Tuners:

Would it be easier to tune if I kept the stock map sensor versus replacing it with a 3.5 bar map sensor? I will only be running 9psi of boost. When I do plan to boost more, I ofcourse will def replace it but for the time being, will the stock on suffice @ 9lbs?

Thanks
-Carlo

 

Not an expert on this, but I thought that when you boost, you use some sort of MAP "clamp" to hide boost (MAP signal) from the ECU anyway, so does it matter as long as the ECU gets the proper signal when not in boost?

 

With my limited knowledge, I see only 3 ways to deal with boost and map sensors.

1) clamp it
2) trick it
3) alter it

I would assume that an AEM EMS or any other stand alone would alter it.

 

Since your factory ECU is set for the factory MAP sensor it would not work with the aftermarket sensor so stick with the factory MAP sensor until you get an AEM.

The voltages are different and the AEM allows you to enter the different ranges.

 

The only reason to go to a 3.5 bar MAP sensor is if you are boosting more than 1 bar and if that is the case you should definitely be using an AEM EMS or similar.

If you're using the AEM then it's simple a matter of telling it what MAP sensor you're using and it will calibrate itself accordingly.

 

As stated above, if your running your factory ECU, your going to hide the boost from it. If your using an AEM EMS, then rock the 3.5 bar. It is easy to setup.

FYI: The factory MAP is good to about 11 psi

 

Why? I'm not 'rock'ing it and yet I am turbocharged and using the AEM EMS.

 

How much boost?

 

8.5psi. That's why I haven't seen a need to upgrade the MAP sensor.

I would say that the only reason to upgrade the MAP sensor is if you are going higher than 10 or so psi at which point you should already have proper engine management and possibly a built engine.

 

AusS2000 I was referring to his original quote: Like I said, The stock one is good up to 11.