schematics

[gsune]

Hi, first of all congratulation for your great job.
I´m planning to make my own version of Freeems hardware but i´m lost in this forum,
all i need is the link of your latest/best schematics diagram of de proyect.
thanks a lot
Gustavo Suñe
Venezuela

[Fred]

Hola!

Best to read these:

viewtopic.php?f=9&t=1666
viewtopic.php?f=41&t=1699
http://issues.freeems.org/view.php?id=190

Good luck!

Fred.

[gsune]

Ok Fred i agree with you. it´s better than i expected and is easier for me. so i will follow RavAGE.

[Fred]

What type of engine setup? crank/cam wheel setup? injector/coil setup?

[Dan]

Ok Fred i agree with you. it´s better than i expected and is easier for me. so i will follow RavAGE.

/me likes this!

[gsune]

It´s for my Jeep cherokee 4.0 engine year 2000.
It has a 3 coil pack for waste spark, 24.8 lb/h injectors.
the wheel patern is like this one:
http://www.msextra.com/doc/triggers/jeep2000-ang.jpg
It also has a 180 degree cam sensor.
Thanks a lot

[gsune]

I´m think it will be enough for me the following hardware :

1 serial or usb interface
2 voltage reg.
4 coil drivers ( mosfet or igbt )
4 low power positive coil drivers
2 bank of hi impedance injector drivers ( to manage 4 inj each )
1 fuel pump driver
1 idle selenoid or stepper driver
1 Fan driver
1 tach out signal
1 shift light ( optional )
1 nitro driver ( optional )

Inputs:
2 separate trigger circuits
1 map sensor
1 water temp sensor
1 air temp sensor
1 O2 or wide band sensor
1 TPS sensor

I say 4 coil drivers because i also have a jeep cj5 with a V8 350 ( 5.7lt) chevy engine and i´ll make it Freeems also
http://www.youtube.com/watch?v=L2aofSWHo0Q

I´ll always keep the RavAGE PATTERN
Thanks

[Fred]

FreeEMS won't work on your engine yet. There is a queue of people who need specific code. Once you have hw wired up you join that queue.

You didn't read the links I gave you. Do so. Your spec list won't work with the firmware.

You can't drive coils with MOSFETs.

Fred.

[gsune]

ok i'll wait.
But maybe for my jeep cj5 it's more easy. it has a V8 350 ( 5.7 lts) chevy engine.
it has a 8 tooth wheel in the distributor and also i install a 36-1 wheel in the crank damper.
regards

[Fred]

yep, you could run that right now up to 5k rpm or so with semi sequential fuel on 4 channels and 1 dizzy ign channel