Connor280ZX Posted February 18, 2014 Share Posted February 18, 2014 Alright, i'm on a budget which is why i'm deciding on MS1, and this car is also N/A, so i don't think ill need all of the optional whistles and bells in MS. Here's my understanding of what i'll need: -MS1 ECU PCB 3.57 (Of course) -240SX TPS -IAT -8ft Harness Am i missing anything? Will i be able to use my factory engine hardware with MS? (Injectors, fuel rail, EGR vavle etc.) Quote Link to comment Share on other sites More sharing options...
str8pipez Posted February 18, 2014 Share Posted February 18, 2014 Look one post below yours. Quote Link to comment Share on other sites More sharing options...
dexter72 Posted February 18, 2014 Share Posted February 18, 2014 (edited) You should read the Megamanual 15 times, then go back and read it again 5 times. It is your bible and your friend. You also have to decide quite a few things. Are you putting the unit together yourself or are you buying an assembled unit??.. you should get a stim unit to check your progress as you go along, if your soldering it up yourself. You have to decide how you want the unit to provide spark. You have to decide what component you want to use, like the bip, then what system are you going to use. Turbo dist, or Coil on plug or Wasted spark. Are you doing fuel only or ignition and fuel??. You can use high impedence injectors or low impedence injectors with megasquirt, but you have to decide which ones to use and set the unit settings for either ones. To me its easier to set the unit up for high impedence injectors, less you have to do if you ever go turbo and have to go with higher cc injectors. Buy some quick disconnect connectors for your injectors and temp sensor. The factory ones are most likely broken or corroded. To use zx injectors you need dropping resisters for the injectors. Megasquirt only uses electrical signals, Egr or fuel rail are not affected. You don't need the Afm anymore. Most of this info is in the Megamanual or DIY Edited February 18, 2014 by dexter72 Quote Link to comment Share on other sites More sharing options...
Metro Posted February 18, 2014 Share Posted February 18, 2014 Yeah there's a surprising amount of info to read. On the front page of this very forum in fact. But anyway, I wouldn't recommend getting a v3.57 board. It will really limit what you can do with it down the road if you want to make any changes. Stick to the v3.0 board. Quote Link to comment Share on other sites More sharing options...
Connor280ZX Posted February 18, 2014 Author Share Posted February 18, 2014 Look one post below yours. Yes, i did look at that post but he is using the latest MS3 with a turbo setup... So i assume the installation process will differ quite a bit from mine. You should read the Megamanual 15 times, then go back and read it again 5 times. It is your bible and your friend. You also have to decide quite a few things. Are you putting the unit together yourself or are you buying an assembled unit??.. you should get a stim unit to check your progress as you go along, if your soldering it up yourself. You have to decide how you want the unit to provide spark. You have to decide what component you want to use, like the bip, then what system are you going to use. Turbo dist, or Coil on plug or Wasted spark. Are you doing fuel only or ignition and fuel??. You can use high impedence injectors or low impedence injectors with megasquirt, but you have to decide which ones to use and set the unit settings for either ones. To me its easier to set the unit up for high impedence injectors, less you have to do if you ever go turbo and have to go with higher cc injectors. Buy some quick disconnect connectors for your injectors and temp sensor. The factory ones are most likely broken or corroded. To use zx injectors you need dropping resisters for the injectors. Megasquirt only uses electrical signals, Egr or fuel rail are not affected. You don't need the Afm anymore. Most of this info is in the Megamanual or DIY I will for sure be buying a pre-assembled unit. I'm not the best electrician, haha. I want to control fuel and ignition. I am going to stick with my trusty Ignition coil. I've heard it's reccomended to use a Turbo ZX dizzy, or an 82-83 dizzy, but would one from a Turbo give me better results? The car is a 1981 btw. I would prefer to use my stock injectors if possible. All connectors will be replaced. Dropping resistors... Each injector will need an individual one? I assume i could tap them in to the injector harness. Quote Link to comment Share on other sites More sharing options...
Connor280ZX Posted February 18, 2014 Author Share Posted February 18, 2014 Yeah there's a surprising amount of info to read. On the front page of this very forum in fact. But anyway, I wouldn't recommend getting a v3.57 board. It will really limit what you can do with it down the road if you want to make any changes. Stick to the v3.0 board. Hmmm, alright i'll take your word for it. Thanks for the tip. Quote Link to comment Share on other sites More sharing options...
skirkland1980 Posted February 18, 2014 Share Posted February 18, 2014 V3.57 only comes in ms2 I think. Quote Link to comment Share on other sites More sharing options...
