Help With 16g/exhaust manifold/o2 housing

[Malero5]

I am getting an evo III 16g and I have a few questions.


Can I port the 2g manifold/o2housing/and trubo to matchup with a 3 inch exhaust? If not...whats the biggest I can port them too? I am looking to push the 16 to its max potential on a 2g EM and a gen 1 o2 housing.

 

[granny_slow2g]

wait a sec. are you going to be using the 1g or 2g o2 manifold? You state you are using both. It will be easier to answer.

 

[Malero5]

sorry 2g manifold and 1g o2 housing

 

[Thomas91169]

isnt the 1g o2 housing smaller?

why cheap out on stuff. get a SBR Cast manifold and a Tubular o2 housing from punishment racing and call it a day. i mean, you can port the lip on the 2g exhaust manifold to match with the 16g, but i really dont think you can do much to help the 1g o2 housing.

and i believe all o2 housings are 2.5", but thats perfectly fine, seeing as hotter air is less dense and has no problem flowing through a smaller space into a larger space(like a 3" downpipe).

 

[CanadianTSi]

A ported 2g Exhaust manfiold will take the 16g to it's max.

But I would suggest getting a 2g o2 housing, there bigger to start with and less prone to cracks, they can be ported out plenty big and there cheap.

 

[ChvyKc]

A ported 2g Exhaust manfiold will take the 16g to it's max.

But I would suggest getting a 2g o2 housing, there bigger to start with and less prone to cracks, they can be ported out plenty big and there cheap.

I agree, I ported the crap out of my stock 02 housing and it is just slightly bigger than a stock 2G. We put a tubular O2 housing with an external dump on a buddies car before he blew the tranny up and it made a considerable difference, definately worth the money.

 

[-red97rum-]

isnt the 1g o2 housing smaller?

why cheap out on stuff. get a SBR Cast manifold and a Tubular o2 housing from punishment racing and call it a day. i mean, you can port the lip on the 2g exhaust manifold to match with the 16g, but i really dont think you can do much to help the 1g o2 housing.

and i believe all o2 housings are 2.5", but thats perfectly fine, seeing as hotter air is less dense and has no problem flowing through a smaller space into a larger space(like a 3" downpipe).

I thought punishment racing was gone...

 

[ChvyKc]

I thought punishment racing was gone...

I was under that impression as well, I just did a search for their website and couldn't find anything. They also are not listed as a sponsor of the website anymore so they are probably done for.