TurboEF9

Joesph, I think I love you.

toalan

Joseph I love you and I will name my first born daughter after you thanks bud. Hopefully this weekend I can put all this good theory in practice. I will let you boys know what voltages come from my sensors. thanks again

TurboEF9

One question I have about your setup...

..how are you going to make it possible to get accurate voltage readings through your serial or parallel port? I was under the assumption (yes, I know) that for a pin to become active on either port, a certain voltage would have to obtained for the pin to "activate". Hrm, I could be way off, correct me if I'm wrong.

Or, are you going to use an external device (something other than your laptop) to check and manipulate voltages?

toalan

oh you need to get a Digital to analog converter to convert the signal form the sensor into digital data, then you have to convert from 0v-5v logic to like 5v-14v logic (which is the voltage range for the paralell port). Vice versa for the output.

so basically

snesor->Analog to Digital Converter->Voltage converter->Parellel Port->Control Software->Voltage converter->Digital to Analog Converter->ECU/Injectors/etc..

I will probally be using a Programming languagbe called "MATLAB", it is used in Engineering/Finanace alot for Mathematically intensive applications plus it has the ability to easily grab data in real time and output data in real time. If I ever get this thing off the floor I will show you screen shots of the control algorithm, it will have a pictorial representation and you can adust things by just draggin and dropping boxes, just like Microsoft Viso with Block Diagrams.

I think I will do this for tunning once I an satisfied I will dump my settings to a microcontroller and have everything wired directly to it.

So.
Sensor->Microcontroller (it has DACs built in)->ECU/injectors/etc...

I will start to fiddle with sensors this weekend once I buy a new volt meter tommorow.

Thanks again guys.

toalan

Yo I just had a crazy Idea, I just picked up some 380cc DSM injectors for cheap (pink top are they any good?). Basically the injectors are a solenoid switch, so I should be able to build and electronic boost controller from it. Better yet I can use my old honda injectors and make an electronic boost controller. I am just wondering if this idea has any reality to it?

thermal

*** all of you have gained these knowledge! He he he he....j/k. I just wish I have a clue on how to incorporate all of these jargon in my limitted knowledge in tuning... I will someday. Good tech fellas!!!!!!