Ernest Harmon Posted September 2, 2010 Share Posted September 2, 2010 Can you purchase an all options included prebuilt board and use what you have and add fans etc as you go or does everything have to recieve a signal in order for the whole thing to work? Link to comment Share on other sites More sharing options...
OhBilly Posted September 2, 2010 Share Posted September 2, 2010 Can you purchase an all options included prebuilt board and use what you have and add fans etc as you go or does everything have to recieve a signal in order for the whole thing to work? DIYAutoTune.com sells prebuilt and complete boards. And no, you don't have to have everything working and receiving a signal for the complete unit to function. Link to comment Share on other sites More sharing options...
yhlz Posted September 23, 2010 Share Posted September 23, 2010 just a quick question. the Stock AFM tells the ECU the amount of air that is coming through. once you use megasquirt, the AFM is removed. What tells megasquirt the amount of air that comes in? the Manifold Absolute Pressor (MAP) sensor? Link to comment Share on other sites More sharing options...
Matt Cramer Posted September 27, 2010 Share Posted September 27, 2010 just a quick question. the Stock AFM tells the ECU the amount of air that is coming through. once you use megasquirt, the AFM is removed. What tells megasquirt the amount of air that comes in? the Manifold Absolute Pressor (MAP) sensor? Correct. It has a table of how much fuel to inject based on MAP sensor readings and RPM. Link to comment Share on other sites More sharing options...
scared0o0rabbit Posted November 1, 2010 Share Posted November 1, 2010 Hopefully this is a fairly simple question to answer, and I wasn't sure it needed it's own thread. I've got a megasquirt 2.2 sitting here unassembled. I'm planning on running ms'n's on it. I know this means I'll be sacrificing FIDLE, but what if any hardware modifications do I need to make from the instructions on building a stock unit as far as the mainboard and relay board? I'm not planning on running EDIS, so I'll be keeping a distributor since that seems like that keeps things simpler (unless I'm wrong). If there aren't any hardware modifications, then I can just build it up the way the instructions say, and then once I've got it done I just flash it with the new ms'n's code instead before it goes in the car, correct? Link to comment Share on other sites More sharing options...
Zmanco Posted November 3, 2010 Author Share Posted November 3, 2010 I think you'll find that very few of us will remember exactly how to modify a MS board within a few weeks after we've done it. Hence you should find the mod you're interested in on the MS site and use that to guide you. At times it can be a bit confusing to navigate, but the good news is that the site is much better now than it used to be in this regard and continues to improve. Other than that, your approach is correct. Build the board with whatever mods you need for your setup, then download the correct firmware to it, and install. Link to comment Share on other sites More sharing options...
J240ZTurbo Posted November 17, 2010 Share Posted November 17, 2010 zmanco you got pmd. Link to comment Share on other sites More sharing options...
cygnusx1 Posted January 8, 2011 Share Posted January 8, 2011 (edited) Here is something that often gets overlooked by the MS newbies, and the people giving advice. Before you buy, or decide on a unit... You CAN and you SHOULD go download the Megatune software, or tuning package, from DIY Autotune. It's FREE! DO install it on your PC or Mac, print out the manual, and start playing with the software while you learn it. Tuning starts to make much more sense when you get your hands on the software, play with it, and read the manual to it. You can't really tune without the MS unit and the Sim board attached, but you get to see the software run, and see how to enter values. Edited January 8, 2011 by cygnusx1 Link to comment Share on other sites More sharing options...
mario_82_ZXT Posted January 8, 2011 Share Posted January 8, 2011 That said, Tunerstudio is a lot nicer and more user friendly. It's a huge step forward and well worth the money. Of course you can get your MS running on megatune or the free tunerstudio too.. Link to comment Share on other sites More sharing options...
cygnusx1 Posted January 9, 2011 Share Posted January 9, 2011 (edited) Thanks Mario, I had no idea that there was a full version of Tuner Studio! I used the free one a little bit, but for some reason, my cheap laptop didn't get along with it that well. It chewed up some of my already good maps and left me scratching my head when the car wouldn't run all of a sudden, after a map change. If I ever get a better laptop, I'll try the full version. Edited January 9, 2011 by cygnusx1 Link to comment Share on other sites More sharing options...
