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    Thread: Megasquirt is ridiculously addictive!

    1. Geriatric Member ATL_Av8r's Avatar
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      10-02-2012 02:06 PM #26
      But is it overclocked?
      MemeGate 2012 - First Responder, post #2

      Quote Originally Posted by .skully.
      Mike, quote me in your signature

    2. 10-02-2012 02:13 PM #27
      That's pretty awesome.


      Why did I immediately go to the website and find a car which start a new project? lol

    3. Member corradoswapT's Avatar
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      10-02-2012 02:15 PM #28
      I ran megasquirt for about 5 years and finally got sick of retunning every 4 months as the seasons changed. plus with all the elevation changes around Utah it just wasnt practical. It works very well for race aplications but as a daily driver, forget it! I just switched to obdII and called it a day!

    4. Member QWKDTSN's Avatar
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      10-02-2012 02:23 PM #29
      Quote Originally Posted by r_fostoria View Post
      Wait, wait, wait! Did you just build a car ECU from scratch? Is that what's going on here?
      Yes, but I made the thread mostly about how much fun it is to tune a car ECU yourself. The fact that I built it myself is secondary. It's not like I designed the circuit board myself, much smarter people did all that for me and included instructions about which parts go where.



      Quote Originally Posted by surefooted View Post
      That's pretty awesome.


      Why did I immediately go to the website and find a car which start a new project? lol
      Do iiiiiiiit There are so many cars that the DIY Autotune boxes support! And many of them are TCL darlings as well!

      Quote Originally Posted by corradoswapT View Post
      I ran megasquirt for about 5 years and finally got sick of retunning every 4 months as the seasons changed. plus with all the elevation changes around Utah it just wasnt practical. It works very well for race aplications but as a daily driver, forget it! I just switched to obdII and called it a day!
      I understand, there are fixes for all the problems you listed (you can upgrade the MAP system to automatically correct for altitude) and a large part is correcting your MAT table so that temperature fluctuations are automatically taken care of. But I can understand how many people would not want to deal with this on a daily driver.

    5. Member GoHomePossum's Avatar
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      10-02-2012 02:24 PM #30
      Quote Originally Posted by McBanagon View Post
      I've a large home-made CNC machine. Will that do?
      Wow. You should post a build thread sometime - sounds cool
      I'm a Bedwetta until I buy a Beretta

    6. Member QWKDTSN's Avatar
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      10-02-2012 02:30 PM #31
      Quote Originally Posted by vasillalov View Post
      Does Megasquirt support direct injection?
      It should, the code is very versatile, it could probably be used to run anything from a weedwhacker to a turbocharged V12.

    7. Member corradoswapT's Avatar
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      10-02-2012 02:30 PM #32
      It was ms1 with some upgraded bits. I do miss it sometimes tho. I had a nice 3 stage shift light set up, launch controll,flat shift and boost controll. all things obdII cant do without seperate electronics.

    8. Member QWKDTSN's Avatar
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      10-02-2012 02:44 PM #33
      Quote Originally Posted by corradoswapT View Post
      It was ms1 with some upgraded bits. I do miss it sometimes tho. I had a nice 3 stage shift light set up, launch controll,flat shift and boost controll. all things obdII cant do without seperate electronics.
      That is awesome. I don't have a clutch switch set up to the ECU so I can't do any of that awesomeness right now.

      I have never touched MS1 but things have come a long way since then. I am using firmware created by 'gslender' who is an Australian modder, he writes his own upgrades to the code and the number of features that are available now is pretty insane.

    9. Member turbinepowered's Avatar
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      10-02-2012 03:02 PM #34
      Quote Originally Posted by vasillalov View Post
      Does Megasquirt support direct injection?
      MS3 is supposed to be able to do it; you need full sequential control to do direct injection.

      Rumor has it that the next version will also be able to control CR diesels...
      Quote Originally Posted by zukiphile View Post
      There is an area of a normal brain that lets the owner know the object works and needs to be left alone. Not all of us have it. It is like being colorblind.

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      10-02-2012 03:04 PM #35
      Quote Originally Posted by QWKDTSN View Post
      Yes, but I made the thread mostly about how much fun it is to tune a car ECU yourself. The fact that I built it myself is secondary. It's not like I designed the circuit board myself, much smarter people did all that for me and included instructions about which parts go where.
      Yes, but the important thing is that Barry, who swore that modern cars were all disposable because of electronic components going bad and having no replacement, has been proven wrong way ahead of schedule.

