no, you do not have to run COP - I wouldn't even recomend it realy, there isn't a big advantage and it uses a lot of output pins that could be better used elsewhere. the stock coil works fine for almost any M20 (even turbo), or a good compromise like wasted spark with 3 coils (which is nice to eliminate the mechanical wear you get with a cap/rotor system).
the only real disadvantage to tuning with 2 injector outputs is in low load/low RPM areas and idle. Especially as injectors get bigger, their pulswidths start to shrink making low-load tuning more difficult to control with batched injection. But it's not impossible - MS2/e supports semi-sequential at least, which is the same thing BMW used on the M20 (motronic 1.3), and it's plenty smooth. at higher loads and full throttle the injectors are mostly on all the time anyway, so the timing of them doesn't matter as much - basically it's not going to make any difference in peak power, only smoothness and economy/emissions. That said, I'd *love* to have 6 full sequential injector outputs, but my car is daily. if it were a track car, I wouldn't care at all.
MS does use a VE table for fuel, and there are a few ways to get around the MAP problem with ITBs. MS1/extra supports blended alpha-n/speed density directly, MS2/extra doesn't officially support it but there's a neat trick you can use with dual VE tables to blend the two together. I would definitely reccomend learning the system on a stock motor with the stock intake - cuts down on variables and makes it easier to tune while you are learning.
as far as ely - he's pretty knowledgable on MS. I'd definitely reccomend hitting him up, he even builds a trick plug and play setup that uses the stock wiring harness to cut down on setup time & troubleshooting.
the only real disadvantage to tuning with 2 injector outputs is in low load/low RPM areas and idle. Especially as injectors get bigger, their pulswidths start to shrink making low-load tuning more difficult to control with batched injection. But it's not impossible - MS2/e supports semi-sequential at least, which is the same thing BMW used on the M20 (motronic 1.3), and it's plenty smooth. at higher loads and full throttle the injectors are mostly on all the time anyway, so the timing of them doesn't matter as much - basically it's not going to make any difference in peak power, only smoothness and economy/emissions. That said, I'd *love* to have 6 full sequential injector outputs, but my car is daily. if it were a track car, I wouldn't care at all.
MS does use a VE table for fuel, and there are a few ways to get around the MAP problem with ITBs. MS1/extra supports blended alpha-n/speed density directly, MS2/extra doesn't officially support it but there's a neat trick you can use with dual VE tables to blend the two together. I would definitely reccomend learning the system on a stock motor with the stock intake - cuts down on variables and makes it easier to tune while you are learning.
as far as ely - he's pretty knowledgable on MS. I'd definitely reccomend hitting him up, he even builds a trick plug and play setup that uses the stock wiring harness to cut down on setup time & troubleshooting.
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