been a long time since I visited the board. I'm starting to build a 2gnt, again, but this time the right way.

FWIW

Stainless tubular for 420A.

http://cgi.ebay.com/ebaymotors/420A-TURBO-Manifold-Stainless-Header-Eclipse-Neon_W0QQcmdZViewItemQQcategoryZ33631QQitemZ8065396086QQrdZ1QQsspagenameZWDVW

There is a guy on Neons.org that is selling his used HRC manifold along with a 20G for around 600-700$. I believe the screen name is Omnious. Hit it up if you are serious.

-K-

That looks like thin assed manifold and of very poor design. I bet that mani will crack right away.

mine should be done this weekend or sometime in the very near future....i will post it up when i get it done

so where are the log manifolds cracking? Im assuming you're talking about the you buy a flange and some Weld-El's and weld it yourself manifold. I only ask because this is what I'm doing and if there is a way to add some structural support to the manifold and prevent this cracking from happening then I'm all for that.

Representing the Central Cali chapter of 2GNT!
(I think I'm the only member )

They are talking about the log but there is a way to get around it cracking. If you Make sure that the wall thickness is 1/8in or a little more then you should be good to do. And make sure that you have a professional TIG welder with a rep do it. Nothing against doing your own weld or for those people who did do it but I have heard stories both ways. But the person who pays the welder usually ends up with the better deal out of all of the storise I have heard. Other people may not think the same but this is what I have heard from people who have done it both ways.

There are lots of different places the manifold can crack. Mine has got a hairline crack where the turbine flange meets the runner, and another smaller one where a runner goes into the head flanger. Anywhere the manifold is welded can split.

As far as structual support for a log manifold, there isn't much really, unless you use the stock downpipe bracket and make a bracket to connect your custom downpipe to it. That would help share the load of a very heavy turbocharger and all the assorted piping... but if the welds are crap to start with, this won't fix the problem.

If you are making it out of mild steel, using thicker piping (schedule 40) will help prevent cracking even with a long tube design. If you are making it out of stainless and are a competent welder or know a very good welder, you can make it out of anything as thick or thicker then 16 gauge.

1995 Eagle Talon ESi

so the cracking comes more from the weight of the components hanging off the manifold then from heat cycles? If that is what your saying then I'll just make a couple braces and cross my fingers. I was thinking about running beams along the primaries (yes, I just said primaries in reference to a lag manifold, loller!) but bracing the turbo and downpipe sounds easier.

As a side note, for people that do decide to weld their own manifold, clamping the flange flat onto a giant, thick piece of steel will do wonders in dissapating the heat away from the weld instead of localizing it, thus preventing the need to have the flange machined flush latter.

Representing the Central Cali chapter of 2GNT!
(I think I'm the only member )

I purchased the Turbonetics manifold from slowboy racing last week, waiting for it to get here.

-Chris
1999 Eclipse T-GS


2.4 Project is Officially underway