I did order up spare PCBs, so the MAF converter is something I can make more of once I do some logging and make sure everything is dialed in.
The MAF that I am using presently is probably good for up to 300hp. It was the stock VW MAF for most of the 1.8T and 2.0T engines in VW and Audi cars throughout the 2000's.
On an internally stock M42, I doubt that there is much to be gained in terms of power. Throttle response and idle stability seem to be a bit better though. If you are making over 180bhp though, I do think that the stock AFM starts to become a little bit of a bottleneck. The crossectional area of the M42 AFM inlet is the same as the M20 AFM, and the M20 benefits from the larger M30 AFM, so I think that there is a reasonable argument to be made that a high-flowing M42 can also gain from a sensor with larger crossectional area in the inlet.
The MAF that I am using presently is probably good for up to 300hp. It was the stock VW MAF for most of the 1.8T and 2.0T engines in VW and Audi cars throughout the 2000's.
On an internally stock M42, I doubt that there is much to be gained in terms of power. Throttle response and idle stability seem to be a bit better though. If you are making over 180bhp though, I do think that the stock AFM starts to become a little bit of a bottleneck. The crossectional area of the M42 AFM inlet is the same as the M20 AFM, and the M20 benefits from the larger M30 AFM, so I think that there is a reasonable argument to be made that a high-flowing M42 can also gain from a sensor with larger crossectional area in the inlet.
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