Custom O2 Housing - Mazda MX6 Forums: MX6 Forum
Mazda MX6 Forums: MX6 Forum User Control Panel
 


» Auto Insurance
» Featured Product
Wheel & Tire Center

Go Back   Mazda MX6 Forums: MX6 Forum > 1G MX6 (88-92) > 1G MX6 General > 1G MX6 Other Performance
Register Home Forum Active Topics Garage Garage Photo Gallery Arcade Mark Forums Read Auto EscrowAuto Loans

Mx6.com is the premier Mazda MX6 Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools
Old 6-22-12, 18:26   #1 (permalink)
  Total: 17 Power: 5
 
Join Date: May 2007
Location: Lansing, MI, IN, USA
Age: 31
iTrader: (0)
Custom O2 Housing

I have a friend making me a custom O2 housing for my '89 GT and it's actually coming along nicely.

The custom O2 housing looks very similar to the ones made in the past with a divorced wastegate pipe. This will bolt up in the OEM location and enable me to keep my A/C if I still had it and will be 2.5" vs the stock 1 7/8".

Here are the bends being used:


Here is the jig made off the OEM O2 housing:





Here is the start of the new custom O2 housing:


All it should need now is some clean up and an O2 bung. The wastegate tube isn't as graduated as I anticipated, but I think it looks really good.








What do you guys think?
mjspiess is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 6-22-12, 20:19   #2 (permalink)
  Total: 659 Power: 5
 
Join Date: Mar 2002
Location: va
iTrader: (4)
I think it looks great

1990 mx6lx 13.5@102.9 on 87shot
1989 white pgt 486whp 543wtq@29psi..dynoed 11-9-13
1991 probe gt 373whp at 24psi
1988 mx6gt 461whp @32psi
1990 mx6lx 348whp@ 18psi slipping clutch
ademan is offline   Reply With Quote
Old 6-22-12, 20:55   #3 (permalink)
  Total: 17 Power: 5
 
Join Date: May 2007
Location: Lansing, MI, IN, USA
Age: 31
iTrader: (0)
I'm pretty excited to get it installed and feel the difference. I'm getting a 2.5" downpipe too, so I'll have 2.5" turboback.

Do you think others would want one too? He's considering making more if there is a demand for them.

Last edited by mjspiess; 7-12-12 at 15:07..
mjspiess is offline   Reply With Quote
Old 6-22-12, 21:15   #4 (permalink)

  Total: 524 Power: 5
 
Join Date: Apr 2004
Location: Brisbane, Australia
iTrader: (1)
Looks good. I like that you made up a jig for it.

Teh Telstar can NEVAH lose!
SABBAi is offline   Reply With Quote
Old 6-22-12, 21:49   #5 (permalink)
  Total: 435 Power: 5
 
Join Date: Dec 2006
Location: perth, Australia
Age: 37
iTrader: (0)
Looks good.

Don't forget to add a divider to sit inside the exhaust housing and separate the gasses into the 2 pipes.

VF12 - VJ11 hybrid http://www.mx6.com/forums/1g-mx6-for...ic-inside.html 5 1/4" VDO splits in custom door trims http://www.mx6.com/forums/1g-mx6-gen...cs-inside.html, 12" sub in custom boot/trunk http://www.mx6.com/forums/1g-mx6-app...cs-inside.html 2.5" cat back, 18"x12"x3" FMIC.
mx_masta is offline   Reply With Quote
Old 6-22-12, 22:01   #6 (permalink)
  Total: 17 Power: 5
 
Join Date: May 2007
Location: Lansing, MI, IN, USA
Age: 31
iTrader: (0)
Yes, thanks for the tip. I let my friend know to add that.
mjspiess is offline   Reply With Quote
Old 6-22-12, 22:06   #7 (permalink)
  Total: 435 Power: 5
 
Join Date: Dec 2006
Location: perth, Australia
Age: 37
iTrader: (0)
He'll need a turbine housing and gasket on hand to get it right.

It doesn't need to be airtight just snug inside the turbine housing.

VF12 - VJ11 hybrid http://www.mx6.com/forums/1g-mx6-for...ic-inside.html 5 1/4" VDO splits in custom door trims http://www.mx6.com/forums/1g-mx6-gen...cs-inside.html, 12" sub in custom boot/trunk http://www.mx6.com/forums/1g-mx6-app...cs-inside.html 2.5" cat back, 18"x12"x3" FMIC.
mx_masta is offline   Reply With Quote
Old 6-22-12, 22:58   #8 (permalink)
  Total: 17 Power: 5
 
Join Date: May 2007
Location: Lansing, MI, IN, USA
Age: 31
iTrader: (0)
What sucks is I used to have a turbine, but scrapped it... If I get measurements, do you think he could fabricate the divider that way? How important is the indention/flat edge around the wastegate port on the flange? Like this one pictured. I assume it's for the the wastegate to fully open. With the larger hole of my setup, do you think it'd be fine without the indention?
mjspiess is offline   Reply With Quote
Old 6-22-12, 23:31   #9 (permalink)
  Total: 435 Power: 5
 
Join Date: Dec 2006
Location: perth, Australia
Age: 37
iTrader: (0)
If you get him measurements he should be OK.
He can make it a little bigger than the measurements indicate and then you can adjust the divider to suit upon assembly.
BTW, It really only needs a couple of decent tack welds to attach it to the flange, allowing you plenty of room to adjust it to fit.

