Speed density AKA map sensors do not work with 2-strokes. Isn't that just wonderful?

 

thats so sad

 

ok. why dont they work?

 

Ya why not?

 

Well since you asked little jimmy, becuase of the resonance properties of a 2-stroke motor, a map sensor becomes worthless. Here's a datalog maybe it'll make sense:





Unlike a 4-stroke air goes back into the intake manifold and pressurizes it. So measuring the pressure won't work since its not always under constant vaccumm when running. Whitey is not happy.

 

Whitey got owned.
Now what Dr. Whitey?

 

reed vavles and piston ports= terable vacume signals :P

 

Onto the wonderful world of MAF.


Anyone got a Ford MAF?

 

what are u using to run the show?
megasquirt?

 

your going to try and calibrate it with a heated wire sensor? you are better man that I if you can pull it off, good luck