I'm thinking running another set of Bosch 1600 injectors. What I'm wondering is do I need to run a 2nd resistor pack or do I just tie the injectors into the wiring? As for the ecu wiring I just tie its injectors together correct? Thanks.

 

To be honest with you. It would be best to have 8 injector drivers/channels to enable you to control the injectors separately. That way you could have them act as 2 separate banks and have true dual stage fuel injection tuning. Unfortunately S300 does not have this capability.

However if you just want to have 2 injectors firing off the same signal you could take a chance and tie them into the existing injector ECU wiring. If you are going to do it this way. I would suggest that you run a separate resistor box for each set of 4. I'd be more worried about the injector drivers inside the ECU myself. Running two off one circuit could overheat the drivers.

 

Wiring 2 injectors on one wire parallel even with resistor boxes will probably blow the injector drivers. Running them series may not but would be very strange plus dead time would be horrible. To run s300 just get 4 huge injectors. Or get a stand alone that can handle 8.

Wire 2 loads parallel draws more amperage. Series draws less amps but each injector would only be working with 6 volts.

 

I know setups that have successfully run dual ID 1000s on an s300 but I would image controlling fuel on low impedance injectors at idle would be damn near impossible and may do damage to an ecu

 

Use a relay to power the 2nd set of low impedance injectors in the high cam only y0... vtec + crappy injectors = mad powa! hahaha

 

hey chris,

i asked you about this few months back we'll try it real soonnn on S300.

I think we can generally come up with about 8-12ohms that the ECU can see, but the total impedance could be higher, that could potentially damage the ecu. but its probably worth a try.

2 ID2000s. E85. goal of mid 900s at the wheels.

 

A higher impedance will not hurt the ECU, only make the injector operation lag-g-ier.. The lower the impedance the closer you are to a dead short which draws more current then the drivers are designed to handle. I would just like to say doing what you guys are trying to do is a bad idea.. Save yourself the hassle. Either get some bigger injectors, or get an ECU that can control 8 injectors properly.. Its a lot more expensive to replace an engine...

 

MRE makes some nice large injectors that actually have a descent spray pattern..

http://www.youtube.com/watch?v=38dAGr1ZSUQ&noredirect=1