A Nissan Sentra Forum banner
1 - 20 of 24 Posts

·
Administrator
Joined
·
7,093 Posts
Discussion Starter · #1 ·
I am going to let the images do the talking for the most part, I will state that:
1) Diameter of pipes are bigger.
2) There is no transition from the flange to the pipe (oval to round).
3) Unofficially the pipes are no equal length with 1 & 2 being shorter.

Black Standing Art Gesture Grey
Sleeve Gesture Thigh Font Waist

Font Gas Pipe Metal Electric blue
Automotive tire Wood Grey Synthetic rubber Gas
Wood Luggage and bags Denim Bag Gas
White Light Tool Font Bicycle part
Font Musical instrument Audio equipment Eyelash Wood
 
  • Wow
Reactions: Tritton

·
Administrator
Joined
·
7,093 Posts
Discussion Starter · #2 ·
Here are the ports in no particular order but should be 4, 3, 2 and 1respectively.

Helmet Wood Gas Automotive wheel system Auto part
Wood Gas Audio equipment Auto part Automotive wheel system
Automotive tire Gas Automotive wheel system Snout Rim
Gas Composite material Helmet Snout Auto part



Close ups of the mid-pipe.

Automotive tire Automotive lighting Gas Cylinder Auto part
Bicycle part Cylinder Gas Nickel Rim
 

·
Administrator
Joined
·
7,093 Posts
Discussion Starter · #5 ·
Its straight with a hangar welded on.
 

·
Administrator
Joined
·
7,093 Posts
Discussion Starter · #8 ·
Leaving it as is, it will not cause issues with flow....but at the same time I'm thinking of getting rid of it even after getting it ceramic coated but its not getting installed until i get re-tuned with the current set up as the tune is that bad.

At some point I will just have custom one done, not much of a choice, try and get a V1R flange.

If I was NA I’d take that header and weld a reverse megaphone right to it. I’m always thinking race car sh*t lol
Umm..it's v-band...
 

·
One of One???
Joined
·
1,769 Posts
It's a non restrictive flow. Small dent isn't going to stop flow at all, especially with how big them pipes are. I actually love the alt side still has the trimmed flow. I'm interested to see how the power is.
 

·
Administrator
Joined
·
7,093 Posts
Discussion Starter · #11 ·
Both, saw testing from far worse and impact to output was negligible, granted it was on an engine dyno but they put some nasty dents in the runner.
 

·
Registered
2006 Nissan Sentra 1.8S Special Edition
Joined
·
206 Posts
Ok. Complete fucking noob here. But which one is better and why? What makes one header better than the other? Whats makes a good header?

The dents dont look like it would be good?
 
  • Haha
Reactions: Tritton

·
Administrator
Joined
·
7,093 Posts
Discussion Starter · #13 · (Edited)
Ok. Complete fucking noob here. But which one is better and why? What makes one header better than the other? Whats makes a good header?

The dents dont look like it would be good?
There is no short or direct answer for that, part of it depends on the motor and internals with focus on the valve train while another is overall header design to primary length, diameter size merging, where output is expected and other stuff dealing with pulses, velocity, scavenging and other things.

Supposedly the black one makes more power.

I didn't measure anything today, but might tomorrow.


Not sure how "valve" auto corrected to "basic"....
 
  • Wow
Reactions: Richardw72

·
Registered
2006 Nissan Sentra 1.8S Special Edition
Joined
·
206 Posts
There is no short or direct answer for that, part of it depends on the motor and internals with focus on the basics train while another is overall header design to primary length, diameter size merging, where output is expected and other stuff dealing with pulses, velocity, scavenging and other things.

Supposedly the black one makes more power.

I didn't measure anything today, but might tomorrow.
Thank you for explaining that to me!
 

·
Administrator
Joined
·
7,093 Posts
Discussion Starter · #18 ·
Will see cause more and more I don't want it.... but I still don't know what to do a of now, wait for now or something else...
 

·
Administrator
Joined
·
7,093 Posts
Discussion Starter · #20 ·
Not really, it is a one off to my knowledge but it's not what I originally expected as when I ordered it i was expecting a 4-2-1 and no one said we are making it a 4-1 cause you're different.

I really haven't decided.
 
  • Like
Reactions: Tritton
1 - 20 of 24 Posts
Top