datsundoug Posted February 16, 2017 Share Posted February 16, 2017 I'm in the process of reconstructing a rustbucket of a 280z and have plans for turbo. I plan on using a holset HY35, forged 8:1 pistons, (not sure what head im going to use yet) probably 450 injectors, fmic, etc. I have a seized turbo engine that I'm hoping has good distributor still. I also liked the idea and cleanliness of the ford coil on plugs. Tuning will be a slightly new adventure for me, so I'm not too familiar on what is best for this setup, or even what the differences are in the Megasquirt versions. I'm currently looking at the MS2 and MS3, but I'm not sure if the MS3 is really giving me anything extra or not. I've tried searching and haven't really found a great comparison or recommendation of which version to go with. From the information provided, would an MS2 do everything I need, or would i be better off with the MS3? Any advice is appreciated. Thanks. Quote Link to comment Share on other sites More sharing options...
skirkland1980 Posted February 16, 2017 Share Posted February 16, 2017 Ms2 is what I've been using since 2011. You can do everything but sequential with it. I'll soon upgrade to ms3x because I'm adding a bunch of outputs. I mainly want it dir the drag staging feature. You can always upgrade your ms2 to ms3 or ms3x later by replacing the processor. Quote Link to comment Share on other sites More sharing options...
NewZed Posted February 16, 2017 Share Posted February 16, 2017 This thread covers a lot - http://forums.hybridz.org/topic/50208-the-ultimate-l28et-guidewhat-you-need-for-350whp/ Worrying about whether the distributor in your seized engine is still good and the clean look of COP shows a little bit of unfocus. For the money you're spending on other parts you could consider one of the damper mounted sensors. Probably more dependable, maybe cheaper in the long run. And a clean look. Looks like you're still early in planning. DIYA has tried to make sense of the mess of options and MS variations. Even they get sucked in to a vortex of possibilities but still worth reading their articles - https://www.diyautotune.com/support/tech/ Quote Link to comment Share on other sites More sharing options...
datsundoug Posted February 16, 2017 Author Share Posted February 16, 2017 Ok thanks. I was unaware of being able to upgrade that easily. Should I be worried about the lack of sequential? I'm not too familiar with the specifics of it but I have the feeling it wouldn't be necessary since you're running without it. Anything else you would recommend when I order it? Are you using the built in MAP sensor on the MS2 or the GM sensor? I haven't found a definite answer as to if the Megasquirt will run the Ford COP's or if I would need additional components to do so. I think im going to attempt the diy kit and spend some free time soldering it. Quote Link to comment Share on other sites More sharing options...
datsundoug Posted February 16, 2017 Author Share Posted February 16, 2017 Lack of focus is my middle name. The car is still on the rotisserie and I'm worried about engine management right now for some reason. Quote Link to comment Share on other sites More sharing options...
Xander Posted February 16, 2017 Share Posted February 16, 2017 I run a 36-1 trigger wheel using a hall switch, I run Waste Spark DIS ignition, I have an extra input for fuel pressure logging and I run 440cc injectors (RX7). All on a MS1 with a V2.2 board. Do you need MS2/3? Quote Link to comment Share on other sites More sharing options...
jacky4566 Posted February 16, 2017 Share Posted February 16, 2017 I went a little crazy since I wanted ALL the features. Using a HFM5 MAF makes tuning really easy FYI. This is my build: http://www.msextra.com/forums/viewtopic.php?f=104&t=63609 If i was to go back i would really consider the microsquirt. It's basically a mini MS2 and would be perfect for us weekend drivers who arnt racing and dont need a million I/O. Quote Link to comment Share on other sites More sharing options...
datsundoug Posted February 17, 2017 Author Share Posted February 17, 2017 Ok, sounds like the MS2 is plenty for what I would want to do. I am intrigued by the microsquirt but I'm not sure what I'd be giving up over the MS2. Sounds like it would do everything I need to do in a smaller/cheaper box? Quote Link to comment Share on other sites More sharing options...
HuD 91gt Posted February 17, 2017 Share Posted February 17, 2017 I'm running MS2, and the ability to have more input/outputs for additional sensors would be nice. Not required, but nice. If you want to add some sort of idle control, everything gets eaten up pretty quickly. Quote Link to comment Share on other sites More sharing options...
tatertoph Posted April 22, 2017 Share Posted April 22, 2017 I went a little crazy since I wanted ALL the features. Using a HFM5 MAF makes tuning really easy FYI. This is my build: http://www.msextra.com/forums/viewtopic.php?f=104&t=63609 If i was to go back i would really consider the microsquirt. It's basically a mini MS2 and would be perfect for us weekend drivers who arnt racing and dont need a million I/O. How do the 550cc injectors work in a stock na l28? Does the car idle ok or was it difficult to tune with those big injectors? Also were they Low/High impedence? Just wondering I am doing a similar build to you. Quote Link to comment Share on other sites More sharing options...
jacky4566 Posted April 23, 2017 Share Posted April 23, 2017 tatertoph they are high impedance modern EV14 injectors. The nice thing is they have a very low dead time so no problems with idle. You could probably go twice as big and still idle just fine. I'm not sure what you mean by "work in a stock na l28?". The stock ECU is ONLY built to work in a stock environment (sensors, idlers, pumps, etc). Soon as you start to tinker with it your going to have problems for sure. Unless you mean "work" as in perform? With a megasquirt they are great! I purposefully picked over sized modern injectors so i could run N/a for now and there would be no fulling problems when i upgrade to turbo. Currently i max the injectors out around 26% so plenty of power to go. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.