Injector wiring sequence ?

[mighty kitten]

Just starting the engine loom for my tt 1uzfe and am wondering if there is any advantage in wiring the injectors to follow the firing order as i only have 2 injector outputs so either wire them in two banks odd and even or stagger them between banks following the firing order .


I'm not convinced it would make any difference but might make idle a bit smoother ?

Edited by mighty kitten on Monday 19th May 22:43

[stevieturbo]

It's batch fire regardless, so it'll always be firing wrong somewhere...or everywhere.

I really wouldnt worry about it. Wire to make wiring easy with less potential for faults.

[Thom]

How many ignition outputs do you have?

Last time I wired a V8 using 4 injector outputs I paired the injectors in parallel to the 4 ignition drives (wasted spark), but had problem with fuel igniting during the exhaust stroke when running too little spark advance - you don't want the wasted spark to be unwasted

With 2 fewer injection drives you are going to inject even more fuel at the wrong moments.

[spitfire4v8]

things would get messy if you have lambda feedback per bank ..

[DVandrews]

stevieturbo said:

It's batch fire regardless, so it'll always be firing wrong somewhere...or everywhere.

I really wouldnt worry about it. Wire to make wiring easy with less potential for faults.

It'll group fire, two groups of 4.

Dave

[mighty kitten]

stevieturbo said:

It's batch fire regardless, so it'll always be firing wrong somewhere...or everywhere.

I really wouldnt worry about it. Wire to make wiring easy with less potential for faults.

That's what I was thinking just do the two banks .

I can see the thinking behind it for idle but as said its still firing some injectors when it doesn't need to and It's not a big budget car so il keep it simple .

Hot rods are supposed to sound lumpy anyway