Notices
Evo Engine / Turbo / Drivetrain Everything from engine management to the best clutch and flywheel.

tubular O2 housing question

Thread Tools
 
Search this Thread
 
Old Oct 12, 2005 | 07:58 AM
  #1  
EVO8LTW's Avatar
Thread Starter
EvoM Guru
20 Year Member
Photogenic
Liked
Loved
iTrader: (41)
 
Joined: Jul 2004
Posts: 4,606
Likes: 98
From: Northern Virginia
tubular O2 housing question

I'm getting a Helix O2 housing this week and am wondering whether I would be asking for trouble to use it without putting a high temp coating on it. I assume that the stock lower heat shield won't fit with this O2 housing? I don't want to cook everything down there running an uncoated piece without a shield.

Are others running this piece without a shield or coating without problems over the long term (1 year+)?

Thanks.
Reply
Old Oct 12, 2005 | 10:09 AM
  #2  
kirk@WORKS's Avatar
Account Disabled
 
Joined: Aug 2005
Posts: 123
Likes: 0
From: San Francisco
Many of our customers have experienced cracks & failure with inexpensive tubular style 02 housings. Coating tubular housings will increase flow by a minimal amount but not close to the efficiency of a thick cast housing similar to the stock unit.
-The best long term solution is a cast piece that retains all factory heat shields.
Our new WORKS 02 housing is a one piece cast 02 housing with factory tabs included to maintain factory heat shields.
-It fits perfectly in the stock position w/o any modifications.

check out the link:http://www.worksevo.com/store/produc...roducts_id=189
Reply
Old Oct 12, 2005 | 10:33 AM
  #3  
EVO8LTW's Avatar
Thread Starter
EvoM Guru
20 Year Member
Photogenic
Liked
Loved
iTrader: (41)
 
Joined: Jul 2004
Posts: 4,606
Likes: 98
From: Northern Virginia
Now that we have the self-promoting, completely unresponsive advertisement message from Works out of the way, could someone with one of those "inexpensive tubular style O2 housings" please give a helpful reply?

Thanks.
Reply
Old Oct 12, 2005 | 10:38 AM
  #4  
Juiced's Avatar
Evolving Member
 
Joined: Aug 2005
Posts: 450
Likes: 0
From: SO CAL
damn dude he's just trying to help.... besides the cheap e-bay style one do tend to crack aolong the welds.

Take it to a good fab shop to get a little more material added between the wels and they hold ok.
Reply
Old Oct 12, 2005 | 10:39 AM
  #5  
VTECH8TR's Avatar
Evolved Member
iTrader: (70)
 
Joined: Jul 2004
Posts: 2,070
Likes: 0
From: La Isla Del Encanto
Originally Posted by kirk@WORKS
Many of our customers have experienced cracks & failure with inexpensive tubular style 02 housings. Coating tubular housings will increase flow by a minimal amount but not close to the efficiency of a thick cast housing similar to the stock unit.
-The best long term solution is a cast piece that retains all factory heat shields.
Our new WORKS 02 housing is a one piece cast 02 housing with factory tabs included to maintain factory heat shields.
-It fits perfectly in the stock position w/o any modifications.

check out the link:http://www.worksevo.com/store/produc...roducts_id=189
DAMN $429.00 plus shipping for this thing. Let me ask what is the Dyno improvement for this 02 housing.
Reply
Old Oct 12, 2005 | 10:42 AM
  #6  
Mike@Forge's Avatar
Evolved Member
iTrader: (23)
 
Joined: Jun 2004
Posts: 1,240
Likes: 0
From: Orlando FL
Many people use the manifolds without coatings.

I, personally, do not have one, but I know many people who do, and they have no issues with heat.

If you are worried about it cracking from heat-cycling, that is not why they crack. They only crack when used in conjunction with a tubular manifold as well which supports the entire weight of the turbo and exhaust and consequently cracks because the tubular O2 housings don't have the support bracket.

If you will still be using the stock manifold, you shouldn't worry about it cracking as the OEM manifold is plenty capable of supporting the weight.

I wouldn't worry about it too much if you're sticking with the stock manifold.

As far as the heat shields are concerned, they really don't do much. Consider that they are metal as well, and will conduct heat and still get hot. I have been driving my car without any heat shields since Feb. of this year with no issues and I know other people who have done the same.

Last edited by Mike@Forge; Oct 12, 2005 at 10:44 AM.
Reply
Old Oct 12, 2005 | 10:43 AM
  #7  
badlooser's Avatar
Evolved Member
20 Year Member
Photogenic
iTrader: (23)
 
Joined: Nov 2003
Posts: 704
Likes: 1
From: west palm beach,Fl
I am running the megan 02 with no problems.. I would not coat it bacause it is after the turbo what will you really gain ? I think nothing . just my 2cts
Reply
Old Oct 12, 2005 | 10:43 AM
  #8  
Syrihl's Avatar
Evolving Member
20 Year Member
Liked
iTrader: (32)
 
