Quick O2 housing question!

[BOC Jason]

I just bought a Evo 16g. I have a small 16G right now..
Am i going to need a Evo o2 housing??
I also have an Apexi downpipe..

thanks guys

 

[97gstjosh]

No you dont neccessarily have to get an EvoIII o2 housing.
You can get anyone you want
I would get a new one though instead of using the stock 2g o2 housing.
Im assuming thats what your using since its not listed on you parts list.
If Im remembering correctly the EvoIII o2 housing works with the Apexi downpipe too

 

[El Cuervo]

An evo3 o2 housing will not work unless you bought your dp with the flange to match the evo3 o2 housing angle. If you bought your dp for your stock style o2 housing flange, then any o2 hausing that you buy that is made for our cars will fit with the exeption of the evo3.
The evo3 o2 housing flange to dp angles at a differently.

 

[BOC Jason]

I see. We'll does anybody have a picture of thier downpipe connecting to their O2 housing? Maybe even one connecting to an Evo housing as well?

A thousand "Thank You's"

 

[97gstjosh]

An evo3 o2 housing will not work unless you bought your dp with the flange to match the evo3 o2 housing angle. If you bought your dp for your stock style o2 housing flange, then any o2 hausing that you buy that is made for our cars will fit with the exeption of the evo3.
The evo3 o2 housing flange to dp angles at a differently.

Thats not completely true.
There are plenty of ppl on here running the megan racing downpipe
with the evoIII o2 housing and it works perfectly. I cant remember about apexi though. There was a thread on here somewhere. Your best bet is to get a new downpipe if you plan on running the evo housing.
Go here for the downpipe:
Eclipse Exhaust System Upgrades

 

[romeen]

Like Josh said, you can make most DP's work with the EVO3 O2 housing. But it does put stress on the flex section. I have been running a Buscher DP (for stock 2G) for a few years with the EVO3 housing and it is still holding up. Having said that, I have my RRE EVO style DP ready to go on soon.

 

[El Cuervo]

You would need to bend the or cut and re-weld your Megan racing dp, in order to make it properly mate with the evo3. have you tried it yet? I have personally tried it and It and it did not work. The megan racing dp is 3inch and it barely fits with the stock o2 housing. If you try to just forcefully make it fit with an evo3 o2 housing, the flex section will rub against the oil pan and the flange nearest to the drive shaft will rub against it. At least this is on a 1gdsm awd. I'm not sure about the 2g. But in any case, to make it fit like it should, you would need to properly bend, tweak or cut and re-weld your dp. This is assuming that it will go on a 3inch dp.
To the opener: I don't personally have any pics of o2 housing to dp. Sorry. But search on the Photo gallery. Under engine bay shots. I'm sure you will find something.
Just buy a good well made o2 housing from Straight Line Specialties or from Punishment racing. You can go re-routed or dump tube. I've tried many of them already and ouf of all of them, I really like punishment and SLS. Perfect fit. If you really want the evo3 o2 housing, then have your dp flange angled to accept it.

Edit: Well, it seems that the 2g have it different. In that case, then do what romeen and 97gstjosh say. I'm basing on my experience on a 1gAWD and megan racing 3inch exhaust.

 

[DGajre777]

I just bought a Evo 16g. I have a small 16G right now..
Am i going to need a Evo o2 housing??
I also have an Apexi downpipe..

thanks guys

No, don't get the Evo o2 housing. Get a 2G o2 housing if you have an Apexi downpipe. As said before, the angle on the EVO o2 housing is greater than the angle on the 2G o2 and causes strain on the downpipe flex. If you insist on getting the evo o2 housing, get a downpipe made for the evo o2 housing sold by RRE.

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[El Cuervo]

No, don't get the Evo o2 housing. Get a 2G o2 housing if you have an Apexi downpipe. As said before, the angle on the EVO o2 housing is greater than the angle on the 2G o2 and causes strain on the downpipe flex. If you insist on getting the evo o2 housing, get a downpipe made for the evo o2 housing sold by RRE.

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Thanks for the clarification DGajre777.

jorge.

 

[BOC Jason]

That was a perfect picture! I'm not exactly sure what O2 housing is on my car or what style of DP mine is. The only reason i'm doubting either is i'm not sure how sung the DP is to the housing.. i just noticed this not to far back..

<a href="http://s258.photobucket.com/albums/hh276/JasonEyestone/?action=view&current=DSCN0338.jpg" target="_blank"><img src="http://i258.photobucket.com/albums/hh276/JasonEyestone/DSCN0338.jpg" border="0" alt="Photobucket"></a>
WTF

Also, on the side.. Does anybody know all the crush washers needed for a turbo swap and their sizes? Thanks!

 

[romeen]

Like the OP, Josh and I both have 2G FWD's. I don't know if you could make it work on other models. Regardless, I think everyone is in agreement that IF you decide to go with an EVO3 housing then it is best to get a DP designed for it or just stick with a ported 2G housing.

Edit: You realize that your missing a DP-O2 housing bolt, right?

 

[JusMX141]

Your Small 16G's turbine housing outlet is 2" (unless it's ported), which matches the 2G o2 housing perfectly.

The EvoIII 16G's turbine outlet is 2.5", which matches the EvoIII o2 housing.

If you don't use the EvoIII o2 housing (or port your 2G housing extensively, you'll have a 1/4" lip the whole way around the o2 housing that the exhaust will not flow over easily.