davek Posted September 21, 2013 Share Posted September 21, 2013 nbesheer asked a valid question about passing CA emission testing. Nobody answered. I to am in process of choosing an EMS for my S30 I28ET swap. I live in a wonderful TN county that does not require emission testing but the next town over does. Someday I will move. Anyway. Does the emission test need to pass for a 1970-73 car? Do they plug into the ECU while testing? I suppose all states/counties are different. The big question--when tuned properly will the I28ETengine pass emission testing no matter where you live? If you can't license it what good is the project right? Or can you right a MAP tune to just pass the test? Then reload the good tune. Link to comment Share on other sites More sharing options...
SleeperZ Posted September 23, 2013 Share Posted September 23, 2013 (edited) A properly tuned and functioning L28 can be tuned to pass Federal emissions standards anywhere (for the model year). If you are in California, then you have to have a California model with the California emissions equipment. I am under the gun in Colorado; I have to test and pass by the end of September to keep my classic plate registration. I have not had to meet emissions for 10 years, but now I have to again. We shall see how well Megasquirt does. Edited September 23, 2013 by SleeperZ Link to comment Share on other sites More sharing options...
BLOZ UP Posted September 23, 2013 Share Posted September 23, 2013 Denatured Alchohol worked wonders for me, with 70% compression average on the cylinders and a cheap cat. Link to comment Share on other sites More sharing options...
serpentinebelt1978 Posted December 5, 2013 Share Posted December 5, 2013 I'm still considering a megasquirt, but I sometimes do like the idea of having carbs. Just a better noise mostly.. Link to comment Share on other sites More sharing options...
deuce8ernerozero Posted December 5, 2013 Share Posted December 5, 2013 That's why I'm going for an itb setup. If the bores are sized right you can get away with running in speed density mode. Link to comment Share on other sites More sharing options...
SleeperZ Posted December 6, 2013 Share Posted December 6, 2013 Denatured Alchohol worked wonders for me, with 70% compression average on the cylinders and a cheap cat. Not much you can do with a misfiring ignition... Link to comment Share on other sites More sharing options...
Project1 Posted January 25, 2015 Share Posted January 25, 2015 Zmanco, Thanks so much for taking the time to post this. It was well writen and organized and it really helped me understand this set up much better. Luke Link to comment Share on other sites More sharing options...
BLOZ UP Posted January 25, 2015 Share Posted January 25, 2015 It's pretty out of date now. Options now are: MS2 - $300 MS3 - Cost $400+, closed-hardware. MS3 w/MSX - $450+ allows sequential up to 12 cylinder and some other stuff TunerStudio MS is the only thing supported anymore (MegaTunix still works IIRC). TunerStudio is great software. Basically, for a few hundred more you can get a Haltech or other aftermarket ECU and have a real company to support you. Disclaimer: Getting kind of sick of the MS community. Link to comment Share on other sites More sharing options...
Project1 Posted January 25, 2015 Share Posted January 25, 2015 (edited) It's pretty out of date now. Options now are: MS2 - $300 MS3 - Cost $400+, closed-hardware. MS3 w/MSX - $450+ allows sequential up to 12 cylinder and some other stuff TunerStudio MS is the only thing supported anymore (MegaTunix still works IIRC). TunerStudio is great software. Basically, for a few hundred more you can get a Haltech or other aftermarket ECU and have a real company to support you. Disclaimer: Getting kind of sick of the MS community. Thanks for the update. I'm new to aftermarket ECU's. I look at Haltech. Edit: I looked at Haltech... not cheap. Edited January 25, 2015 by Project1 Link to comment Share on other sites More sharing options...
NewZed Posted January 25, 2015 Share Posted January 25, 2015 (edited) Cheapest Haltech is $854 - http://store.haltech.com/usastore/haltech-universal-ecu-kits/sprint.html DIYAutotune is a real company and Matt Cramer seems to do much more than many. Haven't seen any Haltech reps on the forum. Edited January 25, 2015 by NewZed Link to comment Share on other sites More sharing options...
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