    11. Member GoHomePossum's Avatar
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      10-02-2012 03:09 PM #36
      Quote Originally Posted by r_fostoria View Post
      Yes, but the important thing is that Barry, who swore that modern cars were all disposable because of electronic components going bad and having no replacement, has been proven wrong way ahead of schedule.
      It's not polite to make fun of the older people.
      I'm a Bedwetta until I buy a Beretta

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      10-02-2012 03:13 PM #37
      Quote Originally Posted by emmettlodge View Post
      It's not polite to make fun of the older people.

    13. Member MAG58's Avatar
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      10-02-2012 04:51 PM #38
      Quote Originally Posted by turbinepowered View Post
      MS3 is supposed to be able to do it; you need full sequential control to do direct injection.

      Rumor has it that the next version will also be able to control CR diesels...
      Both of these are currently false and will require quite a bit of coding and supplemental drivers to handle the task. DI and CRD's both require much higher frequency and output voltage than MSIII is capable of supplying. Also both require multiple injections/cycle as well as a variable injection timing. Something MS is currently not capable of doing. I believe the MSIII chip has the processing power to do so, but if it is ever supported it is a LONG way off. The same with DBW, although the issues with DBW are a bit simpler to implement and there are a few solutions that people are in the process of working through for these engines.

      CAN-Bus which will be required to run on pretty much all newer vehicles also poses a problem that I'm starting to work on in that the MSIII CAN protocol requires a great deal of work to get to work with either automotive or J1939 CAN protocols, especially those running the 29bit extended header as opposed to the 11bit base CAN protocol. While there is CAN chips on board there is currently very little support. For those of use with disillusions of running many diesels or diesel VGT's on their vehicles, having CAN, especially J1939 support is essential.

    14. Member turbinepowered's Avatar
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      10-02-2012 05:38 PM #39
      Quote Originally Posted by ravera View Post
      Both of these are currently false and will require quite a bit of coding and supplemental drivers to handle the task. DI and CRD's both require much higher frequency and output voltage than MSIII is capable of supplying. Also both require multiple injections/cycle as well as a variable injection timing. Something MS is currently not capable of doing. I believe the MSIII chip has the processing power to do so, but if it is ever supported it is a LONG way off. The same with DBW, although the issues with DBW are a bit simpler to implement and there are a few solutions that people are in the process of working through for these engines.

      CAN-Bus which will be required to run on pretty much all newer vehicles also poses a problem that I'm starting to work on in that the MSIII CAN protocol requires a great deal of work to get to work with either automotive or J1939 CAN protocols, especially those running the 29bit extended header as opposed to the 11bit base CAN protocol. While there is CAN chips on board there is currently very little support. For those of use with illusions of running many diesels or diesel VGT's on their vehicles, having CAN, especially J1939 support is essential.
      Okay. I wasn't sure, good to know.
      Quote Originally Posted by zukiphile View Post
      There is an area of a normal brain that lets the owner know the object works and needs to be left alone. Not all of us have it. It is like being colorblind.

    15. 10-03-2012 09:55 PM #40
      megasqirt is a decent standalone, but for the about the same price you could go VEMS, in my option a much better system, and you dont even need to make it yourself.
      I'm a certified vw/mazda dealer tech and I run a modification shop on the side.
      02 beetle tdi,00 jetta 2x4, 92 miata,,30 pontiac.

    16. Moderator rs4-380's Avatar
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      10-03-2012 10:14 PM #41
      standalone is fun, but be careful, it's just as easy to blow something up.
      Dave

    17. Member x(why)z's Avatar
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      10-03-2012 10:23 PM #42
      This is awesome. As a new-media artist I work with this kind of stuff everyday. I've oddly never considered using my skills like this though.... Now if my car weren't impounded by the lovely city of Buffalo due to a complaint by a neighbour who thought it was abandoned (I've been using transit, bike, etc), I'd give this a shot this weekend.

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      10-03-2012 10:56 PM #43
      I just want to go on record to say that radiator looks to be at end of service life. They're brittle.

