I currently have a 95 Z with the stock PCM (single bar map sensor). From what I understand if I were to upgrade to a 2 bar map sensor, it would be easier for my dyno tuner to re-tune my supercharged Z in my sig, plus, it would probably run better. I am aware that ultimatly a complete FAST system would be ideal, but don't really want to spend the $ involved with that.

My question is, what exactly is involved with switching to a 2 bar map sensor? I am not even sure where it is located in my car. Can I just go to GM and order one for $40?, and then install it right before I have my car dyno tuned?

 

DOn't spend the time doing the 2 bar, you will pull your hair out.....keep adjusting the PE tables...

 

What all is involved? I am not doing the tuning, and I know that 2 and especially 3 bar map sensors have a much wider spectrum available to tune them, and as a consequence, will probably be able to have a better tune on the car.

Why should I stay away??

 

Superchargers are linear in the way they make boost, eg at a certain rpm your boost will always be the same if belt slip is not an issue.

You can tune a supercharged lt with stock map I have 3 cars in my circle of friends that I tune and fine tune. All 3 run like stock cars at part throttle, my car has passed an e test.

Its in the details, pe tables, kpa tables and constant tables.

John

 

After talking it over with my tuner, he told me pretty much exactly what you did. Therefore, I'll be leaving it as is.

Thanks for all the input though!