Goin' Megasquirt (My progress thread)

[Lex]

Sweet

Did you use the stock igniter?



I haven't herd anything good about any of them.

No I am using 2 VB921s

[photoeye0]

No, it's a 4G61 igniter that I forgot I had.

I don't think the knock control box will work, but the sensor will.

[jacobrussell]

http://www.glensgarage.com/catalog/vb921-ignition-coil-driver-board-p-82.html

de de deee

[photoeye0]

Why pay money for something when I don't need!

[photoeye0]

My wiring


I put it up a full size. Did I miss anything?

And do you think I'll need some sort of condenser with the 4G63 coils?

[FE3-323]

ok my mistake, that last pic wasn't a knock control box... what was it!!!??? an igniter??? something special about it??

[photoeye0]

ok my mistake, that last pic wasn't a knock control box... what was it!!!??? an igniter??? something special about it??

It's an igniter out of an old summit with a 4G61. Nothing special about it. It'll just work well with my 4G63 coils.

[Lex]

Does that use wasted spark? In that case that's probably two igniters in one box?

[therieldeal]

do you need that, or can you just direct-fire the coils with two vb921's?

[Lex]

I use 2 vb921s

[therieldeal]

okay thats what i thought, i'll probably go that route.

[photoeye0]

Yes it is just basically 2 igniters in one box. It has 2 in from the MS, 2 out for the coils and a ground. I chose not to use the VB 921's cuz I'm cheep and I can usually get igniters for free or super cheep and with all my mods that I have done and want to do I might not have the room in my case.

It'll work just fine for wasted spark and if I do someday go COP I can use 2 of them.

[Lex]

I have idle PWM, wasted spark and boost control in one case ... it is a little crowded.

[photoeye0]

I have 2 shift light (which I might take out), boost control with a big heat sink and launch control. I also would like to put in the knock sensor stuff and switchable tables. So it packed in there.

[jacobrussell]

i noticed you didnt put down how to pair the injectors

its
yellow 1-3 to injector 1 on the ms 32-33
yellow/black 2-4 to injector 2 on the ms 34-35

ok one more tip

becuase there are several ground pins and most wire kits come with large ground wire take some smaller wire and cut them to equale lenth then attach them to the pins on the oposite side i usualy attach 3 wires to one heavy grond wire.

it will fit nice and create an even ground.