Joined: Jun 2003
Posts: 124
Likes: 9
From: Mobile, AL
I ran the Helix O2 Housing for a while without the lower heat shield or coating, then removed it and had it coated by Jet Hot. I didn't have any problems (that I noticed) with cracking or overheating either way. I've been meaning to put the lower heat shield back in since even though 3/4 bolts aren't used, you can still use the top bolt of the lower heat shield on the stock exhaust manifold. I've been told that it stays in place just fine with that one bolt. Oh yeah, make sure to use some cardboard on the backside of the radiator or just remove it completely for the install
Reply
Old Oct 12, 2005 | 11:23 AM
  #9  
Soon2BEVO's Avatar
Evolved Member
iTrader: (41)
 
Joined: Sep 2004
Posts: 4,653
Likes: 0
From: Toms River, NJ
Originally Posted by EVO8LTW
Now that we have the self-promoting, completely unresponsive advertisement message from Works out of the way, could someone with one of those "inexpensive tubular style O2 housings" please give a helpful reply?

Thanks.
Ill be installing a Helix 02 soon too. There is no need to coat it and I have yet to hear of 1 single complaint of anyones 02 cracking. Manifolds are a different story. Its funny how vendors who sell competing products always seem to see the "failing" products over and over.
Reply
Old Oct 12, 2005 | 12:33 PM
  #10  
AlwaysinBoost's Avatar
Evolved Member
iTrader: (17)
 
Joined: Aug 2004
Posts: 3,275
Likes: 0
From: In da streetz
Originally Posted by EVO8LTW
Now that we have the self-promoting, completely unresponsive advertisement message from Works out of the way, could someone with one of those "inexpensive tubular style O2 housings" please give a helpful reply?

Thanks.
exactly, there is WAY to much of that stuff going on here!

Anyway I just purchased a Megan 3" o2 housing that I will be installing shortly. I plan on gasket matching it to the turbine housing and having both coated along with a spare mainfold (which i don't have yet). I'm going to do this over the winter and I'll make a post detailing the process. I have a MR 3" TBE and am very happy with their products... paying $400+ for an O2 housing is ridiclious.
Reply
Old Oct 12, 2005 | 12:38 PM
  #11  
bluebanana23's Avatar
Evolved Member
iTrader: (26)
 
Joined: May 2004
Posts: 2,032
Likes: 1
From: DTX
I coated my 3 inch RNR because I removed the lower heatshield and to increase velocity. It still gets really hot even when coated with a 2000 F coat. Useless info: 2.75 for MR not 3 and 2.5 for the Helix.
Reply
Old Oct 12, 2005 | 12:46 PM
  #12  
evolsk8r's Avatar
Evolving Member
iTrader: (1)
 
Joined: Mar 2005
Posts: 466
Likes: 0
From: Las Vegas
I've been running the helix o2 housing with an aftermarket exhaust manifold, no heatshield, and a bigger radiator with no problems other than the o2 housing is a pain to install. Follow Syrihl's advice about the radiator and you should be ok.
Reply
Old Oct 12, 2005 | 12:47 PM
  #13  
fsugatorbait's Avatar
Evolved Member
iTrader: (16)
 
Joined: Mar 2005
Posts: 1,338
Likes: 0
From: CT
Originally Posted by kirk@WORKS
Many of our customers have experienced cracks & failure with inexpensive tubular style 02 housings. Coating tubular housings will increase flow by a minimal amount but not close to the efficiency of a thick cast housing similar to the stock unit.
-The best long term solution is a cast piece that retains all factory heat shields.
Our new WORKS 02 housing is a one piece cast 02 housing with factory tabs included to maintain factory heat shields.
-It fits perfectly in the stock position w/o any modifications.

check out the link:http://www.worksevo.com/store/produc...roducts_id=189

Im sorry but whoever specked that piece out should be fired. If you have to price it that high to make your margin than your production is horribly inefficient. You can get a complete TBE for less than that shipped. For christ sakes you offer a complete bored TB for less than that with core.
Reply
Old Oct 12, 2005 | 12:52 PM
  #14  
vboy425's Avatar
Evolved Member
iTrader: (19)
 
Joined: Mar 2005
Posts: 2,387
Likes: 1
From: Spec Ops
i have the helix 02 housing, works great. give a little faster spool up. i don't think it's that much gain on the hp side. no crack at all, i drive my car like it's stolen all time. i have good amount of power mods too. 345whp dyno at Tuning Technologies. The works o2 housing is a very well build piece, but for the price i would get something have more gain like 272/272 cams or something else.
Reply
Old Oct 12, 2005 | 09:40 PM
  #15  
Evo Police's Avatar
Evolved Member
20 Year Member
iTrader: (17)
 
Joined: Sep 2004
Posts: 588
Likes: 0
From: DC/MD/VA
Originally Posted by fsugatorbait
Im sorry but whoever specked that piece out should be fired. If you have to price it that high to make your margin than your production is horribly inefficient. You can get a complete TBE for less than that shipped. For christ sakes you offer a complete bored TB for less than that with core.
I agree. I have checked out Works parts before and really wanted to order from them and try them out, but there just to much. I mean there O2 housing looks like a nice piece, but for $400.00 I'll pass until they lower there price.
Reply



All times are GMT -7. The time now is 08:10 AM.