DETurbine wrote:Hell finally froze over. After years of putting it together I finally got it cranked over with the new Mega Squirt setup. I know there were a lot of people waiting to see if we could get it to work with the stock CAS, stock Ignitors, stock sensors, stock IAC, VVT, etc....basically plug and play except the GM intake air temp and no MAF. First time MS1 has ever been a plug and play setup for our motors. In the past people have done the Ford EDIS-6 or had a custom CAS wheel made.

http://www.youtube.com/watch?v=DroFlzaviSw

Once my friend gets it properly tuned and verify that everything works properly. He is thinking about getting some professional PC Boards made if anybody is interested in board kit or ready to run ECU. Another option rather then the more expensive stand alones or the PFC.

HxC_Nismo wrote:

congrats on getting the megasquirt to work on the RB, cause thats not quite that easy to do. whats up with vid at 1:04 lmao, reminds me of a scene in the movie fight club lmao, you can get in trouble with youtube if they catch it.

Modified by HxC_Nismo at 9:45 PM 4/3/2010

meet07 wrote:tell us more about it??!?!?!!??

beav wrote:I am Deturbines friend, His setup is using the latest MS1 Extra firmware, 29y I think. Its a true six channel coil on plug decoded by the add on board which directly drives the coils. It emulates a distributor to the megasquirt so only one input and one output is used. If you tried to do true six channel COP natively with the megasquirt and a different crank wheel or different cam wheel then it would use six of the megasquirts outputs and you would be limited. With deturbines, we have plenty of outputs left for VCT, idle air control, three stage shift light and a couple more I wired up but currently dont have any specific use for, fan control is a possibility but I was gonna try the stock fan switch for now. The injectors are batch fire, the new MS3 supports sequential injection and individual cylinder trim but the benefits are usually regarded as negligable if you even bother to attempt to tune for it. The MS3 has tons of outputs and features but is still pretty new and already sold out at the moment. MS2 or MS3 or actually just about any ecu that supports a distributor could be used with this decoder board. MS2 or MS3 would require a slightly taller case but should be do-able.

If somebody wanted a fully assembled MS1 setup just like this that is ready to wire in and run I am pretty sure it could be done for $500 including the GM IAT and a small pigtail harness to wire into the ecus harness. I wouldnt really be makin any real profit, just sharing some of the work that went into making DETurbines work. MS2 or mS3 would be a bit more due the upgraded cpus and larger cases. If I had a junk ecu to salvage the clip from a true plug and play jumper harness would be possible. I could possibly rewire harnesses too. Just the add on boards price alone would come down to how cheap I can get them made, small quantities are not too cheap which is why I figured I might as well get a few made and see if anybody wanted one instead of getting one nice one made just for DETurbine.

Modified by beav at 12:26 PM 4/5/2010

Modified by beav at 12:28 PM 4/5/2010

beav wrote:I am Deturbines friend, His setup is using the latest MS1 Extra firmware, 29y I think. Its a true six channel coil on plug decoded by the add on board which directly drives the coils. It emulates a distributor to the megasquirt so only one input and one output is used. If you tried to do true six channel COP natively with the megasquirt and a different crank wheel or different cam wheel then it would use six of the megasquirts outputs and you would be limited. With deturbines, we have plenty of outputs left for VCT, idle air control, three stage shift light and a couple more I wired up but currently dont have any specific use for, fan control is a possibility but I was gonna try the stock fan switch for now. The injectors are batch fire, the new MS3 supports sequential injection and individual cylinder trim but the benefits are usually regarded as negligable if you even bother to attempt to tune for it. The MS3 has tons of outputs and features but is still pretty new and already sold out at the moment. MS2 or MS3 or actually just about any ecu that supports a distributor could be used with this decoder board. MS2 or MS3 would require a slightly taller case but should be do-able.

If somebody wanted a fully assembled MS1 setup just like this that is ready to wire in and run I am pretty sure it could be done for $500 including the GM IAT and a small pigtail harness to wire into the ecus harness. I wouldnt really be makin any real profit, just sharing some of the work that went into making DETurbines work. MS2 or mS3 would be a bit more due the upgraded cpus and larger cases. If I had a junk ecu to salvage the clip from a true plug and play jumper harness would be possible. I could possibly rewire harnesses too. Just the add on boards price alone would come down to how cheap I can get them made, small quantities are not too cheap which is why I figured I might as well get a few made and see if anybody wanted one instead of getting one nice one made just for DETurbine.

Modified by beav at 12:26 PM 4/5/2010

Modified by beav at 12:28 PM 4/5/2010

WhatsADSM wrote:
So wait... I was just thinking, something isn't quite right about the sequencer/distributor thing.

Since you effectively TDMing all of the coil outputs on a single MS output you will definitely run into a bottleneck on that output.

Consider this:Say you want to spin this up to 8000 (normal for an RB). 8000 RPM is 133.33 rev/s. Which has a period of 7.5ms

Now because you are attempting to run a 6 cylinder that means that there are 3 separate spark events per 1 mechanical revolution. And assuming you aren't trimming the dwell between each cylinder differently (do any standalones support that?) that means that you only have a maximum of: 7.5ms/3 = 2.5ms of dwell per cylinder.

And 2.5ms is a MAXIMUM, essentially as you approach this number the ignition would just start falling apart since the edges would go away completely at 2.5ms. So... lets just say to be safe you limit it to 2.0ms.

You really couldn't have a system that runs more than about 2ms of dwell?

beav wrote:
Correct, but everyone I have talked and the Motec website said these coilpacks only need 1.5ms of dwell so its still a non issue. Otherwise I would have added dwell control onto this boards microcontroller as well. Last I knew most of the megasquirts native COP or wasted spark setups dont actually support overlapping dwell either which is dissapointing, but distributor setups have worked fine that way for a hundred years.

Edit: and acutally I just remembered, the stock ecu is setup with the output just like mine because that is what I modeled mine after. It uses logic counters and logic gates to lock out all but one cylider at a time and the cpu only drives one coil at a time that is detemined by the discrete logic chips as it cannot come close to decoding that wheel by itself either. So even if it needed I am pretty sure the stock ECU cannot overlap dwell either.

Modified by beav at 1:40 PM 4/5/2010

TheRealNap0le0n wrote:i like the idea of a cheap alternative for a stand alone but my last experience with a MS was a MSII running MS extra code and I know for a fact that the megasquirt hates my computer... it was always locking up during tuning which is to say the least a patience tester

beav wrote: Last I knew most of the megasquirts native COP or wasted spark setups dont actually support overlapping dwell either which is dissapointing, but distributor setups have worked fine that way for a hundred years.