Some help with EMS settings needed

[T_terror]

Hi, im not sure on a few things in regards to the standalone im installing.

Its an EMS Stinger 4424, mainly used in Australia.

Its been setup as a piggyback by the tuner, but they arent very familiar with 2Js, and less so with 2JZGEs.


I just wanted to confirm a few things with the guys who are little more experienced:


- Does the dizzy use a hall or mag sensor for the pickup, is it falling or rising edge.

-Its running batch fire, so id be using 3 injection outputs and 1 igniter output for the dizzy, is that correct?

- Is it better to run 360 or 720 injection with stock 330cc injectors? ie. once or twice every engine cycle?


Much appreciated.

Thanks

[Bean]

For anyone interested in the answers (and sorry for the late reply):

1) It uses a single variable reluctance sensor for the crank position and 2 for the cam position. It is magnetic

2) It is a positive blip -> rising edge. Unfortunately, all 3 sensors run on the same ground wire, so it can get noisy. Part of the reason my GTE ECU swap didn't work so well is (I'm pretty sure) because the GTE ECU is designed to read 3 independant sensors that all have independant grounds. The GE ECU had some nice filtering tech to filter out the noise from a common ground like that.

2a) If you are running in piggyback mode and ARE NOT controlling ignition, you can get the pulses you need off the return circuit of the stock ignitor (E9-pin58 : IGf) on the falling edge. In stock JZ engines, the dwell-time varies depending on rpm and other factors, the dwell period begins on the rising edge of the square-wave signal and the actual ignition timing (when the coil is to discharge) is done on the falling edge.

3) Sounds like you're talking about bank-fire injection; which is distinctly different. If you're running bank fire; you want 2 alternating squirts per 720deg cycle(one bank fires on cyl 1,5,3 and the other on cyl 6,2,4)

[Forcefed86]

For anyone interested in the answers (and sorry for the

2) It is a positive blip -> rising edge. Unfortunately, all 3 sensors run on the same ground wire, so it can get noisy. Part of the reason my GTE ECU swap didn't work so well is (I'm pretty sure) because the GTE ECU is designed to read 3 independant sensors that all have independant grounds. The GE ECU had some nice filtering tech to filter out the noise from a common ground like that.

Interesting, I've been having issues with the ign breaking up at high boost on my AEM EMS sc300 NA-t.

I was looking through the sensor options and they have a cam rising edge and falling edge option for the cam and the crank. These options can either be on of off.

Both the cam and the crank are set to falling edge and the rising edge is turned off.

Maybe this is throwing my IGN phasing off.

I'll check into it and let you know. Hope thats the problem!