4agze CAS, trigger and home inputs for haltech PS500

[Casey-G]

2zzge uses a single-wire PWM idle valve (ST215 3sgte does too from memory), it has 3 pins:
-12VControl
-Signal
-Ground

That type is the easiest to control in my experience and leaves you with spare outputs to play with.

This is what i'll be using in the future..



In the mean time i've hit another speedhump.

Am i able to run direct fire with the LS1 coils with just the CAS? or do i need both a crank and CAS to do that?

Original thoughts were to wire it up as wasted spark but if there is nothing else stopping me from going direct fire then i can just use all 4 ignition channels and wire the coils up seprately.

Thoughts??


cheers

[jzk25]

I don't know why you would set it up as wasted spark when the ecu can do sequential. Do it once properly.

[Casey-G]

So i can run full sequential with just the CAS?

Ig1, Ig2, Ig3 & Ig4 are wired to each coil respectfully am i correct?

[jzk25]

If you have NE and G1 on the original dizzy/cas wired and configured then you can run full sequential injection and ignition.

The injectors/ignition can either be wired in firing order or in driver order, depends on the ecu type. Can't remember which Haltech is but it's fucking annoying when they don't spell it out to you in the manual or software. Biggest problem with aftermarket ecu's is the designer not being able to convey simple stuff like this to the end user. Wolf is by far the worst at this, they are fucking hopeless and so is there software. Waste of a good ecu in not being able to "interface" with it. /mini rant

[Casey-G]

Cheers man, very helpfull, i have wired it up for full sequential injection and ignition.


I went over the manual again and found out how the coils get wired, so its all good, now all i need is new injectors and a base map n im set to crank

[JP]

why can't you retain the stock injector resistor from the GZE loom and not go to the expense of new injectors? It wires in to the ignition power side of the loom and is easy to remove/bypass if you ever have a need to get high impedance injectors. The stock GZE injectors will supply more than enough fuel for anything the SC12 can put out.

Remember to set the trigger offset with the timing light before starting it up, good luck!

[Casey-G]

14 pounds of boost is getting on the limit of the injectors (and if worked hard the supercharger). but i've seen it done before..


To be perfectly honest i had not even considered using the stock resistor box... Does that allow the injectors to be observed above 8ohms by the ecu?


Thanks man i might save some of my money here.

[JP]

yep, thats why it's there from factory

[jzk25]

The haltech should be able to handle low impedance injectors anyway, it's just a setting in the fuel setup.
The resistor block might pair the injectors also which will force you to run semi sequential or batch.

[Casey-G]

yep, thats why it's there from factory

Ha yeah i overlooked only a few things when i started this installation...



jzk25,

The haltech (possibly all the platinum series) sprint can only handle low impedance injects if a resistor pack is used otherwise the injectors will not work above 1500rpm.



I still may go bigger injectors... its still on the table.

[jzk25]

Must be just the entry level ecu that is like that. You can still run sequential, you just need a resistor for each injector.

What size injectors are you after and what style? There are a lot of late model injectors that are quite large and have excellent spray patterns that can be had cheaply.

[Casey-G]

Yeah i think it may be just the entry level thing too... I have put an order in for 430cc (i think from an evo) top-feeders yesterday so ill either have them by today or tomorrow. I think i may just go with them and save headaches when it comes to tuning... and like you said are fairly cheap.

Your right, there is plenty of suitable injectors out there, i cannot count how many times i've read a post asking "where do i find injectors for..." when the answer is quite simple.


Will have all the wiring complete by Saturday night me thinks, i was a bit delayed today and didn't get anything done cause i split my forehead open a little on a piece of plate at work, but should be back into it Saturday morning.

[Cuzzo]

if your after 430cc go 440cc and get them from a 7mgte. Everyone else does this.

if your using a 20v this cant be done

[Casey-G]

if your after 430cc go 440cc and get them from a 7mgte. Everyone else does this.

if your using a 20v this cant be done

I would however finding 7m injectors is quite hard I have found I am getting modified BA falcon injectors.

[Casey-G]

Ended ip getting xr6 turbo injectors modified for my fuel rail