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Forum: Nissan 370Z General Discussions

08-28-2010, 05:04 PM

Replies: 41

Air fuel code for scangauge

Views: 4,636

Posted By Jordo!

Really -- we have factory wideband sensors?...

Really -- we have factory wideband sensors? That's seriously bitchin :tup:

That should make tuning a snap (provided you can datalog it), and no need to spring for aftermarket widebands -- yay!!!
...

Forum: Nissan 370Z General Discussions

06-19-2010, 08:52 AM

Replies: 41

Air fuel code for scangauge

Views: 4,636

Posted By Jordo!

Well, fair enough -- epecially if this was a...

Well, fair enough -- epecially if this was a general tune intended to provide an extra margin of safety for folks who wouldn't be tweaking things on their own :)

What CR were you working with?

Forum: Nissan 370Z General Discussions

06-18-2010, 10:55 PM

Replies: 41

Air fuel code for scangauge

Views: 4,636

Posted By Jordo!

10.8! IMO, that's a tad rich unless you are stuck...

10.8! IMO, that's a tad rich unless you are stuck with 91 AKI (or maybe a little too high a CR on the pistons...). Were you getting det leaner than that?

Eh... I'm used to tuning VVTLi on my old...

Forum: Nissan 370Z General Discussions

06-18-2010, 06:56 PM

Replies: 41

Air fuel code for scangauge

Views: 4,636

Posted By Jordo!

^^^ thanks for that. It depnds on the...

^^^ thanks for that.

It depnds on the application -- richer (say mid 11's to mid 12's) is usally a bit better for FI (especially if nonintercooled or intercooling isn't optimal or only lower...

Forum: Nissan 370Z General Discussions

06-18-2010, 04:45 PM

Replies: 41

Air fuel code for scangauge

Views: 4,636

Posted By Jordo!

That's a relief! That's perfectly safe and not...

That's a relief! That's perfectly safe and not too far off from the likely best torque AFR (varies from motor to motor, but something around 13.2 is generally ideal N/A).

Congrats!

If you want...

Forum: Nissan 370Z General Discussions

06-18-2010, 12:28 AM

Replies: 41

Air fuel code for scangauge

Views: 4,636

Posted By Jordo!

Is that a transformed value derived from the...

Is that a transformed value derived from the narrowband O2 voltage? In closed loop, all the ECU cares about is seeing the O2 hover around .5 volts (i.e., ~14.68 AFR / lambda = 1.0).

There's pretty...

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