o2 dump. Bye bye boostcreep.

[trapspeed]

I creep from 15-20psi so I am deciding to go with an o2 dump. I will be getting an internal wastegate 50trim in about a month so the noise will not be a big deal to me due to the longer spool up of the 50. Anywho.

My current exhaust mods are Apexi n1 3" catback exhaust bolted up to a RRE downpipe. Now, does the o2 dump bolt up to the turbo outlet and the downpipe? It just replaces the o2 sensor housing? How easy of an install is it?

Also, who makes a respectable o2 dump?

Thanks in advance for the help.

 

[miteclgst]

The O2 dump is just an 02 housing with a wastegate tube that vents into the atmosphere. So yes it does replace the entire 02 housing.
I understand that you creep now but what makes you think that the new turbo will do the same? The only reason I ask is because different turbo designs (different waste gate divider designs I should say) will channel exhaust gasses differently.
The dump tube will connect up directly to the turbo exhaust outlet flange. The turbine exit will go directly throught the bend and into the dP/exhaust the wastegate opening will channel directly through the dump pipe and into the atmosphere. Here is a pic of mine, I know mine will differ because it is a 16g turbo

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[DSMnewbi]

nice welds mite

 

[miteclgst]

nice welds mite

That was just tacked together to check the fit. When it was finished the entire inside seam was welded along with as much of the outside as we could get the tig torch into. I then cut down the welds on the inside to give a nice smooth transition from one part to the other. I wish I got a final pic of it. It was sent out for Jet coating and then I was in a mad rush to get it all back together so I didn't get a chance to snap a pic.
You couldn't imagine how much time went into fitting that thing up and getting everything to lay right.

 

[trapspeed]

So an o2 dump will not fit diff turbo applications. Ones for 16gs and 50trims are diff?

 

[Batty200]

So an o2 dump will not fit diff turbo applications. Ones for 16gs and 50trims are diff?

If you use a bolton housing MAKE SURE TO ORDER WITHOUT A CUT DIVIDER!!! Also I have an O2 dump housing for sale.


Later

 

[ikickuintheball]

So an o2 dump will not fit diff turbo applications. Ones for 16gs and 50trims are diff?

It will as long as the turbine housing is a mitsu housing (or a housing made up just like one).

 

[Rick4g63]

I am not being a stickler, but some state have emission control taht may vary, but the O2 dump tube setup are legal for track use and off road use only

This is mach v setup. nice.
http://www.machv.com/mavpoo2hoa.html

This one is stainless steel:
http://www.machv.com/stainsteelo2.html

I have heard an O2 dump tube setup on a talon with a T-04 and it is loud as heck.... whoooo weeee!!!

 

[DSMnewbi]

VERY VERY loud and VERY illegal in Cali.

 

[Rick4g63]

DSMnewbl, are the exhaust noise abatement enforced? I read that in socal, you can be pulled over for a loud exhaust, and a decibel noise meter is used where the officer stands 5 ft from the vehicle and at idle and the meter must register an enforced decibel level...... bumber

 

[DSMnewbi]

A screamer pipe is only loud when you're on the boost, idle should be fine. Emissions wise, I'd think you'd get fried for it.

 

[Rick4g63]

with a dump tube, ported turbine housing and exhaust manifold, 3 inch turbo back, you should eliminate boost creep altogther.

But an external wastegate also "helps" to reduce boost creep too.

 

[blcknspo0ln]

I think he's saying dont get an o2 dump with a cut divider

 

[Scrymerr]

I think he's saying dont get an o2 dump with a cut divider

I'm sorry, you are right. I misread that!

 

[Coup D E'Tat]

I cut a hole in a stock 2G O2 housing as per the write-up on this site, and it eliminated creep entirely on my non-ported 14b, non-ported O2 housing, 3" cat-less exhaust set-up. I could run 11 PSI no problem.

Punishment Racing makes nice, affordable O2 housings. People will complain about the welds not being pretty and lots of other things, but they do what they're supposed to, and work perfect. I have seen one in person, and I think the welds are fine.

 

[MADSPEED]

I have a punishment racing. No the welds are the best like on teh o2 bung but it is a decently nice piece for $150. you don't need beatiful welds on a o2 like you need on a maifold anyways. GET IT....I like the look when some ones jaw drops when your wastegate opens and it sounds like teh pits of hell opend up.

 

[RU2SLOW?]

There's a guy on Ebay from Cali named Nick- his user name on Ebay is "nsindustries"- who makes really nice DSM o2 housings, especially for the price. I ordered one from him not too long ago and was pretty impressed with the build and quality.

 

[trapspeed]

I was just looking at those. It is coated black? Pretty cheap as well. How is yours holding up? And how was their cust service / shipping?

