potential problems with the ETD mani?

Information on the naturally-aspirated KA24E and KA24DE engines.
User avatar
fiznat
Posts: 5651
Joined: Sun Sep 15, 2002 10:15 am
Car: Grown up :(
Contact:

Post

so I got a disturbing email tonight from one of the guys who was in on the ETD manifold group buy. He didnt give me his real name so if you're on here, sorry Im not crediting you or whatever..

Quote »I just received my ETD KA turbo manifold and compared mine with Fiznat's pictures on NICO and Freshalloy. Outwardly, they are similar, but mine has some considerable uneveness on the interior; there is a gaping unwelded hole in runner #4 that opens into runner #3, and part of the #4 pipe intrudes on the #3 pipe exhaust path as it enters the collector. This would appear to cause quite a bit of uneveness of flow in #3 runner. Are all the manifolds similar? Also, the flange for the wastegate is too small for a Tial 38mm and will need some machining to fit.[/quote]Now, I am certanly not an expert on manifold design, so I thought maybe I could show you guys a pic of what he's talking about and maybe we can decide if it's a real problem or not.

Here's a pic of the collector. Sorry the pic is kinda crappy, I'll get a better one tomorrow in better light.



You can sorta see how the 2 runners to the left join together earlier than the rest of the collector..

Also about the wastegate, I REALLY hope that's not true. I dont know if anyone on here has either bought this manifold and has a WG to get a 2nd opinion on the fit, or maybe someone is from the Boston area and I can borrow your WG real quick, but that would be a huge problem if the flange was the wrong size.



Anyways like I said, I am hardly an expert on this- so I would really help if you guys could help me figure out if this is a real problem that I should worry about, or perhaps it's nothing at all...


User avatar
WDRacing
Moderator
Posts: 15983
Joined: Mon Nov 25, 2002 2:00 am
Car: 95 240SX, 99 BMW 540i, 01 Chevy Express, 14 Ford Escape
Location: MFFO
Contact:

Post

Its not the prettiest collector I've ever seen, but it look pretty good and functional to me. I'm not understanding the wastegate flange problem. Whats needs machining?

Brian

User avatar
bbandit
Posts: 183
Joined: Sun Jun 15, 2003 5:01 pm

Post

yea my manifold looks like that too...

but as for the WG flange.. it works find.. I tried putting my 38mm tial wastegate earlier into the manifold and it fits alright..

edit: If you are talking about the hole size on the WG flange, then yes, the WG inlet flange has a smaller hole diameter than my 38mm tial...

edit: ^^^ disregard what I said, read my post below.

TrunkMonkey
Posts: 3190
Joined: Sun Aug 04, 2002 7:48 am
Car: 2000 Lincoln Navigator

Post

bbandit wrote:If you are talking about the hole size on the WG flange, then yes, the WG inlet flange has a smaller hole diameter than my 38mm tial...
how much smaller?

-demetrius

TrunkMonkey
Posts: 3190
Joined: Sun Aug 04, 2002 7:48 am
Car: 2000 Lincoln Navigator

Post

i'm no expert on welding, but those gaps between each runner worry me. shouldn't they be welded? over time wouldn't they open up even more after constantly expanding and cooling?

-demetrius

User avatar
bbandit
Posts: 183
Joined: Sun Jun 15, 2003 5:01 pm

Post

I take that back...I checked it again this morning and I realized i didnt put the metal ring in last night when I test fitted my WG.

with the metal ring on the inlet flange, it fits perfectly fine.

User avatar
bbandit
Posts: 183
Joined: Sun Jun 15, 2003 5:01 pm

Post

demcj wrote:i'm no expert on welding, but those gaps between each runner worry me. shouldn't they be welded? over time wouldn't they open up even more after constantly expanding and cooling?

-demetrius


Yes, I thought about that too...That was the first thing I noticed about this manifold.But I kept saying to myself that I got it for quite cheap so Im not really complaining.I'm not sure how this manifold will hold up but we will soon find out since I am going to install everything in the middle of next week.Thats why I mentioned somewhere in this forum that Im planning to weld all of those stuff.. good thing my friend has a TIG welder.

I will keep you all updated as I go along.Hopefully everything will go smooth as planned.

