Cold Air Intake & Maf Scaling - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

nyny69 · 09-08-2010, 08:02 PM

Just trying to understand what is going on from the following 2 scenarios. Complete Novice

Intake 1. Wot Maf frequency scales to 8990--- Maf g/s is 344

Intake 2. Wot Maf frequency scales to 8465--- Maf g/s is 344

Intake 2 has a larger tube. If intake 2 was scaling higher would the maf g/s also be higher?

Does this translate into more power?

DSteck · 09-08-2010, 08:33 PM

Your MAF spits out a frequency based on how much air is moving over it. When you tune, you are defining what airflow value is at each frequency.

If Intake 2 is showing the same airflow at a lower frequency... then yes, if you're able to hit the same frequency as Intake 1, you are moving more airflow.

Your engine is an airpump. The more air you can pump through, the more power you're going to make. When a car is tuned the proper way, you can get pretty close estimates by reading how much air is moving through. A rough estimate is that each lb/min of airflow translates to about 8.5 wheel horsepower. If you're reading g/sec, then multiply g/sec by 1.1 for an estimate.

nyny69 · 09-08-2010, 08:56 PM

Quote:

Originally Posted by DSteck

Your MAF spits out a frequency based on how much air is moving over it. When you tune, you are defining what airflow value is at each frequency.

If Intake 2 is showing the same airflow at a lower frequency... then yes, if you're able to hit the same frequency as Intake 1, you are moving more airflow.

Your engine is an airpump. The more air you can pump through, the more power you're going to make. When a car is tuned the proper way, you can get pretty close estimates by reading how much air is moving through. A rough estimate is that each lb/min of airflow translates to about 8.5 wheel horsepower. If you're reading g/sec, then multiply g/sec by 1.1 for an estimate.

This was exactly what I was looking for. Thank You DSteck.

I will look into having the maf scale redone. Car runs good but hate to leave something on the table.

DSteck · 09-09-2010, 08:34 AM

Quote:

Originally Posted by nyny69

This was exactly what I was looking for. Thank You DSteck.

I will look into having the maf scale redone. Car runs good but hate to leave something on the table.

If fueling is correct at WOT, then precisely calibrating the MAF won't really pick up power. It will just make things smoother and more predictable.

09-08-2010, 08:02 PM	#1
nyny69 Drives: 2010 IOM SS Join Date: Aug 2009 Location: NY Posts: 1,397	Cold Air Intake & Maf Scaling Just trying to understand what is going on from the following 2 scenarios. Complete Novice Intake 1. Wot Maf frequency scales to 8990--- Maf g/s is 344 Intake 2. Wot Maf frequency scales to 8465--- Maf g/s is 344 Intake 2 has a larger tube. If intake 2 was scaling higher would the maf g/s also be higher? Does this translate into more power?

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09-08-2010, 08:33 PM	#2
DSteck Account Suspended Drives: 2006 Corvette Z06 Join Date: Feb 2010 Location: St. Louis, MO Posts: 587	Your MAF spits out a frequency based on how much air is moving over it. When you tune, you are defining what airflow value is at each frequency. If Intake 2 is showing the same airflow at a lower frequency... then yes, if you're able to hit the same frequency as Intake 1, you are moving more airflow. Your engine is an airpump. The more air you can pump through, the more power you're going to make. When a car is tuned the proper way, you can get pretty close estimates by reading how much air is moving through. A rough estimate is that each lb/min of airflow translates to about 8.5 wheel horsepower. If you're reading g/sec, then multiply g/sec by 1.1 for an estimate.