Advanced Resonance Tuning (ART Pipes)
Tony, please excuse me for not reading the entire thread, but I'm seeing some issues with the V1's cracking. Are the V1's still under warranty? If not, discounts to replace the cracked pipes?
No but many times a power mod is actually more efficient. I even measured a 2%-3% increase in fuel efficiency in ART pipe development.
Another thing that often happens is people will use the extra power provided by a modification which will use more gas in the process.
Also, one thing you can do is dyno test to see where your A/F ratio is. If you find it is running rich its easy to fix with a tune.
Another thing that often happens is people will use the extra power provided by a modification which will use more gas in the process.
Also, one thing you can do is dyno test to see where your A/F ratio is. If you find it is running rich its easy to fix with a tune.
The decrease in fuel efficiency is related to the long term fuel tables and is evidenced by Uprev Cipher data logs on primary vs secondary O2 sensors.
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Joined: Jan 2012
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Have you recently reset your fuel learning?
I didn't see this change at all with my fitting of the ART's. It's quite possible that something else isn't quite right for you?
I did reset my fuel learning and i also had to relearn the idle air control.
I didn't see this change at all with my fitting of the ART's. It's quite possible that something else isn't quite right for you?
I did reset my fuel learning and i also had to relearn the idle air control.
Joined: Jul 2004
Posts: 3,054
Likes: 85
From: Los Angeles California
The ART pipes do not cause a decrease in fuel efficiency. It seems there may be a air leak somewhere in the system. Air leaks can actually let air in the exhaust flow during the scavenge phase of the exhaust pulse. When air gets in, the A/F sensor reads excess oxygen in the system and thinks its running lean so it adds in more fuel to compensate, but adding more fuel to an already properly tuned system means its now running rich.
Check for a leak near the inlet flange.
Check for a leak near the inlet flange.
Joined: Jul 2004
Posts: 3,054
Likes: 85
From: Los Angeles California
I would like to but I will need access to one on a lift. The problem is nobody drives X's in So Cal.
i<3 you.
The ART pipes do not cause a decrease in fuel efficiency. It seems there may be a air leak somewhere in the system. Air leaks can actually let air in the exhaust flow during the scavenge phase of the exhaust pulse. When air gets in, the A/F sensor reads excess oxygen in the system and thinks its running lean so it adds in more fuel to compensate, but adding more fuel to an already properly tuned system means its now running rich.
Check for a leak near the inlet flange.
Check for a leak near the inlet flange.
http://my350z.com/forum/tuning/55203...and-input.html
Joined: Jul 2004
Posts: 3,054
Likes: 85
From: Los Angeles California
Try removing the steel wool inside the O2 sensor socket and let me know what you find. It may be what you need.
A short piece of heavy steel wire with a hook shape bent at the end of it can be used to pull the steel wool out.
A short piece of heavy steel wire with a hook shape bent at the end of it can be used to pull the steel wool out.
