Arktasian's 95 K75 on Microsquirt Mod Table

[Arktasian]

I performed a flow test on the 250cc (24lb) EV1 injectors I'm using. I chose this size to reflect fueling increases that will develop with forced induction. The little test stand in photos posted above actually worked well, and utilizing an Excel file a "Dead Time" spec of 0.5ms results. This spec is something that is important to enter into the tuning program (Tuner Studio), and interestingly isn't provided by most suppliers (& when it is provided or plagiarized from another squirter tends to be wrong).
Wiring progresses systematically and with good integration with original circuits and space available. (I couldn't attach the Xcel file here, if anyone is doing a similar project and is interested in the file, notify me and I'll email it too you)

[frankenduck]

1) I'd just get rid of the BMU.

2) Battery in tail cowl: Putting weight high and back on a motorcycle degrades handling.

[Arktasian]

1) Ours is a modest home, and has never had a BMU (building maintenance unit)
2) Its a modest AGM, but with other items removed and that I also have a modest ass, I don't believe this is going to be an issue. But thanks for mentioning.

[frankenduck]

BMU = Bulb Monitor Unit

How to get rid of it:

Connect Gray/White (from Fuse 2) to Gray/Black(tail light power)

Connect Gray/Green(rear brake switch) and Gray/Red(front brake switch) to Gray/Yellow(brake light)

Then you can run LED brake and tail lights without the BMU cluster light illuminating.

[Arktasian]

Well that anacronym clarification deserves thanks, and a BLT should we cross paths. Also that's a useful workaround towards LED upgrades, make it 2xBLT then.

[Arktasian]

Wiring is complete.

MS Activity Center.JPG (33.48 kB . 576x576 - viewed 63 times) The "Trapezoid" item is a cover over a smallish housing that contains the V3 Microsquirt, relays, and a fuse block (will post a photo with cover off later).

Folded Open for harnesses and runs to connect.JPG (73.02 kB . 768x576 - viewed 65 times) Here, its folded down to allow procedures and wiring. All harnesses fold in behind once its raised back in place. All soldered connections, and "D" plugs where it counts. Also, lots of shielding on various circuits - no noise allowed 

Jim Stim.JPG (49.91 kB . 432x576 - viewed 57 times) This is the "JimStim" device that can be utilized at great advantage to simulate all manner of engine sensors, tone wheel/ sensor combinations, etc. Its especially useful when troubleshooting something that isn't quite working properly. I may leapfrog right to the point of spinning up engine to witness "sync" - in the next day or so.

Composite Logger.JPG (75.09 kB . 768x576 - viewed 61 times) This is a composite tooth log that is available on diagnostics (via Tuner Studio) to witness how the pickups are working & this was from a previous session using the drill press to prove out the 24 - 1 crank/ cam arrangement.

Generate VE Table - Fueling.JPG (70.21 kB . 768x444 - viewed 54 times) VE table generator is a fun one, some of the values are randomly chosen at this point, so we'll see how she runs and some editing there may be required.

[Arktasian]

All wiring complete, decided to crank her over with plugs out to prove operation of the crank and cam wheels and their sensors. Getting that right is pretty much what anybody squirting with these ecu's needs to get right. Our friend WMAX351 above in the special section was on that quest, after having initially gained "Fuel Only" control via simpler triggering - but then dropped the project.
In any case, she's gaining sync nicely, with the plugs firing in sequential order as they sit outside the valve cover & grounded on a little fixture.
Below is a "snip" of the composite diagnostics running and proving sync.
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Diagnostic Composite Log K75.jpg (47.9 kB . 619x576 - viewed 44 times)

[Arktasian]

All done, ready to start up and tune.
This will unfortunately have to wait till later this summer, as our schedule is chalk full of family stuff. I promise to return.
Decided to rebadge the valve cover insert:

Kompressor.JPG (65.54 kB . 768x576 - viewed 30 times)