Connor280ZX Posted February 18, 2014 Author Share Posted February 18, 2014 V3.57 only comes in ms2 I think. DIYAT sells MS1 With the 3.57 board now. Did some more sniffing around, seems like the 3.57 version is tricky to tune and some people have more problems with it, so i'm gonna look at the 3.0 version. Quote Link to comment Share on other sites More sharing options...
mattb3562 Posted February 19, 2014 Share Posted February 19, 2014 You also need an IAT sensor and temp sensor that van be calibrated with the MS Quote Link to comment Share on other sites More sharing options...
mattb3562 Posted February 19, 2014 Share Posted February 19, 2014 Oh, sorry, I now see you have that figured in... Quote Link to comment Share on other sites More sharing options...
Matt Cramer Posted February 19, 2014 Share Posted February 19, 2014 (edited) DIYAT sells MS1 With the 3.57 board now. Did some more sniffing around, seems like the 3.57 version is tricky to tune and some people have more problems with it, so i'm gonna look at the 3.0 version. About the only difference is one resistor on the VR conditioner input; if you run into problems with it, you can add a 10K resistor inline with the VR sensor to get the same behavior as a V3.0. MS1 V3.57s don't sell very much for some reason. Most people who go for an assembled unit either go for an MS1 V2.2, or an MS2 on the V3.57 board. I can understand why some people figure the MS1 V3.57 doesn't exist; it's pretty rare. Edited February 19, 2014 by Matt Cramer Quote Link to comment Share on other sites More sharing options...
Connor280ZX Posted February 19, 2014 Author Share Posted February 19, 2014 You also need an IAT sensor and temp sensor that van be calibrated with the MS the CHTS be hooked up as a temp sensor though right? Quote Link to comment Share on other sites More sharing options...
NewZed Posted February 19, 2014 Share Posted February 19, 2014 Spell out the words of the acronym - CHTS. C = cylinder, H = head, ... Quote Link to comment Share on other sites More sharing options...
Connor280ZX Posted February 20, 2014 Author Share Posted February 20, 2014 Spell out the words of the acronym - CHTS. C = cylinder, H = head, ...Umm yeah, haha. What I was getting at was instead of installing one somewhere, that I could use an existing one, which yes I found out that the CHTS will work. Do you know the dimensions of the MS ECU? Quote Link to comment Share on other sites More sharing options...
Matt Cramer Posted February 26, 2014 Share Posted February 26, 2014 It's roughly 6.5" long, 4" wide, and just under 2" tall. Quote Link to comment Share on other sites More sharing options...
Connor280ZX Posted February 27, 2014 Author Share Posted February 27, 2014 It's roughly 6.5" long, 4" wide, and just under 2" tall. Sweet, thanks! I might just be able to fit the MS ECU where the factory ECU is if i'm lucky. Does MS1 3.0 also control spark out of the box, or will additional software be needed? Quote Link to comment Share on other sites More sharing options...
dexter72 Posted February 27, 2014 Share Posted February 27, 2014 It should fit just fine, I mounted mine in the spot where the ecu would have been, had the 260z had efi in America. Not sure if the 260z overseas model had efi. Unless DIY has changed its website, If you are buying an assembled unit from them, then you tell them the one of two ways you want the unit to control spark output. That used to be in there Faq section, should be on there website somewhere. Quote Link to comment Share on other sites More sharing options...
Matt Cramer Posted February 27, 2014 Share Posted February 27, 2014 Our assembled MS1s are set up for fuel only unless special ordered otherwise. Quote Link to comment Share on other sites More sharing options...
dexter72 Posted February 27, 2014 Share Posted February 27, 2014 Hi Matt, that is only for MS1 ??.. I am positive i read on DIY site that you could have the assembled MS unit, set up one of two ways for spark output. I was looking for an MS2 at that time. Quote Link to comment Share on other sites More sharing options...
Connor280ZX Posted March 7, 2014 Author Share Posted March 7, 2014 Our assembled MS1s are set up for fuel only unless special ordered otherwise. If i were to buy just the basic MS1 ECU, would i be able to enable spark later on with lets say a software upgrade, or does the MS1 ECU have to be specially equipped with certain hardware in order to control spark? Quote Link to comment Share on other sites More sharing options...
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