Need to ID this O2 housing

[cheapracer]

I want to find a gasket to fit the O2 housing in the pic. It came on the car and I don't know the mfr. Can anyone tell me who makes it or where to get a gasket?


backround: i have a 91 gsx with a worn out 14b turbo. it has a 3" O2 housing on it. i also have a nearly new ebay 16g and header laying around. i want to put the 3" O2 housing on the ebay 16g but the gaskets dont match. it also looks like the old 14b was ported to the bigger housing. The housing has a cut out between the main exhaust and the waste gate path. Im not sure if that is ok, or if it has been ruined, or if I just need a different gasket.

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[JusMX141]

Either a ported 1G housing or an Evo III housing based on the location of the o2 sensor. Can't tell without flange specs.

 

[Bud92gsx]

Its true the 1g o2 is up more near the manifold, where the 2g is down further.

To find out if it's an e3, the bottom where it bolts to the DP will be angled more than the 1g/2g o2 housing.So If you have an extra laying around, that should help identify it.

 

[JusMX141]

The Evo III housing is physically larger than any 1G or 2G o2 housing...disregard any flange angles; you'll know the difference for sure.

 

[luv2rallye]

For those who don't know, JusMX141 rebuilds turbos and is by far THE turbo expert on here.

 

[cheapracer]

thanks for the replies. I might know the difference "for sure" if i wasn't a total noob with turbos.

The gasket for the stock size housing is smaller and doesn't fit right on the bigger housing. So that sounds like i have an evo III O2 housing, correct? If i order an O2 housing gasket for an evoIII 16g turbo, it will fit?

 

[snowborder714]

Do 1g's have the extra bump at the downpipe flange as seen in the bottom right of the 2nd picture above? It seemed the few pictures I found had an oval shaped downpipe flange, or they were mislabeled and weren't actually 1g's. Seems a bit odd that they'd be almost identical other than inlet sizes.

Looks pretty darn similar to the Evo 3 in this picture.
http://www.dsmtuners.com/forums/new...w-dejon-down-pipe-question.html#post152598618

Evo 3 o2 gasket - MD185805

 

[Bud92gsx]

On the inside no the 1gs Is different than this.

And The bump at the bottom no.1g's are circular around the heat sheild threaded holes, these in the ops picture look larger and not round..Also the 1g has a casting stamp below/above the first heat sheild hole.

Also no casting line on the 1g.

So then it's probably the E3 like in that link..

 

[JusMX141]

Right-on, Brian- definitely an Evo III o2 housing.

 

[cheapracer]

sweet !
thanks for the help guys

cheap