1986 mustang 5.0 mass air conversion? - Mustang Evolution

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Old 12-12-2011, 01:15 AM   #1
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1986 mustang 5.0 mass air conversion?

I am looking into buting a 1986 5.0 mustang. It says Mass air conversion. What exactly is that? I am a little confused.
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Old 12-12-2011, 01:52 AM   #2
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1986 mustang 5.0 mass air conversion?

i believe that anything pre 87.5 was not fuel injected for fords. so mass air conversion means that the fuel and air managment system was converted to the mass air flow style fuel injection system. not the Speed density system that is found in some cars. Mass air uses a mass air flow sensor to sense the incommming air through the intake.
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Old 12-12-2011, 02:18 AM   #3
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1986 mustang 5.0 mass air conversion?

Mass airflow metering. Larger air intake duct and air breathing filter change usually to a K&N filter cold air intake type. A few different designs available to improve a cooler intake charge increasing hp.
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Old 12-12-2011, 02:47 AM   #4
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1986 mustang 5.0 mass air conversion?

yep, me too, so I tried to do some research, type mass air conversion for an 86 mustang, there is such a thing, however I clicked into several links, and none actually explained what it is supposed to do, it is however quite involved (new wiring harness, different parts, and it is not something that would be easy to return back to stock easily, I noticed than a number of applications had bigger cams or built up motors, this is not something that would be done by a middle aged person who drives the mustang on weekends.
This appears to be related to high performance, and possibly a way to introduce more air on a high performance motor. (or one way) personally, anything related to faster, is usually something a younger individual would do, that said, a vehicle may be modified, and may have had some hard use in a racing application, this is not a car I would be interested in as a daily driver , or something that had a adult owner who used it as a normal grocery getter. My advice, be careful, and I suggest you get more information from a mechanic, if you plan to persue this, personally, I would pass on this. I look for cars owned by older adults, who take care of the car, not stick go fast goodies, drive the pee out of it, then sell it to someone else. best of luck. get a complete mechanical inspection before buying ok?
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Old 12-12-2011, 02:59 AM   #5
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1986 mustang 5.0 mass air conversion?

The other guys are right - Mass air is just a more accurate way to measure air flow into the engine then the speed density system. I think '89 was the first model year Mustang with the mass air system.
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