Wouldn`t this upgrade be almost mandatory for us turbo guys?

http://www.diyautotune.com/catalog/m...8705413f50fd52

 

What would be your reasoning, planning to run more then 21psi boost(limit of the 2.5 bar MS standard map sensor)of boost on your 13BT?

 

yeah, I was just about to type the same thing... the only other reason to get that thing is to have real-time baro correction.

 

Which would be nice, but DAMN! Thats a lot of boost....

 

I was really considering the real time barometric correction. I have NO intentions of boosting near that high, more like 10-12psi max (BNR stage 2).

 

Keep in mind that if you're not planning on boosting that high, you can lose MAP resolution by going to the 400kPa MAP sensor... So I wouldn't use the 400kPa sensors unless you need them.

The reason being that with the 250 kPa sensor, you're representing the whole range with 255 steps (8-bit analog to digital converter), so you have a little more than 1 step per kPa. With a 400 kPa sensor, now you've got about 1.6 kPa per step... so it's less accurate. This probably won't be a big deal on an rx7, but it would cause me trouble on the ITB-equipped corolla.

The ms2 has 10-bit ADC's, so it would be more accurate with the 400kPa sensor (around .4 kPa accuracy). The planned MS3 will likely use 12-bit ADCs, that gives us .1 kPa accuracy.

Ken

 

I get where you`re coming from now. I`ll save the MAP mod for when I decide to go on to MS2.