TrunkMonkey
Posts: 3190
Joined: Sun Aug 04, 2002 7:48 am
Car: 2000 Lincoln Navigator

Post

bbandit wrote:with the metal ring on the inlet flange, it fits perfectly fine.
good. maybe the person who sent the email forgot the metal ring too.

one issue down, one more to go.

-demetrius

Nathan
Posts: 5629
Joined: Fri Mar 07, 2003 6:43 am

Post

What are these holes between runners I hear people speaking of? I demand PICTURES! Fizzy, get on that man :)

User avatar
WDRacing
Moderator
Posts: 15983
Joined: Mon Nov 25, 2002 2:00 am
Car: 95 240SX, 99 BMW 540i, 01 Chevy Express, 14 Ford Escape
Location: MFFO
Contact:

Post

They aren't holes in the runners Nate, they are gaps in the weld material right there in the first pic, I think thye though it was welded enough, but after grinding to remove excess bead they left the gaps. It could be rewelded easy enough to fill any gaps and then grinded to remove the weld material again.

Nathan
Posts: 5629
Joined: Fri Mar 07, 2003 6:43 am

Post

Ooooh, are we talking about on the inside of the collector where the runners meet? I just thought that the welds didn't have 100% full penetration, or hadn't been welded from the inside as well.

User avatar
WDRacing
Moderator
Posts: 15983
Joined: Mon Nov 25, 2002 2:00 am
Car: 95 240SX, 99 BMW 540i, 01 Chevy Express, 14 Ford Escape
Location: MFFO
Contact:

Post

Exactly...

vadem
Posts: 84
Joined: Thu Jul 10, 2003 2:58 pm
Car: Drifting like a mofeeger

Post

You dudes are way to picky, you should see my jgs logger. So what your 3rdrunner , will not flow perfectly, It really doesn't matter buddy.

User avatar
EazyBreazy
Posts: 2672
Joined: Sat Oct 18, 2003 11:19 pm

Post

when you put as much time money and effort into planning a full on turbo kit you want the best stuff you can get....some people are like that and i dont blame them. when i get back from japan and finish my kit up ill be like that too..

also that post is completely out of place why dont you do us a favor and stop that..we are trying to asses and possibly prevent any problems someone may have with this particular mani so that someday in the future it may be solved...so that in the future should you want to get rid of that log mani and go to.....oh say the edt mani.....you would have alll the resources to know if your mani was affected and if you dont know how to fix it, how to fix it.

generaly in short keep your garbage post out of a meaningful thread..wanna talk **** go somewhere else please because other people are interested in what these have to say

Projex240
Posts: 926
Joined: Sat Jan 04, 2003 9:52 pm
Car: Dogs , My RIDE

Post

ummmm---can anyone send me ome info on this mani so i can get a batter look at what it all about--ive heard of it, but never seen the mani in its entirety

User avatar
den240
Posts: 240
Joined: Sun Mar 21, 2004 9:11 pm
Car: 92 ca18det cnvt

Post

Projex, here is a good place to check here first:

http://www.etdracing.com/manifold.html#240sx

bruinbear714
Posts: 1159
Joined: Thu Sep 05, 2002 9:58 pm
Contact:

Post

I FINALLY GOT MY MANIFOLD.. and after initial inspection, the whole manifold looks ceramic coated, including the flange side... what do you guys think about sanding down that surface a little so it can mate with the head a little better?

The bigger issues are that internally, there are cracks, or intersections that have cracks to them...

Not only that, but the exhaust flow from the runner to the turbo is PARTIALLY BLOCKED in #3, as you can see in the pictures.

Looks like I'mma have to break out the dremel.

bruinbear714
Posts: 1159
Joined: Thu Sep 05, 2002 9:58 pm
Contact:

Post


TrunkMonkey
Posts: 3190
Joined: Sun Aug 04, 2002 7:48 am
Car: 2000 Lincoln Navigator

Post

i'm sorry, but that collector looks awful.

-demerius

User avatar
bbandit
Posts: 183
Joined: Sun Jun 15, 2003 5:01 pm

Post

yea it does.. but bruinbear's still looks better than mine...

User avatar
WDRacing
Moderator
Posts: 15983
Joined: Mon Nov 25, 2002 2:00 am
Car: 95 240SX, 99 BMW 540i, 01 Chevy Express, 14 Ford Escape
Location: MFFO
Contact:

Post

Great pics!!! Much easier to see the defects now. I hate talking badly about another company, but that mani didn't have any attetion paid to the little details after it was fabbed. The runner tubing entering the collector is awful...lol. I'm going to have to fab up my own tubular mani. I have never attempted anything that complicated yet. But I want to see just how difficult it is. Who knows maybe I'll be good at it.

