jacob80 Posted October 11, 2008 Share Posted October 11, 2008 Hey guys, just about to begin the whole wiring process, but I have a couple questions. We will be running MS1 with the v3.0 pcb board (I think that is what it is called) and controlling spark with the MSnS code and using our MSD 6T ignition. But I'm looking at these diagrams and I am not sure which one to use. On the first one, there is no GM HEI "thing" (not even sure what it does) and on the other one there is. What do we need to to to run an L28ET with the stock '83 turbo distributor on it with MSnS, thanks guys! Here are the two diagrams. Here is the diagram iwith the "HEI" by the distributor Quote Link to comment Share on other sites More sharing options...
jacob80 Posted October 11, 2008 Author Share Posted October 11, 2008 We will also be using the relay board...dont know if that is a factor or not... Quote Link to comment Share on other sites More sharing options...
jacob80 Posted October 11, 2008 Author Share Posted October 11, 2008 I assume that you use the HEI if you do not have an 83 turbo distributor, correct??? Quote Link to comment Share on other sites More sharing options...
naviathan Posted October 12, 2008 Share Posted October 12, 2008 With the 3.0 board you should run with the first diagram. Quote Link to comment Share on other sites More sharing options...
jacob80 Posted October 21, 2008 Author Share Posted October 21, 2008 With the 3.0 board you should run with the first diagram. ok, so wire it up exactly as shown? Nothing is missing from the diagram, correct? Also, I am running a relay board, this doesn't change anything, correct? Quote Link to comment Share on other sites More sharing options...
jacob80 Posted October 24, 2008 Author Share Posted October 24, 2008 anyone? Quote Link to comment Share on other sites More sharing options...
ihatejoefitz Posted October 24, 2008 Share Posted October 24, 2008 The relay board is missing from both of those diagrams. It will look something like this, but his diagram doesn't include MSD. Should get you started, though. Your db37 cable which you will either need to make or buy will run from the relay board to the ecu. Quote Link to comment Share on other sites More sharing options...
mikeatrpi Posted October 24, 2008 Share Posted October 24, 2008 Why are you using the FIDLE output to drive the MSD? Shouldn't you use the ignition out pin #36, with the v3 board? Quote Link to comment Share on other sites More sharing options...
jacob80 Posted October 25, 2008 Author Share Posted October 25, 2008 I do not have a fast idle valve installed, will we still need to wire it up? We also have an MSD 6T box, is it compadible? Quote Link to comment Share on other sites More sharing options...
jacob80 Posted October 25, 2008 Author Share Posted October 25, 2008 The relay board is missing from both of those diagrams. It will look something like this, but his diagram doesn't include MSD. Should get you started, though. Your db37 cable which you will either need to make or buy will run from the relay board to the ecu. This diagram shows that you only need one wire off the distributor, is this right? I am wanting to run Megasquirt n' Spark if that helps. Also, what the heck is "WB02"? Quote Link to comment Share on other sites More sharing options...
AK-Z Posted October 25, 2008 Share Posted October 25, 2008 WB02 = wide band 02 sensor Quote Link to comment Share on other sites More sharing options...
jacob80 Posted October 26, 2008 Author Share Posted October 26, 2008 WB02 = wide band 02 sensor Wow...I feel dumb Quote Link to comment Share on other sites More sharing options...
jacob80 Posted October 26, 2008 Author Share Posted October 26, 2008 I do not have a fast idle valve installed, will we still need to wire it up? We also have an MSD 6T box, is it compadible? Still need this question anwered, also, is there really only one one wire coming off the distributor to the relay board? What about the other two wires and the ground? The ground may include the two wires, but regardless, what goes where? Quote Link to comment Share on other sites More sharing options...
ihatejoefitz Posted October 26, 2008 Share Posted October 26, 2008 Still need this question anwered, also, is there really only one one wire coming off the distributor to the relay board? What about the other two wires and the ground? The ground may include the two wires, but regardless, what goes where? Quote Link to comment Share on other sites More sharing options...
jacob80 Posted October 27, 2008 Author Share Posted October 27, 2008 Thank you, but half of those letters I can't even read let alone know what they mean, and I thought I didn't need the GM HEI "thing" (I don't even know what it is used for) since I have the 83 turbo distributor? I am running megasquirt 1 pcb 3.0 with megasquirt 'n spark Quote Link to comment Share on other sites More sharing options...
