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Megasquirt MS-II/PCB3 rotary setups (EDIS ?)

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Old Aug 28, 2005 | 11:46 AM
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Thumbs up MS-II/PCB3 rotary setups (EDIS ?)

I'm just about to buy this setup and I'd like some input , tips , tricks from those who have worked with this setup , even just the PCB3.

As I've managed to 'eek out' from the MS fourms this is what I'm getting

MS-II /PCB3
LOOM
relayboard
pcb-relayboard loom
ait/wt sensors ( GM ) with pigtails
I'm building a custom manifold using a 85mm TB and a ford TPS

My one indecision is to use an Accell brand Ford EDIS or the oem packs in conjuction with the CAS. And in that, trying to figure out what is neded to properly run the CAS with the new MS-II

any input appreciated on this..
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Old Aug 28, 2005 | 12:19 PM
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ok never mind about the EDIS, just realized it's a wasted spark only system and not workable as far as I can tell.

so it's back to the CAS and stock coils.. althought I'd dealy love to get rid of them in favor of a more advanced setup ( coil on plug ..)
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Old Aug 28, 2005 | 12:52 PM
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Have you read this thread? =-> http://msefi.com/viewtopic.php?t=7544
If you would like to use the CAS and stock coils, etc., MS2 does not currently support that. The Extra code for the MS1 processor does as of a few weeks ago. You can get leading only w/ the MS2 processor (w/ a hacked CAS wheel). Were I you, I would spend the extra $12 and get an MS1 processor so you have all options available to you. MS2 processor has great potential, more memory, CAN capability, etc., but it'll be awhile until most of the Extra enhancements are ported to that chip/daughterboard. The MS1 processor works fine w/ the v3 PCB, I'm sure you knew that already, just wanna make sure. Do you have any of that manifold fabbed up yet? If so, pics would be great...

-Mike
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Old Aug 28, 2005 | 10:39 PM
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exhaust mani is fabbed up back to the 3" flex pipe at mid tranny, CNC 1/2" intake flange is cut but I'm looking for a source of weldable 1.75 or 2" 6061-T6 mandrel bends .. so far nothing locally, I use wedge cuts for IC piping but I don't want to use that for intake manifold runners..

WHy would it be $12+ to go to the MS I ? I would have thought it was a step down in pricing


2 more things, what is this 'CAN' system.. I realie it's some sort of output interface to other components but I don't find reference to it anywhere .. also mentioned in another post something about a 'LM1815' board as part of an advanced setup for rotary use..

I'll have many more dumb *** questions ( that I''m sure should be put into a FAQ for future dumbasses to paruse ) , later on, I'm a fabricator and BSc. grad.. but no where hear an electronics book have I come in my years.. which should probably change since I plan to use the MS system on aircraft in the near future..
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Old Aug 28, 2005 | 11:09 PM
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Originally Posted by doridori-rx7
WHy would it be $12+ to go to the MS I ? I would have thought it was a step down in pricing
I think he meant buy both the ms2 and ms1 chip, and just use the ms1 until the code is ported to the ms2.

2 more things, what is this 'CAN' system.. I realie it's some sort of output interface to other components but I don't find reference to it anywhere .. also mentioned in another post something about a 'LM1815' board as part of an advanced setup for rotary use..
CAN = Controller Area Network. There are plans for the MS2 to communicate over this network to a separate "router board" with several outputs for things like sequential injection, Coil-on-Plug, etc...

for a v3 board, this lm1815 board isn't necessary. If you want to use a standard 2nd gen CAS, you'll still need a single lm1815 circuit built in the proto area... This circuit basically takes the signal from the "G" sensor in the CAS, and turns it into a square wave that the MS can understand. The dual lm1815 board does the same thing for both Ne and G, but isn't required on the v3 board because the v3 board already has a single built-in vr signal conditioner.

If you don't mind cutting a couple of teeth off the NE wheel in the CAS, you can get away with not using the lm1815 (it's a chip that does vr sensor conditioning) in the proto area, and instead, all you'd need is the built-in vr signal conditioner.

I'll have many more dumb *** questions ( that I''m sure should be put into a FAQ for future dumbasses to paruse ) , later on, I'm a fabricator and BSc. grad.. but no where hear an electronics book have I come in my years.. which should probably change since I plan to use the MS system on aircraft in the near future..
I might put together an FAQ at some point as soon as more questions get asked
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Old Aug 29, 2005 | 06:58 AM
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ok, this is good, questions that i've had for some time are getting answered.. finally, a big arigato goziamasu.

I know with the E6(x) series you need to do some odd wiring and ign. settings for the CAS to work with it.. is thier a) a rev number of the SW thats been developed that's 'the one' to use? if so where can we/I DL it. I think I saw a thread in the general section that may have contained the base settings for the CAS, but it was unclear if it was the final settings or just a test setup.. and i think finally, at least in the ign. catagory, could someone toss up a wiring diagram for the CAS ( is thier specific setups for both the 2.2 board and the 3.0 board ?)

thanks guys, this is so much better then trying to scour and patch together info from the MS boards.. although I like the boards.. I get too easily sidetracked by other topic threads.. spends hrs not do what I mean to do.. and reading about someones MS setup in a citroen powered Ford Anglia or whatever..
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Old Aug 29, 2005 | 08:52 AM
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The earliest software that had proper rotary support was 025k. It can be downloaded from http://megasquirt.sourceforge.net/extra/

Just click on "download" at the top of the screen.

Externally in the car, there is no weird wiring stuff that needs done for the CAS or coils. Just run the output of the Ne wheel to one of the lm1815's (on a 2.2 board with dual lm1815) or to the vr sensor conditioner that's built into the v3 board. Then run the output of the "G" wheel to the other lm1815 (or the one in the proto area for v3).

As for what to do to wire the dual lm1815 or the v3 version of this setup internally I don't have a diagram for that yet... and I'm not sure anyone does. I don't know if I'll have time to create one, but I posted some instructions for wiring in another thread in this section.

The settings for the rotary are also in that how-to. I don't remember which thread I posted it in, so I'll just post it again:

http://www.speakeasy.org/~culverk/wh...oder-howto.txt
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Old Aug 29, 2005 | 11:30 AM
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From: Spacecenter Houston
Originally Posted by muythaibxr
As for what to do to wire the dual lm1815 or the v3 version of this setup internally I don't have a diagram for that yet... and I'm not sure anyone does. I don't know if I'll have time to create one, but I posted some instructions for wiring in another thread in this section.
Ken, I'll try to put together a drawing tonight--just keep coaching me and I'll do the gruntwork. Then I'll pm you with it for review. Once the drawing is good you can post it up. I'm planning on doing the drawing for both 2.2 and 3.0 with both S4 and S5 connections. I may need some help on the S5 connections (pin code / wire colors) but I think you already have that covered.

Scott
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Old Aug 31, 2005 | 01:11 PM
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^ dude you rock if you can do that... seriously freakin' awesome if a pictorial diagram was made..
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Old Aug 31, 2005 | 02:25 PM
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Originally Posted by doridori-rx7
^ dude you rock if you can do that... seriously freakin' awesome if a pictorial diagram was made..
I don't know what rex4life is up to, but I'm going to make a diagram for S4 and S5 rx7's telling what pin is what and where it needs to go on a stock harness... but I won't be doing it until Monday or Tuesday.

I'm not sure how much help that'll be to everyone else either.
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