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      10-03-2012 11:07 PM #44
      Very cool. It's giving me some inspiration to go ahead with a B20 vtec build or maybe even some forced induction sooner than later. Though in my application I won't go with MS.

    20. Member vasillalov's Avatar
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      10-03-2012 11:42 PM #45
      Quote Originally Posted by turbinepowered View Post
      MS3 is supposed to be able to do it; you need full sequential control to do direct injection.

      Rumor has it that the next version will also be able to control CR diesels...
      I am not sure what you mean by "full sequential control" here but I do know that the DME for the N54 and N55 engines has some insane logic and functionality in regards to fueling. Not only that each individual injector is controlled separately but its operating parameters must be programmed into the DME. The DME knows precisely how much fuel is going into each cylinder at any given time. It even drives the injectors differently based on combustion chamber temperatures.
      Quote Originally Posted by MAG58 View Post
      Please consider your audience before saying something sensible. 80% of TCL drivers were actually banned from Formula 1 for being too fast.
      A turbocharger is a device in where exhaust gases go in, witchcraft happens, and then you go faster.

    21. Member ABATurbo's Avatar
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      10-04-2012 04:34 AM #46
      I just found out that lugtronic makes a PNP standalone system for my gti. PNP, like one plug and you're ready to go.

      1. plug in standalone
      2. reconnect stock ecu for emissions testing
      3. ???
      4. profit

    22. Member QWKDTSN's Avatar
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      10-04-2012 07:40 AM #47
      Quote Originally Posted by rs4-380 View Post
      standalone is fun, but be careful, it's just as easy to blow something up.
      I was very concerned about this, especially considering that my car is boosted, but I have been very careful and all is well. The Miata is pretty easy because there is a great starting map and you just run the autotune software to dial in the VE table to your particular car. I haven't touched the timing map, which is pretty conservative. I would let a skilled dyno tuner adjust the timing map.

      Quote Originally Posted by Diamond Dave View Post
      I just want to go on record to say that radiator looks to be at end of service life. They're brittle.
      I bought a Mishimoto rad, it's sitting in the corner, unfortunately I wasn't paying close enough attention and it is for an NB Miata

    23. Member MAG58's Avatar
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      10-04-2012 08:15 AM #48
      Quote Originally Posted by elmer fud View Post
      megasqirt is a decent standalone, but for the about the same price you could go VEMS, in my option a much better system, and you dont even need to make it yourself.
      I respectfully disagree. Up until MSIII, the latest iteration of VEMS allowed for more functionality at what ended up being a MSIII price. With MS3x out now, MSIII is one of the most powerful ECU's per dollar out now. VEMS is still a very good system but the MS family is significantly more easily scaled to meet the end user's needs currently IMO.

      Quote Originally Posted by vasillalov View Post
      I am not sure what you mean by "full sequential control" here but I do know that the DME for the N54 and N55 engines has some insane logic and functionality in regards to fueling. Not only that each individual injector is controlled separately but its operating parameters must be programmed into the DME. The DME knows precisely how much fuel is going into each cylinder at any given time. It even drives the injectors differently based on combustion chamber temperatures.
      Exactly. Modern DI engines are running a lot of calculations and have incredibly tightly controlled injection events. Megasquirt at the current isn't anywhere near where the code required to do so. That said, the amount of demand for direct injection is just a drop in the bucket compared to the users that request a standalone for older vehicles. There's also going to have to be a significant amount of innovation on the CAN communication side if MS wants to be integrated into new cars. However the demand for that is extremely low, especially once you consider the amount of work and development required that any options you see from the MS fans is many years off.

    24. Member lorge1989's Avatar
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      10-04-2012 08:28 AM #49
      So are you running MS3? I wonder how many features you lose going will the original, MS1. I'm thinking about using it on a swap, but I don't want to limit myself with what I can do.

      It will be a turbo 4 if that makes any difference. I'd love to make a digital dash like you show.

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      10-04-2012 08:43 AM #50

      Can you make it show this?

      Classicmotoringllc.com - my new brokerage and consulting business based out of a lavishly converted first floor bedroom in Allentown, PA. I am always looking for quality enthusiast cars to consign, research projects or consultation opportunities. Keep an eye on my page as you can see my blabberings about cars and other such junk in the blog section!

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