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Cobb Datalogs

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Old 05-02-2011, 11:25 AM
  #176  
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Check out this log.
The dyno operator missed 3rd and wound out 5th gear be mistake.
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Old 05-02-2011, 01:12 PM
  #177  
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Holy cow Darn. Your like 20g/s more than my datalog I took yesterday. Your engine seems
Very strong
Old 05-02-2011, 07:50 PM
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you can make the MAF put out any number you want it to ....
Old 05-03-2011, 07:02 AM
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Originally Posted by TeamRX8
you can make the MAF put out any number you want it to ....
It is my understanding that Jeff calibrates the MAF early on in his tuning sevice.
The run that was posted was on v4_0_3
Old 05-03-2011, 07:44 AM
  #180  
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Originally Posted by WTBRotary!
Holy cow Darn. Your like 20g/s more than my datalog I took yesterday. Your engine seems
Very strong
Originally Posted by TeamRX8
you can make the MAF put out any number you want it to ....
Remember that the MAF calibration will alter the displayed airflow. Comparing Mass Airflow between cars with calibration adjustments is pretty pointless. The only way this measurement is effective is if you know what your expected airflow is for a given load/rpm.
Old 05-03-2011, 05:16 PM
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Flash & Team... how much would temperature affect the displayed airflow from the MAF? Reason im asking is one day @ 85 degrees I took a datalog and maxed out my MAF at 225g/s while last night I was hitting 245g/s @50 degrees. Would that 35 degree difference make up for that extra 20g/s?

Last edited by WTBRotary!; 05-03-2011 at 05:19 PM.
Old 05-03-2011, 05:34 PM
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Originally Posted by WTBRotary!
Would that 35 degree difference make up for that extra 20g/s?
If you really have to ask that question, then you probably don't need to work yourself any harder to make sense of MAF readings.
Old 05-03-2011, 05:39 PM
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Yeah... I know Jeff... :/ I sound ridiculous right now and probably look stupid. Today is just one of those days where you get everything mixed up.

When your Tune sesh starts back up im gonna send you my logs and ask you a few really weird questions that have been happening... Id prefer to spare myself from looking stupid in front of everyone again
Old 05-03-2011, 05:44 PM
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We'll be back on line in 15 minutes.
Old 05-03-2011, 05:53 PM
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On a slight tangent; is the AP dyno functionality anything to write home about? I can't imagine it's all that accurate, but maybe there's something useful in observed plotting of the data points? Looks like it might be something a bit more substantial than the butt-dyno.

Last edited by maskedferret; 05-03-2011 at 06:09 PM.
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