 

[BOC Jason]

Like the OP, Josh and I both have 2G FWD's. I don't know if you could make it work on other models. Regardless, I think everyone is in agreement that IF you decide to go with an EVO3 housing then it is best to get a DP designed for it or just stick with a ported 2G housing.

Edit: You realize that your missing a DP-O2 housing bolt, right?

Yes! I'm aware =/ I need to find a bolt of that size.. But can't wayone tell by that pic (probably not) if it looks like an evo style DP or if it's just off because of the missing bolt..
Im pretty sure it's a regular DP already but i'd feel better if someone could tell for sure. Stupid missing bolt makes me think to much

Your Small 16G's turbine housing outlet is 2" (unless it's ported), which matches the 2G o2 housing perfectly.

The EvoIII 16G's turbine outlet is 2.5", which matches the EvoIII o2 housing.

If you don't use the EvoIII o2 housing (or port your 2G housing extensively, you'll have a 1/4" lip the whole way around the o2 housing that the exhaust will not flow over easily.

And yes, i'm aware of the difference. I just got a Evo 16G though so now i was debating on getting the Evo O2 housing as well.

Is it going to make a difference if I run an Evo 16g with a regular O2 housing? =/

You guys are a bunch of help

 

[romeen]

But can't wayone tell by that pic (probably not) if it looks like an evo style DP or if it's just off because of the missing bolt..

I can't tell just by looking at it.

Is it going to make a difference if I run an Evo 16g with a regular O2 housing?

Ideally, you don't want any portion of the exhaust going from a larger diameter to a smaller diameter. It will create a restriction which will hurt flow. I really can't say how much of a performance loss it will cause but there will be a loss.

 

[BOC Jason]

Hmm.. looks like i'll get the evo housing and a evo DP.
I have a Full greddy catback exhaust...is there going to be an issue trying to hook up an Evo DP to the greddy exhaust?

Because if it's going to involve more than getting the Evo O2 housing and DP then i'm going to probably just port my stock O2 housing... Thanks guys!

 

[DGajre777]

Hmm.. looks like i'll get the evo housing and a evo DP.
I have a Full greddy catback exhaust...is there going to be an issue trying to hook up an Evo DP to the greddy exhaust?

Because if it's going to involve more than getting the Evo O2 housing and DP then i'm going to probably just port my stock O2 housing... Thanks guys!

RRE downpipes "are built to bolt directly to an Espelier, RSR or Apex N-1, RS, WS or Dunk exhaust systems only. If you have another brand system with a small first section, you can modified your exhaust to fit by cutting out the small first section of your exhaust. Then you will need to weld in a 3" piece of pipe and one of our flanges. Just ask for a free flange when you order the DP." - Source - RRE.

Port your o2 housing instead of messing with the evo o2 housing and a EVO downpipe. You could just get an o2 housing for $159 shipped rom Punishment racing and not worry about porting your stock o2 housing. Blank

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... and this will be a direct bolt on to your Apexi downpipe.

 

[OddNotion]

From the RRE website regarding their EVO3 O2 downpipes:

"These down pipes are mandrel bent and have a large diameter flex section. They are built to bolt directly to an Espelier, RSR or Apex N-1, RS, WS or Dunk exhaust systems only. If you have another brand system with a small first section, you can modified your exhaust to fit by cutting out the small first section of your exhaust. Then you will need to weld in a 3" piece of pipe and one of our flanges. Just ask for a free flange when you order the DP. High flow catalytic converters can be added to the down pipes to make them "more" street legal."

Essentially, your exhaust must be 3" at the CAT flange. Even the mighty Thermal R&D 3" has a 2.5" flange so it can bolt up to your stock cat. I would assume they (RRE) put the flanges in roughly the same location (lengthwise) as the factory flanges. My Magnaflow High Flow Cat was like 2-3 inches shorter than a factory cat, so I had Midas weld in an extension. Just be prepared to modify things. Definitely ask RRE.

Also: The RRE downpipe uses an Apexi style flange, so if you don't you might have to cut yours off even if your exhaust is 3"
DGajre777, we had to be writing this at the same time........

 

[DSMunknown]

I see. We'll does anybody have a picture of thier downpipe connecting to their O2 housing? Maybe even one connecting to an Evo housing as well?

http://www.dsmtuners.com/forums/newbie-forum/258514-o2-housing.html
http://www.dsmtuners.com/forums/bolt-tech/274606-mr-o2-housing-vs-evo-iii-o2-housing.html


In case you're wondering, I did take updated photos of my Evo 3 O2 housing and RRE "Evo Style" downpipe after the install. Just haven't gotten around to posting them up yet. There still is a great deal of room for the Evo oil filter to breath.

 

[BOC Jason]

That's exactly what i was looking for guys. Thank You!

 

[97gstjosh]

No prob
If you get the downpipe from RRE you will have
to cut off the flange on your Greddy exhaust and weld up one of theirs
to make it work. They throw one in if you ask though so its all good.

 

[BOC Jason]

I have an Apexi down pipe though.. =/

 

[97gstjosh]

I mean if you get the EvoIII o2 housing and get the RRE downpipe sorry for the confusion

 

[BOC Jason]

ohh haha ok!
Just when i thought i had it all figured out you mess it all up

 

[97gstjosh]

yeah you know how it goes.
Any idea of what your getting?

 

[BOC Jason]

The RRE O2 housing for sure.
After that (given my budget) a 190 Walboro, 650 injectors, and a Uego Wideband is next