AEM EMS G1 - Low Z 1250 injectors. Do I need injector drivers for a nice idle?

[tunermag]

As the topic title says, I have the following setup:

Eclipse 1G stroker
FIC Bluemax 1250 cc (low impedance)
AEM EMS Gen 1

We recently finished the build and we are getting problems to get a good idle. Since the Gen 1 EMS can't only control high Z injectors we left the resistor box in place.
Car is going very rich, even with 500ms injection pulses.

Do I need an Peak & Hold Injector Driver Module like the AEM one and get rid of the resistor box?
Or, can we get a good idle with the current setup?

Tks

 

[e85_4g63]

Did you talk to FIC about the correct battery voltage settings? (I forget what the proper term is off the top of my head). Latency I think, I've been up for 28 hours...

What's the base fuel pressure at? What idle RPM are you trying to hold?

 

[tunermag]

Did you talk to FIC about the correct battery voltage settings? (I forget what the proper term is off the top of my head). Latency I think, I've been up for 28 hours...

What's the base fuel pressure at? What idle RPM are you trying to hold?

Tks, I've just write them to ask for the battery offset. I've lost the datasheet.

This was the first start after 3 year project, base fpr 43.5

 

[tunermag]

I've got these numbers from FIC tech support

8 Volt 10 Volt 12 Volt 14 Volt 16 Volt
Injector latency (ms) 1.75 1.56 1.35 1.17 0.98

I understand that I need to multiply those per 1000 to get the battery offset number to load in EMS software. Is that right?

So, for 12 volts, 1350 in battery offset is ok?

 

[eclipsegsx1736]

I've got these numbers from FIC tech support

8 Volt 10 Volt 12 Volt 14 Volt 16 Volt
Injector latency (ms) 1.75 1.56 1.35 1.17 0.98

I understand that I need to multiply those per 1000 to get the battery offset number to load in EMS software. Is that right?

So, for 12 volts, 1350 in battery offset is ok?

For a Series I, yes, that's correct. Series I uses uS (microseconds) whereas the data above is in mS (milliseconds). Series II uses mS directly. 1000uS=1mS

Beau

 

[tunermag]

For a Series I, yes, that's correct. Series I uses uS (microseconds) whereas the data above is in mS (milliseconds). Series II uses mS directly. 1000uS=1mS

Beau

Tks.

Initial idle tunning improves a lot with those parameters. After working with the cams, timing, etc, the car is ok.