Rb30 Crank Trigger No Cas ?

[15nuts]

Heu guys , im abit confused with this crank trigger ecu and loom iv perched .(microtech lt8s)

what I dont understand is it appears that it doesnt run the cas in the dizzy and has a billet cap with a seal that fits into the distributor hole in the head , with a separate loom from the main loom straight from crank trigger to the ecu , it also came with another loom from cas in dizzy to ecu witch is marked (cas if crank trigger unused)

So I did abit of research and have only come across threads saying it needs to run the cas in the dizzy and no ones seen or no of anyone removing the distributor completely to run only a crank trigger set up so I finally made my way to u guys. ????? So any input would be great

[15nuts]

Oh and its for an rb30 vl turbo

[Ben C34]

It would have to be a waste spark and batch fire Injector setup as it doesn't know ow which cylinder is on the power stroke.

[Ben C34]

Oh, rb30 means I waste spark required as the distributor takes care of that.

[15nuts]

So batch injection would mean firing 2 injectors at a time right ?what r the pros and cons of this ?would there be any power loss or gain ?with having fuel built up waiting for the valves to open?

And as it was set up with the microtech x6 would this mean it still ren sequential ignition?

Or would this not work with no cas

[zoomzoom]

So batch injection would mean firing 2 injectors at a time right ?what r the pros and cons of this ?would there be any power loss or gain ?with having fuel built up waiting for the valves to open?

Im running semi sequential injection on an RB25 and it seems to have mainly an effect on low load and low rpm AFRs, throttle response and also idle quality. I wish I had full sequential control, as such I would skip batch injection.

[zoomzoom]

So batch injection would mean firing 2 injectors at a time right ?what r the pros and cons of this ?would there be any power loss or gain ?with having fuel built up waiting for the valves to open?

And as it was set up with the microtech x6 would this mean it still ren sequential ignition?

Or would this not work with no cas

Just reading this again...semi sequential would mean firing groups of injectors. Mine are paired 1-5, 3-6, 2-4. Instead of pairing them like wasted spark where the cylinders are in the same position, the idea with injection is to inject fuel for 1 cylinder, then the next opening cylinder. (it works alright, but still a step down from fully sequential, for the reasons I listed above) As I understand, batch fire would be firing all injectors at a certain point.

[15nuts]

Just reading this again...semi sequential would mean firing groups of injectors. Mine are paired 1-5, 3-6, 2-4. Instead of pairing them like wasted spark where the cylinders are in the same position, the idea with injection is to inject fuel for 1 cylinder, then the next opening cylinder. (it works alright, but still a step down from fully sequential, for the reasons I listed above) As I understand, batch fire would be firing all injectors at a certain point.

im following ya .1-5 3-6 2-4 as the firing order is 153624 so the next cylinder has fuel ready to be sucked in .r the down sides all that noticeable in street driving ? Or just on dyno figures?

I think iv read that na rb30s run semi sequential and rb30turbos run full sequential ?

Both I believe rely on a reference from a cas so id be right on asuming that nether of them could of been how my set up was configured

[zoomzoom]

Im using my setup on my daily run around. There doesnt seem to be any problem once the engine is over 1200rpm, plus I get decent fuel economy too.

As for dyno figures, the difference between fully sequential and semi sequential is hardly a concern, as the engine is at such high RPM and rich AFRs anyways.

Having full sequential control over the injection timing can help to run closer to stoich AFRs at idle while still remaining smooth. Getting smooth cold starts can be tricky and it helps to have more control (although that will be ECU dependant).