Mass air flow or speed density
#1
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Car: 1985 Camaro Z28 IROC
Engine: 5.0L TPI H.O. 215HP STOCK
Transmission: 700R4
Axle/Gears: GU6=3.42
Mass air flow or speed density
Hello all,
So while looking through threads I found a thread about timing, and someone had asked if the guy had Mass Air Low or Speed Density style, I don't know the difference or how to tell the difference. I have a 1985 IROC with a 5.0 liter "F"
Pictures are worth 1000 words.....
Thanks
So while looking through threads I found a thread about timing, and someone had asked if the guy had Mass Air Low or Speed Density style, I don't know the difference or how to tell the difference. I have a 1985 IROC with a 5.0 liter "F"
Pictures are worth 1000 words.....
Thanks
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Car: 87 IROC
Engine: L31 350
Transmission: T56
Axle/Gears: 4.10 D44
Re: Mass air flow or speed density
Your 85 has a MAF.
"Mass Air Flow" sensor (85-89), typically called a MAF, or MAS for Mass Airflow Sensor measures the amount of air being drawn in to the engine. It is a fairly large housing (compared to a MAP) that is locate in the intake/aircleaner tract.
Picture here.
Or just here:
Speed Density (90-92) uses a MAP sensor = Manifold Absolute Pressure. This measures the pressure (vacuum) in the manifold and calculates how much air is flowing into the engine. It is mounted on the passenger side rear of the plenum:
"Mass Air Flow" sensor (85-89), typically called a MAF, or MAS for Mass Airflow Sensor measures the amount of air being drawn in to the engine. It is a fairly large housing (compared to a MAP) that is locate in the intake/aircleaner tract.
Picture here.
Or just here:
Speed Density (90-92) uses a MAP sensor = Manifold Absolute Pressure. This measures the pressure (vacuum) in the manifold and calculates how much air is flowing into the engine. It is mounted on the passenger side rear of the plenum:
#3
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Join Date: Aug 2015
Location: Lansing Michigan
Posts: 168
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Car: 1985 Camaro Z28 IROC
Engine: 5.0L TPI H.O. 215HP STOCK
Transmission: 700R4
Axle/Gears: GU6=3.42
Re: Mass air flow or speed density
Wow that's great!!! The pictures sure do help, I really do appreciate it.
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eightsixseven
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08-14-2015 03:09 PM