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Verdict on larger intake 3" vs 3.5" vs 4"

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Old Mar 4, 2014 | 09:10 AM
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npr350z
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Default Verdict on larger intake 3" vs 3.5" vs 4"

I didn't make it to be a tease and I've done some searching but there doesn't seem to be a lot of solid information on it out there. I've searched, and I understand the concept, but I'd hope those that have ventured down this path will enlighten us some.

It seems that gains are to be had and it's becoming more of a popular topic, so I figured I'd make a thread. Most parts are easy to come by like the tread stone maf adapter in 3, and 3.5 inch and a blox velocity stack up front, the rest is just tubing and couplers. Then the fancy bits of tuning and maf scaling.

But if you got knowledge, opinions, insight, hate, throw it up here!

https://my350z.com/forum/showthread.php?t=223208&page=5
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Old Mar 4, 2014 | 09:36 AM
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2004Black350z
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Whynot do Dyno comparison of 3.5 and 4?

My vote is 4 with upgraded tb
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Old Mar 4, 2014 | 09:43 AM
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Well to be honest, if I lived closer to a place that had a dyno I would. But sadly I'm bout 4 hours away from one. And even then it's iffy. I was gona try the 3.5 when I lived in Washington, but I ended up going supercharged. But that went bye bye (sick pet, then dental bills, didn't wanna drain the savings). So I'm just gona stick na. But I'm somewhat in middle of nowhere,lol
But I'm just wanting a easy comparison for myself and others, and I'm sure somebody's done it before and has the dynos and maf scaling to accompany it. Ya know make everyone's life a lil easier.

Also blackz, idk if I read it in that thread or somewhere else, but doesn't the strut bar have to be removed with a 4"? It's to big to fit. Maybe I'm just making stuff up though..

Last edited by npr350z; Mar 4, 2014 at 09:46 AM.
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