bmw v12 ignition edis

e34_drift · Post by **e34_drift** » Mon Jul 31, 2006 10:41 am

i am putting together a 5 liter v12 bmw engine with a vortech supercharger
Megasquirt 2.2
as is the engine runs as 2 m20 6 cylinder engines 2 crank sensors on the 60-2 wheel. 1 coil per side and one dis cap per side

now what my plan was pulling 2 edis 6 units and sensors and a 36-1 wheel feed the ms with the pip from one of the units and send the saw to both units but with the PIP and SAW needing to be synchronized so i dont thing that would work. can the MS take 2 pip and sent 2 saw

i would like to go coilpacks but is there any way of doing it and even working the 2 coils i am not sure how to do that. do i need to fit 2 Megasquirt one for each bank or what are my options
thank you

mops · Post by **mops** » Mon Jul 31, 2006 12:47 pm

checkiut bmw success stories. a guy got that engine running with 2 megasquirts....

e34_drift · Post by **e34_drift** » Mon Jul 31, 2006 1:05 pm

ya i PMed him but i think one uint would be much better
i have the engine running non supercharger now with 2 motronic e30 325 systems on it

mops · Post by **mops** » Mon Jul 31, 2006 1:15 pm

to be honest... if you are not running more than 8 psi of boost then those motronics will be fine... all you need is to tweak the afm spring (to get proper afr's), disconect timing WOT switch from TPS (to retard timing), RRFPR (to add extra fuel at boost)... that's it... no need for sustom ecu's... you might want to put something llike JC chip on those ecu's and put m20 cam's on that motor....

not sure how to handle that many cylinders with single MS... you cant use dizzy, cos there are two of them... I supposed two eids6 system hooked together somehow would work.... but i'm not sure, sorry...

e34_drift · Post by **e34_drift** » Mon Jul 31, 2006 1:53 pm

i dont really like the system also you would need to blow through the meters otherwise i could not get a even message between both sides. it would work fairly easy with a twin turbo setup and suck through the meters

two ignition amps off the same ecu output and run a waisted spark kind of a set up maybe

mops · Post by **mops** » Mon Jul 31, 2006 2:02 pm

e34_drift wrote:i dont really like the system also you would need to blow through the meters otherwise i could not get a even message between both sides. it would work fairly easy with a twin turbo setup and suck through the meters

thats what i'm saying.... to equ

e34_drift wrote:two ignition amps off the same ecu output and run a waisted spark kind of a set up maybe

wasted spark on v12 would require 6 ignition outputs...

checkout another ECU... i think it has 8 ignition outputs so you could run wasted spark and it's somewhat more expensive, but it includes wideband controller, so by the time you buy two ms2's and lc-1 you will spend more than once fully configured another ECU...

e34_drift · Post by **e34_drift** » Mon Jul 31, 2006 3:22 pm

you can run a ms to a jag v12 with one coil sending out 6 pulses per rpm could you set it up the same but send the message to both coils it mean there will be a spark sent to the cap then the rotor is between the points on one side when the other side is working
omex
another ECU
that is cool

qadir03 · Post by **qadir03** » Mon Jul 31, 2006 11:12 pm

Why not use the wheel decoder with the factory oem 60-2 wheel and the 6 ign outputs for a wasted spark setup. I am also gonna be installing MS on an M70 in the next month or so.

e34_drift · Post by **e34_drift** » Tue Aug 01, 2006 12:34 pm

so the ms has 6 ignition outputs that i can use if that is the case then great so what do i need just 2 sets of 6bank coil packs conected straight to the ms or so i still need to put in some kind of ignition amp????

mops · Post by **mops** » Tue Aug 01, 2006 12:50 pm

no, no, no....

MS does not have 6 coil drive outputs...

I think MS1/extra has 4, and that includes modifications to the board....

your idea with driving two coils form 1 output might or might not work.... depending on how much overlap there is in rotors....