haltech e6x question

[SeptemberSquall]

hi all,

just wanted to confirm some understandings after reading about the haltech e6x and equivalent microtech ecu

http://www.haltech.com/downloads/e6x_spec.pdf

im guessing that i could run one of these on a 6 cylinder engine but would need to run:
- waste spark, three pairs of coils, firing each cylinder twice per 720 degrees
- batch fire ignition, firing all injectors simultaneously, or perhaps firing injectors sequentially in two channels, meaning three injection events per cyl for each induction stroke

i realise that if this is possible, it will be suboptimal, however what will be the real world difference between this and true direct fire ignition and multi-point sequential injection?

thanks in advance,

michael

[Norbie]

Sequential ignition and injection has small benefits for fuel economy and, more importantly, exhaust emissions. That's why OEM's do it. Note that it only makes any difference at low engine speeds and low throttle openings. WOT performance will not be affected either way.

I'm running an E6K with waste spark and batch fire on my 2JZ, it drives nicely and performs very well indeed.

[thechuckster]

fwiw: there are growing numbers of V12s running MSEFI and MSExtra - and it's always been just 2 injector channels, waste-spark up to 6 channels (12 cyl) or direct fire for 6cyl max (uses up all the other outputs). Some of these are race-engines but plenty of the V8s, 6's and 4's are daily drivers and some have passed relevant local emissions tests in the US.