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> MicroSquit Conversion, Giving this a try
Mblizzard
post Jun 15 2017, 07:52 AM
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QUOTE(McMark @ Jun 14 2017, 09:18 AM) *

I usually start with an Offset Angle of 290°. From your screen grab it looks like the MS2E software call that Tooth #1 Angle.

If nothing happens when you first start with the crank trigger, try swapping the Ignition Input Capture from Falling Edge to Rising Edge. With the MicroSquirt firmware and running ignition, the engine won't start with that setting backwards. So it's pretty easy to tell. You can also figure it out definitively by loading the Tooth Analyzer firmware and looking at the waveform it spits out.



I guess the question I have is relative to TDC what angle is the missing tooth?

The information in the manual is not very clear.


From the manual:
Trigger Angle/Offset (deg)
In 'Toothed Wheel' this should always be set to zero – use tooth #1 angle instead.

Maybe it is that I read things too literal but if it should always be set to 0 and you are to use the #1 angle does that mean tooth #1 has to be at TDC? Or is the missing tooth TDC?

Tooth #1 Angle (deg BTDC)
Generally (with a missing tooth crank wheel) tooth #1 is the first tooth to pass the sensor after the missing tooth gap.

This would seem to follow McMark (290) and suggests that missing tooth should be TDC.


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McMark
post Jun 15 2017, 08:24 AM
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The missing tooth can be anywhere.
The sensor location can be anywhere.
The setting is there to tell the ECU how many degrees between TDC and when it senses the missing tooth. In the case of my trigger wheel, the missing tooth passes the sensor 290(ish) degrees away from TDC.


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Mblizzard
post Jun 15 2017, 08:45 AM
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QUOTE(McMark @ Jun 15 2017, 06:24 AM) *

The missing tooth can be anywhere.
The sensor location can be anywhere.
The setting is there to tell the ECU how many degrees between TDC and when it senses the missing tooth. In the case of my trigger wheel, the missing tooth passes the sensor 290(ish) degrees away from TDC.


Well that picture certainly clears up a lot of useless gibberish in the manuals! (IMG:style_emoticons/default/pray.gif)

By the time we are done there will be a lot of useful information in this thread.
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LowBridge
post Jun 15 2017, 12:36 PM
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QUOTE(Mblizzard @ Jun 15 2017, 10:45 AM) *

QUOTE(McMark @ Jun 15 2017, 06:24 AM) *

The missing tooth can be anywhere.
The sensor location can be anywhere.
The setting is there to tell the ECU how many degrees between TDC and when it senses the missing tooth. In the case of my trigger wheel, the missing tooth passes the sensor 290(ish) degrees away from TDC.


Well that picture certainly clears up a lot of useless gibberish in the manuals! (IMG:style_emoticons/default/pray.gif)

By the time we are done there will be a lot of useful information in this thread.

(IMG:style_emoticons/default/agree.gif) I have been following this waiting to see how it ends up because I have been thinking about this very conversion to my 2.0 w/carbs
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Mblizzard
post Jun 15 2017, 05:19 PM
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As the reality of modern business becomes more appearemt to all of us in the form of lower expectations, it is great to know we have people like McMark and Orginal Customs who make us understand that there are a few that still share our values and passion.

Just got this in and it is TOP SHELF and is on par with every item I have gotten from Orginal Customs from my complete engine to the smallest part. Well done sir!
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Mblizzard
post Jul 9 2017, 01:06 PM
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Progress made today finally. Engine dropped. Taken apart and trigger wheel,added. AC compressor out. Reassembled and ready to slip back in after some wiring and setting the valves.

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Montreal914
post Jul 9 2017, 01:32 PM
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Nice (IMG:style_emoticons/default/smilie_pokal.gif)
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Mblizzard
post Jul 14 2017, 10:35 AM
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QUOTE(timothy_nd28 @ Jun 6 2017, 04:10 PM) *

Doug (dlee6204) makes a neat bracket that mounts the sanden compressor on top. I bought his pulley adapter for this conversion but have decided to go a different route, it's all yours if you want it.


I would be interested in that for sure.
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Mblizzard
post Jul 16 2017, 03:54 PM
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Well! Engine back in. Most of the wiring done. All of the things I was going to do with the next engine drop (new starter, change CHT lead, change clutch pull from crap plastic to metal, add SS oil cooler lines, space out oil cooler, and others) done.

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Now just have to button up the lose ends and then see if it works!