On a plus side, those collector and gate flanges can be filled real easily. Not that you should have to, but it can be done.

Has anyone contacted ETD about the defects so they can atleast correct them on any future manifolds, and possibly move to correct the ones already purchased. I know I would if my work turned out to unsatisfy my customers. Perhaps a link to this thread as well, so we can all give posotive suggestions on how to fix said problems, not to bash them.

Brian

User avatar
C-Kwik
Moderator
Posts: 8070
Joined: Thu Aug 01, 2002 9:28 pm
Car: 2013 Chevy Volt, 1991 Honda CRX DX

Post

To be honest, I can see why it's hard to weld. Each of the tubes enters the collectors at different angles. Ideally, you want them to enter the collector evenly and at an angle that promotes flow through the turbo flange. While it's acceptable for funtional purposes for this type of collector, the cuts made to the pipes have become much more complex as a result and created hard to reach areas for welding.

It's not terribly difficult to put a little foresight into making a manifold well. This manifold (http://www.executivecleancar.c...x.htm) appears much nicer by comparison. And it was designed to replace the Rev-hard mani so the locations of the flanges were limited. While an equal length might be preferable, this manifold never fails to impress me from an attention to detail standpoint. Everything from good solid welds, to individual head flanges to progressively larger head bolt holes.

j-z
Posts: 2878
Joined: Mon Dec 01, 2003 4:26 pm
Car: 95 240sx

Post

looks like a ****ty design to me. how much did yall pay for this thing?

bruinbear714
Posts: 1159
Joined: Thu Sep 05, 2002 9:58 pm
Contact:

Post

I spent a few hours today cleaning up the internals with a dremel at collector #2 and #3... Didn't get it quite as clean as I would like for fear of making the walls too thin or eating into the welds.

My main concerns now are:

1) Is it okay to leave some of that steel exposed to the exhaust gas?

2) With all those uneven rough edges at the collector, I'm afraid that overtime a small piece will flake off and end up in the engine, or grind it's way through the turbine blades.




Naro182
Posts: 159
Joined: Sun Mar 16, 2003 2:09 pm

Post

i have a dremel at my house and was thinking the same thing. what did you use to grind that down? im sure if you went over it with a polisher you should be ok...

User avatar
C-Kwik
Moderator
Posts: 8070
Joined: Thu Aug 01, 2002 9:28 pm
Car: 2013 Chevy Volt, 1991 Honda CRX DX

Post

What concerns me more are the crevices where it wasn't welded all the way through. You just can't be sure how it lookes like in these crevices. With the heat the manifold will be exposed to these crevices become an ideal spot for cracks to form. Cracks like to form at sharp edges. Think of it like a fault line(earthquakes).

bruinbear714
Posts: 1159
Joined: Thu Sep 05, 2002 9:58 pm
Contact:

Post

Well, my smog was coming up so before I threw in the stock manifold and catalytic converter, I test fitted the manifold and turbo I got from cheapturbo. A couple more issues cropped up.

1) The turbo doesn't clear the power steering resevoir and I had to unbolt it to test fit the thing.

2) Its awfully close to the master cylinder and the line. There is about half an inch of clearance there.

Anyone else test fit their manifold? This was on a 97 S14.

brage
Posts: 145
Joined: Mon Sep 23, 2002 9:46 am

Post

BTW that isn't ceramic coating. Looks like high-temp spray paint to me.

User avatar
bbandit
Posts: 183
Joined: Sun Jun 15, 2003 5:01 pm

Post

mine fits perfectly. but then again.. Im using a T3 super 60.The manifold has been in the car for 2 months now...I got it to glow bright red once in a while too. Seems to be holding pretty good so far.we'll see how long this manifold will hold with 2 events (autoX and drift event) every month.

NX95240
Posts: 649
Joined: Sat Feb 07, 2004 4:51 am
Car: my KA-(sc61)
Contact:

Post

yea my mani looks like that to. they didnot take the time to weld them up i think . why would they build these things like that for any way?i just hope it hold up for a long time. hell i have enough money in this project now donot need to buy another mani..


Return to “KA24E / KA24DE Forum”