i tried searching for this, but couldnt seem to find anything. Id like to do a cheapish EBC for my car, and ive so far found these two systems:

http://autospeed.drive.com.au/....html
this kit looks pretty sophistocated... boost control based on engine load, monitored via injector duty cycle

http://minimopar.knizefamily.n....html
this one is much more open ended, but is also much simpler. the first one im not sure i can handle, the second one should be doable.
im pretty excited about trying out the simpler one; im now trying to find someway of getting the circuit schematics to a form that is PCB ready

opinions on these two circuits?

 

interesting... now make it work

 

tell us how it goes

 

well, i found a program that i can make the schematic diagram and it creates a 2-sided PCB for me.

now i just need to print out the pictures and transfer the images to an actual board. im going to try this guy's technique some time this week... link: http://www.pulsar.gs/PCB/a_Pag....html
wish me luck!


Modified by emo_marty at 5:45 AM 1/17/2006

 

Interesting.

 

Nice, I got a program from a prof that lets you do stuff like that.

 

small update: ive sent requests for samples of most of the components i need for the circuitry. if i can get samples of all that stuff the only things ill need to buy are 2 small ICs, some special paper, and the pcb blanks.

hopefully needasample.com pulls through for me!

 

I can assure you that national-ic sucks at sending samples.

I'm going to try out needasample.com right now

 

the nice folks at texas instruments and NJR have sent me some samples of the ICs i need, ill wait a few more days to see if the other companies come through.

digikey has shipped my pcb blanks and transfer paper. hopefully it arrives today so i can try the printing transfer!

 

The engine load boost controller is very interesting, I would love to see that in action.

 

well, i have the circuit about half way soldered together. im going to have to repair a couple traces as i messed up the toner transfer a bit, but whatever. thats what jumper wires are for

once i get it completed im going to see if i can possibly sneak into one of the EE labs here on campus to use a power supply and test out my circuitry

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by doubleA &raquo;</TD></TR><TR><TD CLASS="quote">The engine load boost controller is very interesting, I would love to see that in action.</TD></TR></TABLE>

you could sort of rig-up the simpler one to do something similar. use the tps voltage to open/close a solenoid that lets it go to a higher boost setting. not as smooth as the injector duty cycle thing, but cheaper... *shrugs*