370Z TT and WOT AFR

W.O.W. 370Z

I have been trying to see what members on here are running but many of the dynos show no AFR just the power they made.

I am running a pretty safe WOT AFR (10.4) and its got to the point where it is too safe.

Mike@GTM

Hmmm...how are you getting your AFR numbers? Via UpRev? Standalone Wide band? Dyno wideband?

W.O.W. 370Z

The torque app for android reads AFR from ECU. Reads both commanded and measured.

It allows me to datalog. I noticed my fuel mileage going to **** and also noticed my rear bumper pretty much stained.

Mike@GTM

To be honest, when measuring something as critical as AFR, I would strongly urge you to consider something with known good accuracy. A standalone wideband setup like AEM, Innovate or something along those lines.

I'm not knocking your app, I'm just concerned that it may not be giving you and us an accurate picture of what's going on. Is 10.4 on the safe side, yes, but it shouldn't make your bumper black either.

Do you know if you got a 91 octane tune from Sam or a 93 octane tune from him?

W.O.W. 370Z

Tune from local UPrev tuner in South Florida.

I only run 93 octane . I shall see what happens tommorrow.

I figured the app pulls the data straight from ecu pids so it is showing me what ecu sees.

I hate having gauges in the car but I will look into what options I have for standalone widebands.

Thanks Mike!

Mike@GTM

I'm happy to help.

Yeah, ok, that makes sense...I know Sam is pretty conservative on his tunes, but 10.4 seemed a bit much...even when reading off the factory widebands.

Tomorrow when you go see your tuner, try to get a dyno graph with AFR readout. Then, compare those numbers to the numbers you're getting from your logger to get an idea of the offset between your data and the dyno's wideband...at least until you get a standalone AFR gauge...if you're concerned about it.

Also, since you are running 93 octane, you can actually run a little leaner than you would on 91.

W.O.W. 370Z

Pm'd

kosstick

off topic but hows the tranny?

W.O.W. 370Z

Still has the flare from 3-4. I am suspecting low fluid but I see no leak anywhere or any evidence of one.