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McMark
post Aug 14 2017, 02:34 PM
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Reviving this thread since I'm just going through configuring one of my MicroSquirt injection setups, but running the MS2Extra firmware.

It appears that the MicroSquirt firmware and the MS2Extra firmware use this 'Trigger Offset' and 'Tooth #1 Angle' differently. I had this car running on the MicroSquirt firmware with a Trigger Offset of 298.2°. Now that I've installed the MS2Extra firmware, it didn't want to start with that as the Tooth #1 Angle setting. I had to go the other direction and put in a setting of 75 to start (which started to run, but barely). Doing the math (360-298.1) gives me 61.8. I'll be tuning the Tooth #1 Angle setting tomorrow with a timing light and will update this post with my final Angle setting.

But this is just another example of how the settings between different firmwares can be drastic, and so if you're researching MegaSquirt settings it's vitally important that you know which firmware corresponds to the information your looking at. A quick web search can send you far down a wrong path if you don't pay attention. (IMG:style_emoticons/default/wink.gif)
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Mblizzard
post Aug 22 2017, 10:55 AM
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OK so lots of work and no more success!

Got McMarks tooth wheel installed and it seems to be putting out a fine signal.

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But the injectors are not firing.

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Not sure if I am missing something on the settings that tells the injectors when to fire but the data shows all "zeros" so I don't think it is getting a triggering event.

I have injection set to untimed injection which = batch fire but it never fires. Is there something else I have to change in the settings to trigger the injectors?

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Ordered new Micro Squirt to see if the resistor problem is the cause.

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crash914
post Aug 22 2017, 11:50 AM
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I don't believe that the type 4 is an "odd" fire engine. that is for 5 cylinder and Harleys....etc. I think?
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Mblizzard
post Aug 22 2017, 12:25 PM
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QUOTE(crash914 @ Aug 22 2017, 09:50 AM) *

I don't believe that the type 4 is an "odd" fire engine. that is for 5 cylinder and Harleys....etc. I think?


I tried it both ways but still no injector trigger. I have not switched over to using the Micro squirt to control timing yet so I have no idea if this matters to the firing of the injectors.
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McMark
post Aug 22 2017, 12:38 PM
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Odd fire relates to engines who's cyilnders don't fire 180-degrees off. Which means most every engine out there is NOT Odd fire.

Does the RPM gauge rise when cranking? If not switch the Ignition Options -> Ignition Input Capture (from Rising Edge to Falling Edge, or visa versa).
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Mblizzard
post Aug 22 2017, 12:54 PM
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QUOTE(McMark @ Aug 22 2017, 10:38 AM) *

Odd fire relates to engines who's cyilnders don't fire 180-degrees off. Which means most every engine out there is NOT Odd fire.

Does the RPM gauge rise when cranking? If not switch the Ignition Options -> Ignition Input Capture (from Rising Edge to Falling Edge, or visa versa).



Humm... Just a thought. I was just reading the RMP gauge normally off the coil so I did not have the Tacho output enabled.

Looking at the wire diagram it seems like the VR circuit would like to have that signal. That may explain all of the zeros for the trigger.

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Mblizzard
post Aug 22 2017, 02:34 PM
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QUOTE(McMark @ Aug 22 2017, 10:38 AM) *

Odd fire relates to engines who's cyilnders don't fire 180-degrees off. Which means most every engine out there is NOT Odd fire.

Does the RPM gauge rise when cranking? If not switch the Ignition Options -> Ignition Input Capture (from Rising Edge to Falling Edge, or visa versa).


Just did a bit more reading and looks like your suggestion may be right. Manual says this is a pattern of a VR wired incorrectly.
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McMark
post Aug 22 2017, 02:39 PM
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Tachout shouldn't have anything to do with anything but your gauge.
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Mblizzard
post Aug 23 2017, 04:09 PM
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(IMG:style_emoticons/default/headbang.gif) (IMG:style_emoticons/default/headbang.gif) (IMG:style_emoticons/default/headbang.gif)

Beyond frustrated! New controller allowed the engine to start but can't get it to even idle or remotely run.

Anyone have a tune that will allow the damn thing to run?

Need to drink gin and tonic!
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76-914
post Aug 23 2017, 04:51 PM
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I'm surprised your not "knee walking" drunk already. (IMG:style_emoticons/default/icon8.gif)
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Mblizzard
post Aug 24 2017, 04:07 PM
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Progress was made. I have a good solid idle but dies on trying to accelerate!

Time to drink more. Any suggestions on what setting i may have wrong?
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