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Help with logs, how lean does this look?

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Old Aug 21, 2012 | 08:58 PM
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trevorradman's Avatar
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From: Colorado Springs, CO
Default Help with logs, how lean does this look?

I appear to be running lean, completely stock. Does this look dangerous? It looks pretty lean as soon as I get on it. Anyone have a healthy stock log I can compare to?

Look at image or rename .txt to .zdl to read through zeitronix reader.

Thanks!
 
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Old Aug 21, 2012 | 09:02 PM
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grip grip's Avatar
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From: TN
Default Re: Help with logs, how lean does this look?

It looks fine to me considering the amout of boost you're running. Now if you were seeing 22psi on the gauge with over 22 degrees of spark, I'd say fatten it to high 11's or low 12's.

On the other hand, I never like to see 13's, but I do when I first floor it and it fattens up around 30mph. If you beat on it everyday, you might want to adjust it for peace of mind, but I doubt you're in any danger.
 

Last edited by grip grip; Aug 21, 2012 at 09:41 PM.
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Old Aug 21, 2012 | 09:33 PM
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trevorradman's Avatar
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Default Re: Help with logs, how lean does this look?

Thanks Grip. I am just doing pre-mod-logging, I have a pulley and tune ready to go on. I drive this little car very hard.

Is 80% calculated load normal? I'm expecting 100?
Is 98% TPS normal under WOT?
What is your A/F at 10 LBS?
 
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Old Aug 21, 2012 | 09:49 PM
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grip grip's Avatar
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Default Re: Help with logs, how lean does this look?

Originally Posted by trevorradman
Thanks Grip. I am just doing pre-mod-logging, I have a pulley and tune ready to go on. I drive this little car very hard.

Is 80% calculated load normal? I'm expecting 100?
Is 98% TPS normal under WOT?
What is your A/F at 10 LBS?

I only see 98% TPS logging though the ZT2. MY AF is at 10psi for only a split second in first gear (13.5), but it's just a blip as the boost climbs quickly and never drops below 16-17 psi until I let off the gas in 4th gear.
 

Last edited by grip grip; Aug 21, 2012 at 09:55 PM.
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Old Apr 7, 2013 | 04:38 PM
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JesseJamessrt6's Avatar
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Default Re: Help with logs, how lean does this look?

Originally Posted by trevorradman
I appear to be running lean, completely stock. Does this look dangerous? It looks pretty lean as soon as I get on it. Anyone have a healthy stock log I can compare to?

Look at image or rename .txt to .zdl to read through zeitronix reader.

Thanks!
how did you get your graph to have all the values plotted along the curve in your attachment?
 
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Old Apr 7, 2013 | 05:59 PM
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32krazy!'s Avatar
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Default Re: Help with logs, how lean does this look?

zt2 download software. its free and you will read everything asd a graph. tip for the day is dont log so much at once. break the pulls down to a max of 4 to 4 parameters at a time. less data faster refresh rate
 
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Old Apr 7, 2013 | 10:15 PM
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JesseJamessrt6's Avatar
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Default Re: Help with logs, how lean does this look?

These look good right? A little rich but a good thing for a tune in a box. I'm worried about the lower RPM/lower boost lean readings.

1stgearDatalog_zpsf2420222.jpg
 
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Old Apr 7, 2013 | 11:01 PM
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JesseJamessrt6's Avatar
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Default Re: Help with logs, how lean does this look?

The graph above in the previous post was the higest RPM.




This one is of the highest boost (it also maxed out at 19.1 psi just right before full RPM)


maxboost62mmscdcai_zpsebd85130.jpg






This one is the lean spike at initial WOT


1stgearpullleanspikeatfirst_zpsc4e817bf.jpg
 

Last edited by JesseJamessrt6; Apr 7, 2013 at 11:05 PM.
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