 

[92awddsm]

There's a guy on Ebay from Cali named Nick- his user name on Ebay is "nsindustries"- who makes really nice DSM o2 housings, especially for the price. I ordered one from him not too long ago and was pretty impressed with the build and quality.

http://cgi.ebay.com/ebaymotors/ws/e...ry=33742&item=7946842587&rd=1&ssPageName=WDVW

I just ordered one from them also. Excellent price and quality looked good in the pic. I will let everyone know how well it is built and works after I get it. I am also going to be using it on the new 60-1 I ordered last week.

 

[trapspeed]

that o2 housing will fit on the 60-1?

which 60-1 did you go with?

 

[miteclgst]

I think that taking the "sound" aspect of the 02 housing into consideration is much more important that the emissions aspect. Everyone knows that they aren't legal in states with emissions laws, all that takes is common sense. The 02 dump has a very distinct- aka loud - sound. This is some peoples' cup of tea, while it isn't others. When I was cosidering my 02 housing project I searched this forum and read as many posts about them as possible, one thread even had some sound clips.. as a matter of fact here it is http://www.dsmtuners.com/forums/showthread.php?t=36305 When considering what material you want to go with there are a few schools of thought.
1) Stainless Steel - This will undoubtedly be the highest price 02 housing because, 1) the material is expensive, 2) the welding is labor intensive. These housings need no corrosion coatings applied to them because the metal itself provides it's one defense agains corrosion. MOST stainless steel units are TIG welded this ensures a strong weld. However there are ways to use a MIG welder to weld stainless so make sure you know what kind of welding is used to make the part.
Many people feel that these are top of the line, one thing that I haven't heard anyone mention is the dissimilar metals. The flanges are made from mild steel and the tubing from stainless. This metals can be welded together but their heat expansion properties are different. This is brought up a great deal of the time when tubular headers are discussed. The dissimiliar metal expansion can result in cracking welds later down the road. Just some food for thought.
2) Mild steel - there are a variety of these on the market from the very cheapest - Punishment Racing - to some of the most expensive. What will more than likely be the deciding factor between expensive and cheap is the type of welding used to couple the parts together. The cheaper units will be MIG welded together, this sort of welding will keep the parts together but it dosn't allow for the strongest welds, this is because the concentration of heat is spread across both the tubing and the flange. With the tubing and the flange having very different thicknesses this results in a flange that has ample "weld penetration" and a flange that does not.
The more expensive units will be TIG welded. This sort of welding uses a torch to concentrate the heat on the thickest part. This sort of welding requires more skill than MIG and requires much more time to complete the same length of weld. This sort of weld ensures ample penetration in both materials.
Mild steel will require some sort of coating to keep it from corroding. Many parts are simply sprayed with rattle can spray paint and sent out. This paint will not hold up to the temperatures that these housings will reach under WOT conditions. The only lasting alternative is jet-hot coating. These coatings come in several max temperature configurations, from 1600*F to 2450*F. They are impregnated in the metal and are gauranteed for life. Jet Hot coatings will coat your housing for around $50 plus shipping both ways in their sterling silver coating which is rated to 1600*F. For $75 plus ship they will coat it with their 2000 line coating which will with stand 2450*F (The melting point of metal)
I wouldn't go for an 02 housing that is terribly cheap, they will crack and fail in due time. I would take craftsman ship and fit into consideration. Whatever you do is your choice, good Luck

 

[RU2SLOW?]

I was just looking at those. It is coated black? Pretty cheap as well. How is yours holding up? And how was their cust service / shipping?

It came coated black as shown in the picture. Unfortunately, I haven't had a chance to put mine on yet so I'll let you know how it is when I finally get it bolted up. From what I understand a bunch of people from Cali are running them and are very happy with them- I guess they know Nick personally and a few people on here vouched for him. Nick was great with responding to emails- he always responded within a day, really cool person, and he emailed me when he received the money for the housing and when he shipped it so I had an idea of when I'd receive it.

 

[miteclgst]

There's a guy on Ebay from Cali named Nick- his user name on Ebay is "nsindustries"- who makes really nice DSM o2 housings, especially for the price. I ordered one from him not too long ago and was pretty impressed with the build and quality.

One thing I would consider with those housings... The dump tube is very short, this will probably mean that the front of your engine will be covered in soot. I would consider something that has a longer dump tube.
I know mine is sort in the picture but when I did a test fit I made it just as long as the dp up to the bend that goes under the oil pan, this will direct the soot from the front of the engine to underneath the car.
Just a thought. Obviously it wouldn't take much work to weld a longer leg on that if the buildup becomes a problem.

 

[DSMnewbi]

I think that taking the "sound" aspect of the 02 housing into consideration is much more important that the emissions aspect.

Soon as you get a $10,000 fine for some little thing, you'll rethink it.

 

[trapspeed]

Who said it was 10,000? I thought it was more like 2?