I'm not saying its the only tuning feature, or that this is just an advanced piggy back. I'm saying that this is an advanced (closed loop) control system, however that the MS2 is a more powerful control system. Unfortunately, I've got background in statespace (optimal) control, computer science and orbital mechanics. All these pretty much pull me into a more academic realm where I stay away from the "good enough" solution and attempt to go for the academically elegant solution. I guess that is why I have avoided all of the piggybacks and just throwing on components up to this point.
Glacius is right, getting way too complicated. 12x12 is plenty and since you can modify the bin values it works really well. Usually you need more bins around a "problem area" in the engine power band. You can modify them to suit. Most of the systems with really huge tables are fixed and all it does it require more effort to tune without any other real advantage.
Actually, this is something I didn't realize that you couldn't do with the larger tables. That seems pretty silly since I do it all the time in coming to optimal control solutions to orbital mechanics... put the points where the solution needs it to converge and then optimize correctly. Again, I'm still interested in this solution to the problem.
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I've been running the megasuqirt for almost 2 years. So far my only gripes with the MS1 hardware is the 0.1ms pulse width limitation. The idle with big injectors just isnt as smooth as it could be with the 0.001ms injector resolution of the MS2 chip. However, it's a small issue IMHO. The engine still runs and drives great with 0.1ms, it's just not "OEM" perfect.
That is something else I hadn't picked up on. Again something surfaces from my lack of working with real world components. I can see why a .1 ms would be a bit rough for big injectors.
I really do appreciate your more practical experience based knowledge in these things. I remember using control system theory to explain why his [my brother's] van's cruise control was an inferior system and how it could be improved with state specific knowledge of the vehicle right after my graduation. He was interested, but in the end asked if I could build a box that implements it and had to say "Um... No".
I think you're over complicating things. Why don't we get a few cars running basic megasquirts with the correct code before we try and get into things more advanced. You can ALWAYS upgrade later, but for the standard megasquirt running neon code is pretty stout and can handle the job.
Don't worry. I wasn't planning on running it anytime soon. I just thought that it was a mighty interesting little Cananadian(lol) project. I'm into simplifying the complicated myself. I seriously can't wait to start playing with the MS. I'm so tired of all the piggy back BS. Yeah it works to an extent, but it's too half ass for my tastes. And reading the msefi forum isn't enough for me anymore. I'm a hands on kind of guy.
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Glacius is right, getting way too complicated. 12x12 is plenty and since you can modify the bin values it works really well. Usually you need more bins around a "problem area" in the engine power band. You can modify them to suit. Most of the systems with really huge tables are fixed and all it does it require more effort to tune without any other real advantage.
I've been running the megasuqirt for almost 2 years. So far my only gripes with the MS1 hardware is the 0.1ms pulse width limitation. The idle with big injectors just isnt as smooth as it could be with the 0.001ms injector resolution of the MS2 chip. However, it's a small issue IMHO. The engine still runs and drives great with 0.1ms, it's just not "OEM" perfect.
MS2 is going to be really awesome once the software comes up to speed. I imagine the "extra" firmware for MS2 will be released sometime this year....
That's why I was debating over MS1 and MS2 (without knowing we could only use MS1 of course). The injector resolution was VERY enticing. Especially with the power output I plan on acheiving. I'm confident down the road after we get the NGC decoder firmware settled MS2 will obtain a level of development as to allow it's use in our vehicles. For now let's just get this thing working properly!
The PW resolution won't really have an impact on how much power it can make, really only the idle quality. However, I'm idling 780cc injectors @ 50psi without any issues...
The PW resolution won't really have an impact on how much power it can make, really only the idle quality. However, I'm idling 780cc injectors @ 50psi without any issues...
I was thinking more along the lines of 1000cc+. I can be pretty anal when it comes to driveability as well.
The PW resolution won't really have an impact on how much power it can make, really only the idle quality. However, I'm idling 780cc injectors @ 50psi without any issues...
I was thinking more along the lines of 1000cc+. I can be pretty anal when it comes to driveability as well.
You my friend better start praying for the "extra" firmware for the ms2 with those kind of injectors or you better hope for fuel atomization at like... 12 psi.. hah
Still shouldn't be that big of a deal. Might have to idle at 1200rpm but it will make tons of power for cheap. 8)
Hell yeah. I was really excited when I learned that this would cure my stumbling when cruising, I was even more excited when I learned that I can soon rev to 7k
i am also searching for a 7000 rpm redline, the bottom and top end are being rebuilt now very stout. then want to dump the DBB 50 and put a GT30 or 40 on. the extra RPM will help allot.
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I seriously can't wait to start playing with the MS. I'm so tired of all the piggy back BS. Yeah it works to an extent, but it's too half ass for my tastes. And reading the msefi forum isn't enough for me anymore. I'm a hands on kind of guy.
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