Can the emerald m3d ecu run 8 injectors sequential (low - high) and 4 coils also sequential on 4wd cosworth?

 

I think it can do 8 injectors
and it can do 4 coils... but not sure if it do both at the same time

Tabetha will know.. as pin 17 of ecu is - injector driver5/ ignition driver 4

so it seems some of the wires might 'clash' lol

EDIT: just noticed you can configure other ecu pins for things.. so yeah should be able to do both.

 

Ok thanks about the info! Anyone else that is using this ECU can tell for sure: the 8 injectors must be sequential (high low) and if 4 coils possible also sequential or if not possible wasted spark then...

 

it cant run 8 in sequentail and only has 2 coil deivers , if this is what you want try a dta s60 or hunt arouind for a s/h autronic sm4 budget allowing

 

Ask Tabetha. He has had one surgicaly implanted up his arse.

 

I'll ask dave as I'm down there in a few mins.
Assuming you mean m3d proper then unlikely as older version, most likely at least need upgrading to newer K3 version, cost £30, don't know how much other ecu people charge for upgrades ?, but can only be done from certain number onwards, ie not all earlier ones can be but most, pm me your number.
tabetha

 

The newer K3 has 6 injector drivers and 3 ignition drivers.
So the injectors could certainly be run as you wish, but not really any point due to time running the 2nd set sequentially imo.
As regards ignition sequentially could be done if running 2nd set of injectors grouped but again imo little point with the kind of revs cossie's get to.
Still there you are your choice.
If you already have an earlier ecu, it may be possible to upgrade, depending on how old to K3 spec, would need ecu details.
tabetha

 

Thanks Tabetha! No I don't have the ECU and I am collecting info to help me decide which one to buy but the emerald has addaptive mapping and you can select different maps that is why I 'm thinking for the emerald. Before I was thinking about DTA S80. Pros and cons between Emerald and Dta ecu?
Basicaly what I need from the Ecu is to drive the low delivery injectors sequential and then when demanded to switch from low to high and run them also sequential for better fuel economy. If 4 coil are going to be used then they must be sequential or else wasted spark (or can it be possible to have 4 coils and use them as pairs like wasted spark - I like all the spark energy from the coil to be delivered to the spark plug and not devided to two plugs). Thanks for any info!

 

http://www.gems.co.uk/?content=pages&id=em36

this will do all you asked.

 

couldn't you have a relay to switch the power feed to the different injector sets controlled by the ecu so you would still only need 4 injector drivers?

 

dave walker is the guy you need to speak too , he makes these ecu

can aslo custom one if needed

marco

 

Price for the Gems EM36? It looks a bit difficult to map it though...

 

the new GEMS software is very easy to work with, and is up there with your motecs, SQ series pectels, life racings etc.

 

If it so expensive as a motec then I can not afford it. If it was 1000 - 1500euro then ok but 3000euro is quite much for me since 3000euro is the limit I putted for ECU and live mapping together (live mapping costs 1000 to 1500euro to a good tuner here).

 

you will be happy with your pm then

 

NO point in sequentially firing outer 4 injectors for economy, have to think about time the injector has to work.
The changeover can be set in a number of different ways ie phased in, forced crossover when going from high to low and low to high.
The coils if you insisted on coil on plug could be paired.
The point about wasted spark is it's great at rpm's that cossie do, the "wasted" spark draws so little power to spark not being under compression that it takes away very little spark energy from coil.
Unless you are running mega high rpms constantly ie 10,000+ all the time coil on plug is going to give no advantage.
If you are insistent on all things being sequential then look at DTA/OMEX etc, but you won't find that many drivers in the same price range.
Karl does the ecu's, dave the rollers, karl has modded ecu's before to run some very odd things, but most likely wouldn't be cost effective over another off the shlef system with more drivers to start with.
tabetha

 

The big size injectors would be ok for fuel economy if not sequential and you are meaning to drive them grouped (1 - 4 & 2 - 3)? I like coil per plug for this reason: I will not having spark plug cables in the engine bay so less electrical noise and more spark energy to the plug. One last thing: The original MAP, TPS, ACT, CTS, CPS and phase sensor can be still used with the emerald ecu? To be honest now I am between theese two ECU's : Emerald and Gems and the only thing that the gems is not having is 2 different maps , all the other features completely covered.

 

Yes will run all the oe sensors, or pretty much any other type you want to fit, but not with std 4 lug pulley, when I machined my lugs off and welded the trigger ring on(36-1) it lined up perfect with the std sensor no mods needed at all, didn't even need to adjust the gap as was still plenty close enough, think it was 5.125" I used.
tabetha