OBX tuner turbo manifold

[91eclipseDSM]

Hey has anyone used this manifold before? i couldn't find a write up on them, i must suck at Searching o well, i thought i'd ask thinking about getting to but don't wanna get it and it be junk, so if anyone has used this before please let me know your opinions.

OBX TUNER DSM TURBO MANIFOLD ECLIPSE GSX GST 4G63 | eBay

 

[LarryJoe]

From what I hear, ebay manifolds tend to crack pretty quickly. But it's up to you. Just don't be surprised if it does. There is nothing really wrong with the stock one except the ugly look. Look into a FP cast manifold for a good upgrade.

 

[NHerron]

I believe the cheap manifolds crack due to the combination of weight, vibration, and heat all at once. It's even worse when the DP isn't held up with a bracket

I've seen a thread similar to this before and it would crack in various places. Even rewelding after so many times and adding a support to make things a little more rigid it still didn't pan out so well

Not saying ^OBX is bad, I honestly don't know but that's the main concerns I've seen/read so far

 

[xxNocturnalxx]

Well, I'm ashamed to say I run a OBX ram horn, granted it did cost over $400 so the quality is probably a little better then the one you posted. I had a DNP but couldn't use because it didn't give me enough turbo clearance, the OBX angled the turbo out away from the block and fit perfectly for my set-up so I stuck with it. I've had it on for a couple years now with no issues.. yet

 

[My1GLaser]

I had one and it cracked pretty bad within a couple weeks. The one I had was really thin walled. Like schedule 10 or something. Thinner is a lot cheaper when it comes to SS. I wouldn't want one thinner than Sch 40 personally. I rewelded it and sold it for dirt cheap. It looks like they changed the design some and tried to address the cracking issues.

I just did a quick Google search out of curiosity and it seems like 321 SS has a Titanium alloy for better heat resistance, and resistance to cracking in the heat affected zone during welding and high heat service. 1500* F is a very normal temp to see right at the runner of the exh mani. Ive seen 1550-1600* during an extended pull.

Bottom line is that it is more resistant to cracking, but you are at the high end of the service temp range for 321 SS and probably will exceed it sometimes. It will most likely crack unless it is thicker than it used to be and reinforced well. (I don't see any reinforcements at the runner to flange area)

IMO, find a used FP mani for the same price as the OBX one or spend an extra $100 and get a new one. My FP mani did crack above the turbo mounting flange after 2 years. The HX-35 is a lot heavier than close to stock sized turbos. Support your turbo from below with the stock bracket or make another one to fit your application. If you support the weight of your turbo well, then you might be able to run that one without it cracking. It doesn't hold heat well though, so your underhood temps will probably rise and you could end up with slightly slower spool.

 

[gsxtreme1987]

I just bought one of their manifolds. Mitsu flange and 38mm wastegate flange, this was the only manifold i found with those options.

It looks like decent quality, i just installed it so we'll see how long it lasts.

OBX does offer a lifetime warranty... not sure if they actually honor it but i guess ill find out.

 

[compression]

that manifold is 100% identical to the old pacesetting manifolds they used to make for our cars.

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The one you linked, the obx, seems to have a much better material and welds, mine cracked where the #1 runner met the collector. I got it fixed, very nicely tig welded. then it cracked on another runner.

 

[boost97gst]

My vote is forget that mani, pick up a used 2g and port it. Thats almost as good ported as an FP mani, from what ive read. Save ya a few bucks and you can still keep the perfect stock turbo position.

damn, i just looked at your mod list. Spend the money elsewhere. You will see hardly any gains with this mod. Put the money towards link, then upgrade fuel,FMIC, and THEN start looking at intake or exhaust manis. Even before that id say get a 3" turboback, then a stock 2g mani ported and youll be much happier. This will be a completely cosmetic upgrade IMO.

 

[91eclipseDSM]

My vote is forget that mani, pick up a used 2g and port it. Thats almost as good ported as an FP mani, from what ive read. Save ya a few bucks and you can still keep the perfect stock turbo position.

damn, i just looked at your mod list. Spend the money elsewhere. You will see hardly any gains with this mod. Put the money towards link, then upgrade fuel,FMIC, and THEN start looking at intake or exhaust manis. Even before that id say get a 3" turboback, then a stock 2g mani ported and youll be much happier. This will be a completely cosmetic upgrade IMO.

I've gotten some more mods since then those are the mods I bought the car with I now have
Ecmlink v3 lite
Vr speed FMIC
MBC
Wideband and few other supporting mods

 

[JusMX141]

http://www.dsmtuners.com/forums/tur...ks-similar-erl-placement-4.html#post152796437

Looks like it will last 500 miles, give or take 20.

 

[stacked1G]

i would stray away from a tubular mani(expecially an ebay one), expecially if its your daily driver. As you will put alot of miles and consistant hot temps to it, causing possible cracking to happen sooner, or lots of re-welding to it.

you would be just as happy with a ported 2g mani. you can pick one up for 25-65 dollars. they are also known to last a long time and are good to support plenty of hp before being a restriction! i just CNC ported my 2g mani and i LOVE ITT!

 

[lowboost13]

The OBX tuner manifold is actually very good quality. It is one of there overlooked products, they added a few supports to the bottom to secure it, and there welds are amazing. I took mine into tech, because my teacher is a very good welder to see what he thought of the welds, or if he could make them stronger. He said that they were very strong and good looking welds. I'm currently using mine with no cracks, no rusting,no fitment issues. The only thing I can see wrong with it compared to others is its small ports, but that can be fixed with a dremel. (which is what I did) goodluck!

 

[95_gsx_tuner]

Had a friend that used an OBX manifold and it lasted about a month before it started to crack. A ported 2g mani will last for a good while. I'm currently running a ported 2g manifold with my compound setup and it takes a ton of abuse with zero issues.

 

[Archer Fabrications]

I just bought one of their manifolds. Mitsu flange and 38mm wastegate flange, this was the only manifold i found with those options.

It looks like decent quality, i just installed it so we'll see how long it lasts.

OBX does offer a lifetime warranty... not sure if they actually honor it but i guess ill find out.

DNP has a mitsu flange one that comes with a 44mm wastegate provision... use a 38mm adapter thats what im doing and works great! DNP has turbo support brackets that attach to the Head flange also.

 

[gripngodsm]

I use an ebay manifold on my 1g and made around 400awhp on the dyno with it so far and its been on there a few thousand miles. No problems at this time other than the finish has tarnished badly.

 

[crash89]

I had this Ebay manifold on my spyder for 3 years and now it is on my 1g with my 20g bolted to it and have never had a crack in it. I daily'd the spyder those three years and now its a summer daily. The 1g is my winter daily. So, not ALL ebay manifolds are junk. I do think that some are. I probably just got lucky.

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[SoNew]

I had this Ebay manifold on my spyder for 3 years and now it is on my 1g with my 20g bolted to it and have never had a crack in it. I daily'd the spyder those three years and now its a summer daily. The 1g is my winter daily. So, not ALL ebay manifolds are junk. I do think that some are. I probably just got lucky.

491511[/ATTACH]"]

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I had that same one for about 2 years, no issues, just looked ugly as hell after a few months.. Just recently went back to cast because I got a good deal on a ported 2g manifold. The only issue was the flange to the turbo warped and leaked a little bit, even after installing a new gasket and studs and tightening the hell out of them... Good luck