So, if you relocate the MAF sensor to the upper intake piping, just before the intake manifold, what would be the benefit of this and side effects of this?

This would be fairely easy job and it would let you get the air flowing easier for the intake.

I also think this would give you a better reading on the air flow since it's just before the intake manifold and it'll let you use BOV before the MAF sensor...

inputs would be great.

 

ok.. you can do a blowthrough setup with an upgraded MAF, however it will not work with the stock MAF, first, you'd destroy it, second, it would never read correctly, third, the car would run poorly because it has other sensors built into it.

HOWEVER you can upgrade to a blowthrough sensor using something from www.pro-flow.com or another product by ramchargers called the Maf Translator, the pro-flow unit uses a Ford Hot-Wire sensor, and the translator uses a GM sensor.. Both have advantages and drawbacks.. the advantage of the Proflow unit are it reproduces all the correct sensor outputs, it also is pre-calibrated for the application. The ramchargers maf translator takes more work to calibrate and install, but is much cheaper.

Do your research (search for blowthrough MAF, MAF Translator, MAF Converter) and you'll see the options you have.

Below is one of my threads:
https://www.evolutionm.net/forums/sh...lowthrough+maf

Everything is a compromise from stock, however once you understand the products and what they are good at, you can see if the compromises you make are worth the gains.

 

The only "Trouble" I've had with my blowthrough setup is minor..

1) If the DV/BOV is adjusted incorrectly, excess pressure can cause RPM's to Rise between shifts, you either have to get a bigger BOV to vent more air faster, or set up your DV to open easier and stay open longer.

2) You have to raise idle speed a little, since when the car is idling, airflow levels can drop to a point where the idle airflow is lower than the blowthrough setup can measure, and then the car goes a little rich, idle speed should be around 1000rpm with this setup

Other than that, I've had much improved drivability and a way more linear airflow reading that isn't influenced by anything in the intake tract.

 

Proflow could be installed onto the evo and will replace the stock MAF sensor?

I'll do my searches. I really haven't found too much about relocation.