LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

What are your AFGS numbers??

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Old Jun 27, 2010 | 07:36 AM
  #1  
aboatguy's Avatar
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What are your AFGS numbers??

What numbers AFGS (airflow grams/second ) are you seeing on your datalogs.... and how much of a pressure drop are you seeing between baro and the map readings?

I've been searching for a little while what the normal pressure drop and MAF for modified LT1s are ....


Thanks

Mike
Old Jun 27, 2010 | 08:28 AM
  #2  
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At what engine load? Your question is not very specific.
Old Jun 27, 2010 | 09:47 AM
  #3  
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I'm sorry WOT at high rpm....


please post

Please post
engine size and mods
RPM
AFGS
Baro
Map
Intake air temp
Old Jun 30, 2010 | 07:08 PM
  #4  
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Here's one of mine ....what do you have????

Name:  Slide1-2.jpg
Views: 23
Size:  83.2 KB


Air Temperature:75degrees F

Barometric Pressure:29.78inches Hg

Relative Humidty:79 %


Density Altitude: 1517 feet
Relative Density: 95.64 %

Last edited by aboatguy; Jun 30, 2010 at 07:16 PM.
Old Jun 30, 2010 | 07:25 PM
  #5  
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Barometric pressure here is about 85kpa. My car was peaking around 185gm/sec when stock. Now it's doing 295+ N/A, which would be around 350gm/sec @ sea level.
Old Jul 1, 2010 | 07:31 PM
  #6  
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Thanks for the info.....




Here's another log a 371.20
Name:  mafafgs.jpg
Views: 42
Size:  82.2 KB



Temperature: 69.1 degrees F

Barometric Pressure:30.01 inches Hg

Relative Humidty:90%


Density Altitude: 858 feet
Relative Density: 97.51 %
Old Jul 3, 2010 | 07:49 AM
  #7  
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How about some datalogs folks


Here's a shot from this morning...



Name:  Slide2.jpg
Views: 39
Size:  82.8 KB
Hit 352.4 a couple time on this logging session...

Weather data

Air Temperature: 79 degrees F

Barometric Pressure: 30.03inches Hg

Relative Humidty:82%

Density Altitude: 1539 feet
Relative Density: 95.57 %

Last edited by aboatguy; Jul 3, 2010 at 07:54 AM.
Old Jul 5, 2010 | 10:13 AM
  #8  
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aboatguy:

345 gms/sec @ 5250 rpm and ~ +4 psig
167°F water temp + 84°F IAT
74% inj duty cycle
mods as in signature

BTW, what is the mass air flow of a factory stock Z28 LT1?

Last edited by NJ-LE; Jul 5, 2010 at 10:26 AM.
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