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Author Topic: O2 Sensor Output (mv) compared to measured AFR  (Read 153477 times)

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hrdtail78

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Re: O2 Sensor Output (mv) compared to measured AFR
« Reply #705 on: August 21, 2013, 11:33:47 AM »

That is exactly why we look at some data in the microsecond resolution.  I very often look at 500000 lines of data in one screen shot with confidence that never existed just 10 years ago.

Andy

I am talking Harley and the products out there to tune Delphi with.  The data you collected with the vision on your sportster.  How fast was the data collected?  Wouldn't a product that collects faster be better?  More data for every second?
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whittlebeast

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Re: O2 Sensor Output (mv) compared to measured AFR
« Reply #706 on: August 21, 2013, 11:49:48 AM »

Faster data rates is almost always better. 
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hrdtail78

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Re: O2 Sensor Output (mv) compared to measured AFR
« Reply #707 on: August 21, 2013, 12:01:37 PM »

https://app.box.com/s/n6feydhnc00rvioqn1q9

Here is about 120 seconds of data.  CAN bike.
« Last Edit: August 21, 2013, 12:04:45 PM by hrdtail78 »
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FLTRI

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Re: O2 Sensor Output (mv) compared to measured AFR
« Reply #708 on: August 21, 2013, 12:48:12 PM »

There ya go again Andy. Asked how you interpret the data and what you actual change to make a new picture.
You simply dismiss the question indicating its way over our heads.
Just show us with arrows, etc what you see jumping out at you and what you did to fix it and the subsequent picture to show the improvement in performance.
Easy enough, right?
Bob
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whittlebeast

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Re: O2 Sensor Output (mv) compared to measured AFR
« Reply #709 on: August 21, 2013, 01:46:44 PM »

There ya go again Andy. Asked how you interpret the data and what you actual change to make a new picture.
You simply dismiss the question indicating its way over our heads.
Just show us with arrows, etc what you see jumping out at you and what you did to fix it and the subsequent picture to show the improvement in performance.
Easy enough, right?
Bob


Post up a data log off a Harley and lets all take a look...

Andy
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FLTRI

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Re: O2 Sensor Output (mv) compared to measured AFR
« Reply #710 on: August 21, 2013, 02:07:09 PM »

We just want to see how you use these scatter graphs and any data from your harley will suffice since you already have it.
Post the log so we can use our preferred tools to look at it.
Come on Andy, stay on point here...remember the OP?

Bob
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whittlebeast

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Re: O2 Sensor Output (mv) compared to measured AFR
« Reply #711 on: August 21, 2013, 02:14:24 PM »

I don't think I know anyone still using TTS software.  They have all switched over to Power Vision.

Andy
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FLTRI

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Re: O2 Sensor Output (mv) compared to measured AFR
« Reply #712 on: August 21, 2013, 02:36:52 PM »

I don't think I know anyone still using TTS software.  They have all switched over to Power Vision.

Andy
That's ok. We only want to see how you apply what you see to the calibration.
PV data is fine. We all have the software to look at it.
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hrdtail78

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Re: O2 Sensor Output (mv) compared to measured AFR
« Reply #713 on: August 21, 2013, 02:45:27 PM »

I don't think I know anyone still using TTS software.  They have all switched over to Power Vision.

Andy

The file I uploaded is TTS.  So I still use it.  How many guys you know that tune for a living?  I'm not talking guys that have tuned there own bike once or twice after a mod.  I know and talk to quit a few, full time tuners, they all still use TTS.
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FLTRI

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Re: O2 Sensor Output (mv) compared to measured AFR
« Reply #714 on: August 21, 2013, 03:21:35 PM »

Nothing quite like a postage stamp monitor to stare at while riding around for an hour collecting extra lean running conditions.
Bob
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whittlebeast

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Re: O2 Sensor Output (mv) compared to measured AFR
« Reply #715 on: August 21, 2013, 03:38:10 PM »

The file I uploaded is TTS.  So I still use it.  How many guys you know that tune for a living?  I'm not talking guys that have tuned there own bike once or twice after a mod.  I know and talk to quit a few, full time tuners, they all still use TTS.

Most of the people that I know that tune for a living tune for Indy car teams or grand national stock car teams.  Several make a living writing EFI software.  A few have dynos just to support their racing addition.

Andy
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FLTRI

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Re: O2 Sensor Output (mv) compared to measured AFR
« Reply #716 on: August 21, 2013, 04:12:21 PM »

Most of the people that I know that tune for a living tune for Indy car teams or grand national stock car teams.  Several make a living writing EFI software.  A few have dynos just to support their racing addition.

Andy
So what we're looking for here concerns Harley EFI not indycar or NASCAR.
Have you got sensor voltage and AFR data for WOT from your one and only Harley?
Try to keep this thread on topic,
Bob
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hrdtail78

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Re: O2 Sensor Output (mv) compared to measured AFR
« Reply #717 on: August 21, 2013, 04:24:39 PM »

Most of the people that I know that tune for a living tune for Indy car teams or grand national stock car teams.  Several make a living writing EFI software.  A few have dynos just to support their racing addition.

Andy

I don't know anybody in that world that uses MS or ML.
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North Georgia Hawg

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Re: O2 Sensor Output (mv) compared to measured AFR
« Reply #718 on: August 22, 2013, 12:03:56 AM »

I have been following this thread - initially with rapt interest - but lately mostly for the purely voyeuristic1 entertainment value.

It seems to have rather crassly morphed into an thinly-veiled sales pitch for this MLV product - with Whittlebeast continually hyping it, talking down to everyone, and never explaining SQUAT about what this data really MEANS... much less how it can actually be USED to improve a Harley TC tune at or near WOT... despite repeated requests to do so, from multiple quarters... including from an individual who can only be regarded as one of the most accomplished practitioners of the fine art of Harley EFI tuning.

Except for certain widely-spaced posts from several people, including the aforementioned individual - this thread has done no more to answer the OP's question than have the previous threads on the "other-forum-whose-name-cannot-be-mentioned-here"...

This has simply gotten TOO SILLY!

Ken

-----------
1. Voyeur (n.) An obsessive observer of sordid or sensational subjects.



« Last Edit: August 22, 2013, 01:35:51 AM by North Georgia Hawg »
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whittlebeast

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Re: O2 Sensor Output (mv) compared to measured AFR
« Reply #719 on: August 22, 2013, 06:46:43 AM »

I only have one good example of a motor that has an issue.  The owner only had one pass up thru the problem area and once he saw the issue, he got on the dyno putting the motor in that exact situation and fixed the tune.  My bet is he is not willing to put the blown tune back to prove a point.  Motors are too expensive.

All I need is a generic O2 data stream off one of you guys bikes.

Andy
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