MS-II Sequencer
 

Who is getting ready to switch to MS-II sequencer? Ive started my homework on it and I'm discovering some neat features about it. I think I am going to order it as soon as it comes out.

link?
I'm not up and up on my MSII.

I can't afford it.

There are so few of us that are MS-II even that I can't imagine many people jumping on board, but if you do, please report back as we need people to pioneer (cough...cough....guinea pig:)) stuff like that. Hell, there was a time when going emanage was a big deal and MS-I wasn't even on the radar.

Hehehe...I know exactly what youre saying. I'm actually trying to pick out igntion components so I can take advantage of its COP feature and I mean individually fired COP. Its pretty interesting stuff.

I will as soon as I can afford it.

should be swopping to MSII over the christmas period too. exciting times for us DIY MegaSquirters :)

So this must be what became of the router board. My big attraction for the original router board concept was the ion sensing. That got dropped because there was trouble getting the crank angle measured accurately enough to do any good. Last spring (I think) I remember reading a post by either Bruce or Al that they may have solved that problem and there was some hope we might see ion sensing again. I didn't see any mention in the link that RDSnake posted, though.

For anyone that doesn't know, ion sensing has the potential to do for spark what wide bands have done for fuel. Perfect ignition timing without a dyno.

Other random bits of info: We would also need a capacitive discharge ignition (CDI) system to make use of it. I think, but cold be completely talking out my ass, that GM used a system like this around 2000 for mis-fire detection (no crank angle calculations).

On a completely separate note, I'm a little concerned that more and more MS parts are coming in SMT. I hope us DIY'er aren't forgotten.

BTW, I posted this last April and not one god damn response. I hate you guys.
https://www.miataturbo.net/forum/showthread.php?t=8831

You can do this with MS1, no 500$ board required.

Hehe, sorry, but that's a little over my head. I could offer you no advice other than give it a try and let me know if it works. :bigtu: Oh, your ion spark talk stuff sound really interesting. I'm gonna have to do some research on that. Let me know if you got any good links on it.

Comeon Arga we can't help it that we are both cheap and not bold enough to dabble in MS2

In layman's terms, what exactly is the benefit of this board?

fully sequential injection and ignition

Why would I want to step down to MS-I from MS-II?

You wouldn't, however since It has been done with no 500$ board on MS1, I am sure it can be done without a 500$ board on MS2.

You cannot be serious spending that kind of money on a megasquirt.

This is a direct quote from the megamanual website:
"The price for the MS-II Sequencer has not been set yet. Initial estimates are that it will be a 35 - 40% increase over the cost of MicroSquirt, since there are roughly 35% more components, and the added harness assembly, Ampseal connectors, assembly cost, and enclosure, plus the extra cost for the aluminum and panel cutout for the second connector. Since MicroSquirt retails for about $400, the estimated price is likely between $520 and $580. This could change somewhat, but is a reasonable ball-park figure. When pricing is finalized, it will be posted here."

How much is a MSPNP and what kind of MS would you get if you bought one?

Yeah - I was pretty excited about it, but I'm not sure about the mechanism they are going to use - it really seemed a lot more aimed at V-8s. I was a little worried about the accuracy of the whole thing. Like, do they really need to scale a factor of ten? And, what keeps MS limited to two channels, anyway? That doesn't make sense to me.

SMT isn't so bad, and you can still mod it. Sure, it's a little more of a pain, but not a lot more. Getting a board built then swaping a few things out is still possible. I almost did it on this one.

I, too, and really curious about this ion sensing. A lot of stuff gets done for emissions than have no benefit to power output... And generally mask problems (think MSD folks).

I guess you could technically build your own sequencer external box, but I wouldn't. :-)

It's a couple of things that limits the current model to two channels, mostly processor outputs and keeping the board backward compatible with MS-I. Each injector channel needs two outputs, one for the regular pulse and the other for PWM current limiting. Some people have talked about modifying an MS-II for sequential injection on four channels by adding peak and hold driver boards to it, but this may be some ways away.

The Sequencer was something Bowling & Grippo decided to build because there has been a lot of demand for sequential injection and the hardware was almost close enough to do this. So they gave it a little extra push to make it sequential. Ion sensing is going to require a much faster processor to make it effective. Bruce and Al haven't given up on ion sensing, but it's going to take a more powerful processor and more complex hardware to pull it off.

Matt Cramer:
Do you guys or MS retailers have a more definite ETA on the sequencer?