Additional Injector Controller

[penagihdadih]

Additional Injector Controller (need some help and guide)

Hello everyone,

I want to DIY additional injector to my car but i have some puzzle need to be solve first.

So as i dig up at mr google i found that injector receive electrical pulse to operate. What if i tap the injector positive wire straight to battery terminal or fuse box. Does this harm anything?
Or there are other way to get the injector operate better than this?

 

[kayour]

shift lite

 

[penagihdadih]

hallo... anybody home?

 

[spoon civic]

quite complicated..............

 

[vr2turbo]

When you have additional injector, it has to be controlled. If always open, you will flood the engine, air fuel ratio will be out.
Moreover, why do you need additional injectors? are you doing forced induction? Adding more fuel do not means more power, air fuel ratio have to be correct.
My friend did once. He change to bigger turbine and blew one engine. Then the next engine he added 2 more injectors and operate with a switch, but to be used only at high revs....very troublesome....

 

[penagihdadih]

When you have additional injector, it has to be controlled. If always open, you will flood the engine, air fuel ratio will be out.
Moreover, why do you need additional injectors? are you doing forced induction? Adding more fuel do not means more power, air fuel ratio have to be correct.
My friend did once. He change to bigger turbine and blew one engine. Then the next engine he added 2 more injectors and operate with a switch, but to be used only at high revs....very troublesome....

yes, im doing forced induction engine. Nevertheless it has been running with it before (my dad did it) and boosting up more than 1bar. Everything seems ok. The engine did not flood. The 4th injector (im using kancil) start to operate after 1bar with the control of pressure switch (hobbs switch). I throw out the extra injector few months ago due to redo the intercooler piping. Now I want to install them back. Last time the setup take electricity supply from battery but i want the 4th injector to be supply with electric pulse. By logic i want to take the electric pulse from the ecu (splice wiring one of the general injector). Or it will be better if i take the electric pulse supply direct from the distributer?

 

[vr2turbo]

Not too sure about wiring, but distributor will have 3 pulses, so which one?

 

[penagihdadih]

Not too sure about wiring, but distributor will have 3 pulses, so which one?

any will do.. or does it matter?

 

[vr2turbo]

any will do.. or does it matter?

Just that 4th injector feeds all 3 cylinders. How far away will the injector be located. Say take pulse from first one, division of fuel to the other two cylinders will be different, right?....my 2 sens on this...:hmmmm: