airflow meter
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airflow meter
im droping a 13b turb out of a 1988 into my 1st gen, is there a way to bypass the airflow with the factory ecu?? or is there a way i could hook up a map sensor out of a 3 gen to it with the factory ecu??
Re: airflow meter
Originally posted by DJ!
im droping a 13b turb out of a 1988 into my 1st gen, is there a way to bypass the airflow with the factory ecu?? or is there a way i could hook up a map sensor out of a 3 gen to it with the factory ecu??
im droping a 13b turb out of a 1988 into my 1st gen, is there a way to bypass the airflow with the factory ecu?? or is there a way i could hook up a map sensor out of a 3 gen to it with the factory ecu??
I don't thnk you could get anything reliable out of the ECU with the air-flow meter bypassed. The third Gen ECU will be even more of a Pain in the ***.
Get a Haltech F9 (fuel only), a 1st Gen Dizzy with the advancer weights tack-welded so they don't advance,
retard the timing about 3-5 degrees, and run without problems.
Old [Sch|F]ool
Joined: May 2001
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From: Cleveland, Ohio, USA
The AFM is what actually measures the airflow going into the engine, without it the computer has no clue how much air goes into the engine.
Spee-density systems (FD, most aftermarket computers) don't measure airflow, they CALCULATE the airflow based on RPM (speed), manifold pressure/temperature (density), and known characteristics of the engine. That's the problem with speed-density - if you change the characteristics of the engine, say by porting, or a different exhaust, or a different intake - you screw up the calculations. That's why you can't mod an FD and keep the stock computer. Meanwhile, FC guys with the airflow meter computers just have to make sure they don't hit fuel cut
Spee-density systems (FD, most aftermarket computers) don't measure airflow, they CALCULATE the airflow based on RPM (speed), manifold pressure/temperature (density), and known characteristics of the engine. That's the problem with speed-density - if you change the characteristics of the engine, say by porting, or a different exhaust, or a different intake - you screw up the calculations. That's why you can't mod an FD and keep the stock computer. Meanwhile, FC guys with the airflow meter computers just have to make sure they don't hit fuel cut
Originally posted by peejay
The AFM is what actually measures the airflow going into the engine, without it the computer has no clue how much air goes into the engine.
Spee-density systems (FD, most aftermarket computers) don't measure airflow, they CALCULATE the airflow based on RPM (speed), manifold pressure/temperature (density), and known characteristics of the engine. That's the problem with speed-density - if you change the characteristics of the engine, say by porting, or a different exhaust, or a different intake - you screw up the calculations. That's why you can't mod an FD and keep the stock computer. Meanwhile, FC guys with the airflow meter computers just have to make sure they don't hit fuel cut
The AFM is what actually measures the airflow going into the engine, without it the computer has no clue how much air goes into the engine.
Spee-density systems (FD, most aftermarket computers) don't measure airflow, they CALCULATE the airflow based on RPM (speed), manifold pressure/temperature (density), and known characteristics of the engine. That's the problem with speed-density - if you change the characteristics of the engine, say by porting, or a different exhaust, or a different intake - you screw up the calculations. That's why you can't mod an FD and keep the stock computer. Meanwhile, FC guys with the airflow meter computers just have to make sure they don't hit fuel cut
That's why an aftermarket ECU will make all the difference now.
Oh, and PeeJay, thanks again for clearing it up.
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