To make money....there is a market for these. I guess its safe to say that if BR was just in it for the money that he would have put these on the market back then. He did his testing and did not flood the market with a part that doesnt produce. I have to admit that shows integrity.

I am NOT a BR fanboy, although my RS has 70% BR parts. I like to use what works.....

 

Interesting to see the different opinions on the different O2 Housings.
I just want to try something different by going with the O2 Dump, and see for myself. There's too much controversy with it so at least this way I'll know for myself

Does anyone know the answers to the above questions??

 

Then why does he sell them for 1g's? https://secure.buschurracing.com/cat...roducts_id=421

 

Shearer makes excellent products. I am interested in why he would take the time to construct a o2 dump if the standard o2 gets the job done.

 

Paintballguy, do you want to be a sarcastic jerk or are you really looking for an answer? I will give you the answer, regardless.

1g/2g DSM's they stopped making them over 10 years ago. We built the dump tube 02 housing as far back as I'd guess around 1995'ish. In 1995 you could probably count the chassis dyno's in Ohio on one hand easily. The ones that were available were 2wd. In other words dyno work and testing when we developed many of those parts did not exist. We did what seemed to work and tried to back up any products with track results. The 1g/2g turbine housing is also shaped much differently which helps the exhaust to actually get out the 1-3/4"hole used for the dump tube. By the time we actually had our own 2wd Dynojet we were so far along most of the use for the dyno was to tune the RWD cars we were building running in the 7's and 8's. We didn't go back and second guess the parts we had already built.

With the EVO it is a different story. From the day we brought the first EVO to our shop, March of 2003, we had it strapped to the dyno and tested and have kept testing EVERY SINGLE part we produce and sell.

There's your explaination to your smart *** comment.

 

very informative. i was also contemplating this choice, as in my prior experience open dumps have always helped spool up and power. But the downfall was boost controll issues.

 

Ok obviously there are two schools of thought in regards to O2's (dump and recirc)..
Now which O2 recirc housing do ppl believe works best? I was also considering the Invidia but not too sure what other options there are... I know a fair few like the Megan O2 and some even rave on about the eBay housings.

I'm not sure what I should do now :S Keep the Tomei I've got atm, switch to an O2 Dump (Shearer etc.) or use the Invidia (recirc)???

Over here in Aus, most use the Tomei like I have (O2 and Down pipe), and the most popular after that is the Invidia paired up to a TurboXS 3" down pipe.

 

If you already have the Tomei O2 housing and downpipe I would leave it alone for the time being unless there is an actual reason (bent, has a hole etc...) to change it...

 

Well the main reason I wanted to change it was because the Tomei O2/down pipe does not bolt up to the stock cat. Because of this the previous owner cut the down pipe and rewelded the flange so that it fits the stock cat. The welding job was bad to say the least. When I put a hi-flow cat in awhile ago, I noticed a leak from the bad welds for the flange where the down pipe meets the cat.

I have a friend who wants my Tomei kit, so rather than fix the leak/reweld etc, I bought a TurboXS 3" down pipe (which is larger than the Tomei down pipe). I wanted to change to a new/better O2 while I'm at it since the TurboXS won't bolt up to the Tomei O2 anyway.

Should I just fix the leak?? and sell my TurboXS down pipe?
My car is also in need of a tune so I figured I may as well swap out the O2/dp for a bigger system, while installing the other parts I listed in my first post (LICP, EBC etc), then get a tune done after all that is sorted...

What do you guys think I should do??

 

haha thanks. I enjoy being a smartass. I'm just trying to decide on keeping the Shearer or going with your ss o2 housing.

 

The Invidia 02 housing did not do well when we tested it a few years back.

Ron's new 02 housing with the dump, I have not seen in person. I told him I didn't like them when he told me he was building them. I did see a picture and the largest problem with the 02 dump housings is the lack of an type of taper from the large open wastegate port into the small exit hole. I BELIEVE Ron has built a "funnel" into the inlet to the dump tube, how effective it is I do not know but it looks like he has tried to address the problem I have seen with the other dumps.

A friend of mine who also owns a shop/dyno has tested 3 seperate 02 housings with dump tubes. He did this without me having any clue, was looking for more power on his own EVO. He ended up writing me this huge e-mail to tell me about all the BS he went through to change housings, do the testing and in the end went back to the SS recirculated housing......I got a good laugh out of it.

 

hey Dave thanks for the good info

i tried buying your 02housing & ported manifold but you guys didnt have any on the shelf at the time, so i went with the invidia 02 housing & invidia manifold. how bad are the designing of those two parts should i see any gains from them? if you dont mind me asking for your opinion

 

Geeez!! I need an O2 housing and I don't have a clue what to do now!!!?? :S
Dave, have you tested the Tomei O2/downpipe by any chance? I think they're similar in design to the Megan (I'm not sure on this though), but a few people in Aus believe the wastegate outlet on the Tomei isn't large enough and can cause creep issues...

Also, whats your opinion on the dyno sheet thats been provided from the Shearer dump here - https://www.evolutionm.net/forums/ve...-released.html
After speaking with Danny - dmoevo (I think thats his dyno sheet?), he told me he had the Megan O2 housing before and he couldnt hold boost at all. He also has the Bushur downpipe and ETS LICP V2.

 

I think you can decide on one or the other:

a) Shearer O2 Dump
b) Buschur SS/ O2

I don't think you can go wrong with either, so much time and effort has been spent designing both. It's a win- win situation for you.

 

I guess they're my choices. The Buschur O2 is pretty much like my Tomei anyway isn't it? So no point getting that right?

Also, I recently found out that my ETS V2 LICP I have is the mild steel version and I don't want to use this on my car. Do you guys think I should get the stainless steel version off ETS or go with a different one??