The milled area next to the Waste-Gate port is to allow the wastegate flapper to open fully.
Depending on the size of the WG port on the flange you have there it might not be neccessary.
You'll have to check the WG range of movement upon assembly and possibly grind with a burr if required.

VF12 - VJ11 hybrid http://www.mx6.com/forums/1g-mx6-for...ic-inside.html 5 1/4" VDO splits in custom door trims http://www.mx6.com/forums/1g-mx6-gen...cs-inside.html, 12" sub in custom boot/trunk http://www.mx6.com/forums/1g-mx6-app...cs-inside.html 2.5" cat back, 18"x12"x3" FMIC.
mx_masta is offline   Reply With Quote
Old 6-27-12, 22:56   #10 (permalink)
  Total: 28 Power: 4
 
Leev's Avatar
 
Join Date: Jan 2011
Location: SoCal, CA
Age: 24
iTrader: (2)
OH MY GOD.

Please make more, and put them up for sale.

If the price is below $200, or even well below...I'm hella down.

89' 626 GT ATX to MTX
Fast stuff: P-ECU/T-Bird Hybrid/Dual valve springs/Fidanza FW/Maas O2 housing/Mjspiess 2.5 Downpipe/side exit/Walbro 190/Bosh DRI injectors/NGK plugs/wires/MSD B2 coil/ATX TB
Stiff stuff: GC coilovers/Addco front sway/Addco rear sway/AWR trailing links/Energy endlinks/FSTB/RSTB/UR 4pt subframe bar/'Hondakiller' Tie bar/SS lines
Leev is offline   Reply With Quote
Old 6-30-12, 13:04   #11 (permalink)

  Total: 1710 Power: 5
 
Join Date: Jan 2001
Location: santa cruz.ca
iTrader: (3)
Quote:
Originally Posted by mjspiess View Post
What do you guys think?
Quote:
Originally Posted by mjspiess View Post
Do you think others would want one too? He's considering make more if there is a demand for them.


I have access to make my own(and have), but I wouldnt have an issue in buying a piece to support a new venture like this to help get it off the ground.

Gavin
gavin is offline   Reply With Quote
Old 6-30-12, 19:23   #12 (permalink)
  Total: 23 Power: 5
 
Join Date: Dec 2008
Location: Auckland, New Zealand
Age: 52
iTrader: (2)
I would be up for one as well, go for it and make up a bulk buy.

Last edited by gbilski; 7-1-12 at 0:21..

1991 MX6 Turbo 4WS back on the road again after 5 years and a full engine/gearbox rebuild.
1990 4WD Capella Wagon2.0 FE3 getting dismantled
1988 4WD Capella Hatch 2.0 FE3 DD
gbilski is offline   Reply With Quote
Old 6-30-12, 19:51   #13 (permalink)
  Total: 28 Power: 4
 
Leev's Avatar
 
Join Date: Jan 2011
Location: SoCal, CA
Age: 24
iTrader: (2)
I seriously can't stop looking at these pics. I have an mx6 that needs one, and a 626gt that could use one lol.

I've shown this to my PGT friend and he is down too.

This is some serious stuff if it actually gets off the ground. (not holding my breath though...)

89' 626 GT ATX to MTX
Fast stuff: P-ECU/T-Bird Hybrid/Dual valve springs/Fidanza FW/Maas O2 housing/Mjspiess 2.5 Downpipe/side exit/Walbro 190/Bosh DRI injectors/NGK plugs/wires/MSD B2 coil/ATX TB
Stiff stuff: GC coilovers/Addco front sway/Addco rear sway/AWR trailing links/Energy endlinks/FSTB/RSTB/UR 4pt subframe bar/'Hondakiller' Tie bar/SS lines
Leev is offline   Reply With Quote
Old 7-1-12, 2:11   #14 (permalink)

  Total: 1710 Power: 5
 
Join Date: Jan 2001
Location: santa cruz.ca
iTrader: (3)
my thoughts on improved O2 housings... http://www.mx6.com/forums/2352860-post34.html.

Gavin
gavin is offline   Reply With Quote
Old 7-9-12, 12:30   #15 (permalink)
  Total: 17 Power: 5
 
Join Date: May 2007
Location: Lansing, MI, IN, USA
Age: 31
iTrader: (0)
I was able to pull a turbine housing and sent it off to my friend. The wastegate actuator moves the flapper roughly 1/2" and once fully open, does break the surface where the flange would meet the turbine housing. So he'll know for sure now if the area next to the waste gate port needs milled or not and will be able to get the divider just right.

Once he makes mine, sends it to me & I get it installed to see if there are any bugs to work out, he intends to make more if there is a demand for them. He thinks he'll be able to sell them for ~$150.

Gavin, I sent my friend several links with examples of what I wanted and he basically combined your waste gate pipe design to Jake's final design and that is what he came up with. It looks great! Thanks for the link to that other thread. I had not come across that one yet. Lots of great info!

I'll keep you guys posted!
mjspiess is offline   Reply With Quote
Sponsored Links
Advertisement
 
Reply

Thread Tools

Posting Permissions
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



Powered by vBadvanced CMPS v3.2.2

All times are GMT -5. The time now is 16:11.



Powered by vBulletin®. Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
SEO by vBSEO 3.3.2
Garage Plus vBulletin Plugins by Drive Thru Online, Inc.
Copyright 2000-2010, MX6.com
MX6.com is in no way affiliated to Mazda Motor Corp.
All views expressed in this site are the personal opinion of the author and not necessarily the owners of MX6.com.