which is better?

my setup
itr rs machine 84mm
b16 head b16 trans
skunk2 pro 2 cams aem cg
skunk2 billet 70mm
stock intake manifold
hondata s300 v3

 

turbo is better


skunk2 itr style im

 

personal I would go with the ultra manifold from skunk2 a lot better flow

 

Victor X is for turbo applications.

I agree with this. ^

 

With your setup, the best intake manifold for you would be the Skunk2 Ultra Street series. (see pic from Skunk2 below)

 

From my experience the victor X manifold likes larger displacement engines or turbo applications. The Skunk2 ITR style "pro-series" manifold would be best suited for a 1.8L engine with moderate compression, such as yours.

 

Its not a 1.8L anymore - it is an 84mm bore, almost 2.0L. Respectfully, I disagree with you - based on his setup I feel that the Ultra Street series is his best choice. Also, if you look at the Skunk2 comparison picture that I posted in my previous post, the Ultra Street series is designed for a setup like his. I believe you'll be leaving power on the table w/ the Pro Series.

 

2 liters like ITR style manifolds best usually. It is possible he could gain a couple HP from the ultra street, but I don't think it would be more than a HP or 2, and possibly lose some midrange.

https://honda-tech.com/forums/showpo...8&postcount=15

 

I like the new Ultra street manifold, its a good choice.

I've tuned a fair amount of 1.8s with the victor, street cars, and the powerband is perfectly fine. Its going to all depend on the cams, header and actual head setup.. Sometimes the manifold can be too big, but more times then not, its fine.. A lot of misinformation still floating around.

Its not just a turbo manifold, although it does perform really, really well on turbo cars. The VictorX on my personal ITR years back did well over the Gen1 skunk. I had it on my first 2.0 liter build and loved it before I got on my ITB kick..

I'd strongly recommend a PerfX manifold that's modded or a ultra street if its a street car..