Efi, Electronic Dizzy Needed?

[beerhead]

:yes: Taz, Maybe need was the wrong word, I should have said want.

 

Maybe you don't mind batch fire, wasting 10% of your fuel, using late 1970's style efi and having timing that jumps around constantly, but I was giving advice that is the most modern approach to how you can get the best economy and power. Sequential injection done correctly will also yield more power, as any decent late model ecu allows you to throw the fuel in exactly as the valve opens, giving you much better atomisation. I loath batch fire, as the fuel just pools in your ports until the valve opens.

[Taz_Rx]

Point taken. :yes:

 

I should have thought more about using the 7ke dizzy and the fact that it still has a cap for spark distrobution. You would want to double check that the 7ke dizzy is infact dual pulse triggering otherwise there be no point in using it over a 5k elec dizzy.

I actually have a custom made K series hall effects crank angle sensor in the shed which I've been contimplating using. It would be great to have the dual pulse to run sequential injection yes, but my problem is it doesn't have a cap for distro duties. I just don't know wheather its worth having to buy another 3x coils and ignitors to run a multi coil setup when the ignition could potentially punch more spark with a single coil, dizzy cap and an MSD 6A. The next thing that crosses my mind is just getting one of the digital 7 series units which can give me CDi to those 4x coils. :hmm: But thats another $1k odd.

 

When I wired the ECU into the engine bay I though ahead a bit and wired the injectors for sequential, they're just set in the ECU config as batch for now. I also wired the 4x ignition triggers to where I would mount the 4x coils so I'm have ready for it already.

 

I actually also wouldn't mind trying to find a set of the all-in-one coil/ignitor/plug lead split fire type coil packs you see on SR's, RB's etc buts a matter of finding something that will sit into the K plug tubes nicely.

Edited May 10, 2010 by Taz_Rx

[beerhead]

A mates 1J was making 90HP a cylinder on stock coils so CDI as much as it kicks ass probably won't be needed unless your planning to run a GT35 on your K motor :blinks: If it aint running out of spark it's just an expensive overkill.

 

I'm 99% sure the 7KE will be a 24 - 2 trigger setup. 98 model motor, no way batch fire can pass late 90's emissions. Problem with a crank trigger is you can only run wasted spark and 2 banks of injectors, still needs a cam reset trigger. Ah just thought of it then - You could keep your dizzy and grind off 3 out of the 4 points and fit the crank pickup. Multi tooth wheel and a cam trigger is possible with what you have already! Not sure if you can mix and match trigger systems on your ecu though, adaptronic def can. So you might need to retrofit a hall effect into the dizzy to make it work. Makes the 7KE dizzy sound like a much simpler solution...