Zmanco Posted October 27, 2008 Share Posted October 27, 2008 You can trigger MS1 directly from the turbo distributor so you don't need the GM HEI module. Since you already have a V3 board, if you're open to upgrading to MSII you could eliminate the MSD6 and have MS drive the coil directly. http://www.megamanual.com/ms2/vb921.htm The benefits of the MSD multiple spark feature is debatable, and they don't have the best reputation for reliability. MSII also supports MSII/Extra code including 16x16 tables for fuel and spark. There's nothing wrong with MS1 and MSnS/E, but the next generation is much improved. At this point all you would need is to buy the MSII processor which is about $90. And if you're thinking that you'll just start with I and later upgrade to II, you can do that, but keep in mind that you will have to retune from scratch. The fuel algorithms are different. Again, I'm not saying you need to start with MSII, just that if it's in your plans for later, it's best to do it now. Quote Link to comment Share on other sites More sharing options...
jacob80 Posted October 28, 2008 Author Share Posted October 28, 2008 Why would someone use the HEI if they could just use the distributor? And yes, we will be sticking with megasquirt 1 pcb 3.0 and MSnS. Also, what is the "extra" in MSnS-E< Quote Link to comment Share on other sites More sharing options...
mobythevan Posted October 28, 2008 Share Posted October 28, 2008 Why would someone use the HEI if they could just use the distributor? In your case you need three things to fire the spark plugs: a coil, a coil driver, and a distributor. The 83 turbo distributor does not contain a coil driver, therefore you need to supply one (either HEI module, IGBT transistor inside a v3.0 megasquirt, or some other ignition module like MSD). Becuase you are using v3.0 you will not need a GM HEI module. Wire everything like the last picture you put up. But remember that two more wires from the 83 distributor need to be connected to the car. That is what the schematic above was showing. The black wire from the distributor connects to ground, the black with white stripe from the distributor connects to 12 volts. The wrie colors at the distributor change once you get to the first wire harness plug. The change is listed in the installation sticky, so make sure you know which side of the harness connector you are on when wiring up the distributor. For the injectors, if you are running high impedance injectors then you can wire just like the last picture. If you are running low impedance injectors and pulse width modulation then you can also wire just like the picture. If you are using low impedance injectors but no pulse width modulation, then you need to wire resistors in for the injectors. There is a diagram in the sticky showing how to wire the resistors if you need them. Quote Link to comment Share on other sites More sharing options...
Zmanco Posted October 28, 2008 Share Posted October 28, 2008 There are several ways to assemble the V3 board based on what type of trigger you use. I suppose for some it might be easier to use the GM HEI vs. modifying their board. I would wire the distributor according to post 14 - that's the way I did it. The E for extra refers to a different version of the firmware running on the MS board that gives additional features. Before you go any further you should spend several hours on the MS sites reading up on this. MS is increadibly flexible with many options, but that means you have to make decisions which are best done when you're informed. It's beyond a thread like this to cover the pros/cons and tradeoffs of the various approaches you can take. Better if you read up and ask some questions - that will keep the threads to a reasonable length One last thing: shortly after I finished my install (and while it was still fresh in my head) I did a writeup that covers some of this. You might find it helpful: http://forums.hybridz.org/showthread.php?t=122277 Good luck! Quote Link to comment Share on other sites More sharing options...
jacob80 Posted October 29, 2008 Author Share Posted October 29, 2008 There are several ways to assemble the V3 board based on what type of trigger you use. I suppose for some it might be easier to use the GM HEI vs. modifying their board. I would wire the distributor according to post 14 - that's the way I did it. The E for extra refers to a different version of the firmware running on the MS board that gives additional features. Before you go any further you should spend several hours on the MS sites reading up on this. MS is increadibly flexible with many options, but that means you have to make decisions which are best done when you're informed. It's beyond a thread like this to cover the pros/cons and tradeoffs of the various approaches you can take. Better if you read up and ask some questions - that will keep the threads to a reasonable length One last thing: shortly after I finished my install (and while it was still fresh in my head) I did a writeup that covers some of this. You might find it helpful: http://forums.hybridz.org/showthread.php?t=122277 Good luck! I know we will be using the board to trigger, it is modified accordingly. That being said, where will the other wires off the distributor go since we're not using the GM HEI module? Quote Link to comment Share on other sites More sharing options...
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