Evo X Megan Racing O2 housing
Just for an FYI, the outlet of the turbo is 2.5" so going larger at the turbo flange side isn't necessay. On my ATP O2 DP they used a 2.5" flange that was tapered out to a 3" pipe, I'm not sure what the specs are on this Megan O2 housing are though.
Evolving Member
Joined: Oct 2009
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From: SL, UT
I just had my stock one off recently, and I cannot honestly believe there is much to gain over that. It looks like it flows fairly well minus the various odd shapes... but overall there is a lot of cross-sectional area in the housing.
I'm purchasing a MR O2 housing with my FP Red, so I'll report back once I get it in a month.
Evolving Member
Joined: Oct 2009
Posts: 438
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From: SL, UT
Newbie
Joined: Feb 2009
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From: NYC BrOoKlYn
Understand that the main reason the the Evo X's O2 Housing is so tightly angled (which is bad for flow) is because they need that one part to be compatible with both LHD and RHD models. On RHD X's the steering rack is extremely close. This obviously isn't a problem for LHD X's, which is why we can make a better flowing product that utilizes all of the free space available. On top of tht, our one-piece O2 DP combo helps us eliminate the donut gasket connection which in itself is not 3" and therefore a restriction.
Darryl
www.ultimate-racing.com
Darryl
www.ultimate-racing.com
Evolving Member
Joined: Oct 2009
Posts: 438
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From: SL, UT
The stock O2 housing has a 2.25" ID on the outlet. Guessing if the OD of that is the same on the Megan piece, it's got about a 2.35" ID, because the walls are thinner than on the stock cast piece, or the rough equivalent of a 2.5" OD exhaust pipe.
IMO, it should flow slightly better than stock, but isn't worth changing on the stock turbo. I've had my O2 housing off... it's not that restrictive to flow.
This is a 2-5 WHP mod, don't bother unless you're changing out your turbo anyway.
IMO, it should flow slightly better than stock, but isn't worth changing on the stock turbo. I've had my O2 housing off... it's not that restrictive to flow.
This is a 2-5 WHP mod, don't bother unless you're changing out your turbo anyway.
The stock O2 housing has a 2.25" ID on the outlet. Guessing if the OD of that is the same on the Megan piece, it's got about a 2.35" ID, because the walls are thinner than on the stock cast piece, or the rough equivalent of a 2.5" OD exhaust pipe.
IMO, it should flow slightly better than stock, but isn't worth changing on the stock turbo. I've had my O2 housing off... it's not that restrictive to flow.
This is a 2-5 WHP mod, don't bother unless you're changing out your turbo anyway.
IMO, it should flow slightly better than stock, but isn't worth changing on the stock turbo. I've had my O2 housing off... it's not that restrictive to flow.
This is a 2-5 WHP mod, don't bother unless you're changing out your turbo anyway.
Evolving Member
Joined: Oct 2009
Posts: 438
Likes: 0
From: SL, UT
It's rough as hell and has a few protrusions that can smoothed out a bit. Wouldn't gain that much to be honest, I didn't even bother to port it while I had it off.
yeah? Well I guess what I am asking is if the rough stuff was polished out, would it make the few hp that the the 02 housing would produce?
Newbie
Joined: May 2009
Posts: 60
Likes: 0
From: Brunei
Understand that the main reason the the Evo X's O2 Housing is so tightly angled (which is bad for flow) is because they need that one part to be compatible with both LHD and RHD models. On RHD X's the steering rack is extremely close. This obviously isn't a problem for LHD X's, which is why we can make a better flowing product that utilizes all of the free space available. On top of tht, our one-piece O2 DP combo helps us eliminate the donut gasket connection which in itself is not 3" and therefore a restriction.
Darryl
www.ultimate-racing.com
Darryl
www.ultimate-racing.com