Been talking to someone who was telling me that it is a popular mod in Japan to use 6 injectors with the PFC for SINGLE turbos by modding something inside the ECU.. anyone has more info on this?



Is putting on resistors on the injectors ..ie in the case of running 2x850, 2 x 1600's essentially the same as what this guy is saying ..or is this something else.. if it is in fact something else totally.. then watch out .



Here's a cut and paste from the email I got:-



"(snip) ...And if you modify the inside (ECU) of your Power FC, it can control six injectors. The modify is often called "Twin Drive." Notice that if you try to control the injectors by just modifying the wire, it would ruin the power transistor inside of the ECU. Thereby, the injectors will eject the gasoline at all times, and it might catch a fire. I will tell you that the situation is very dangerous and you don't want to barbecue your car, right? So just don't try to modify by wiring. If you cannot modify the ECU, then you have to use the other means of the injector control. This way you can use

2x850cc injectors for primary, and 2x850 + 2x1000 injectors for secondaries."



TIA,

3G7

 

i never heard of it. jspec or dragon ????

 

the way i was thinking about doing it (for 20b) is since the stock injectors are high impedance, you can run stock primaries (12-13ohms), and low impedance secondaries, and thirdinaries (850@2-3ohms and 1000@2-3ohms) thats say 2-3ohms times 4 = 8ohms so you only need restistors to make it like stock



mike

 

I think mike hit it on the head. I would go stock primary and 2 X low impedance secondary's.

 

Ah Ha ... you might be on to something there...



btw ..the folks in Japan whom I was speaking to .. is SCOOT...they seemed to be firm believers that you have to open up the ECU to run 6 injectors...



Haven't received a reply message from them though.. maybe they are trying out your idea ..he he



3G7

 

they might do something like that on the inside? i dunno, thats how you could do it.

hmmmm, maybe that would work on a stock ecu with a super afc?!?



mike

 

Hmm still no replies on this.....I talked about this on the other forum and the PFC does not allow you to run more injectors than the car came with. The owner of Border told me to splice into the harness of the existing injectors. Maybe Scoot is wiring and additional injector controller or some kind of Modification to the ECU in order to run additional injectors Im not sure. It seems like a waste of time when you can just run the properly sized injectors right there and not have to mess with additional injecotrs.

 

i still wonder what you would do inside the ecu to add injectors? add another driver? have and exra output on a pin they dont use otherwise?



mike

 

The injector driver will handle 6 injectors stock.. there is a bunch of stuff on the datalogit e-mail list on it and the guys who made the datalogit are running 6 injectors now and have been doing it for a long time... I'll try to dig out those e-mails in the next few days and post them...

 

that would be cool :bigthumg:



mike