Thanks for the encouragement guys. Initial project page now in .sig. There's another page linked there for older firmwares. Will eventually update it to include other resources along with release...

Instructions on building / flashing firmware are relatively well-documented in README.txt



I'm feeling your peer pressure. I just sat down and spent 2+ hours taking pictures and writing...

Latest build, 0.9.45 now in .sig. Preliminary testing is good, plan to drive ~60 miles round trip to golf in a bit.

Thanks for the tables.

After having spent the last several hours re-acquainting myself with the project (I literally haven't given the code side of it 10 minutes worth of thought in more than 2...

The latest "official" release is 0.9.43 which is linked in my .sig. Today I added the gerber outputs to this zip archive at the request of another user wanting to produce their own PCBs.

Looking...

Just wanted to drop in with an update - I did manage to log a bad start the day after my last message. I've yet to completely figure out what might have happened. Seems unrelated to any recent...

You wouldn't want to watch 18 hours of me slogging through this in the July heat. I'm hoping this is a simple case of one molded piston that's disintegrated, but that doesn't make the project any...

Dozens

Un-assembled kits $25 - extensive soldering required but all through-hole components
Assembled + tested board $75 - soldering required to connect wiring, 1-week lead time, small orders...

Not in it's current form. The controller firmware is completely dependent on the opti signaling.

It's possible that it could be made to work once a time-based mode is added, but I've had little...

While I'd love to hear your feedback, if your transmission is struggling to deal with the torque you might want to lay off the WOT passes.



Sounds good.

I think the auto-tune idea may be...

Just wanted to update with more info. Fully tested to 6800 rev limiter, no abhorrent behavior.

Also, I tested the multiplier offset fairly extensively. Based on your observations (kur4o) I decided...

0.9.43 tested, sig updated with link.

Disclaimer - I was not able to test above 6600 rpm in-car because I didn't want to come to a complete stop and shift into 1st. Next time I'll wait until 80mph...

Found and fixed improperly handled array bounds logic in all three table lookup routines that could have impacted any min/max transition adversely. Sweep test framework has been added as a...

This should be worth a laugh or two. Didn't have a chance to analyze the logs yesterday afternoon, dug in just now and found the issue straight away.

...

I'm thinking that instead of some table interpolation maybe a simple damping / smoothing function on the millseconds to degrees conversion would be better.



My morning test drive (haven't...

kur4o your PMs are full again.

I think I might have mis-interpreted your most recent one.



After re-reading this I think I better understand what you're saying here. While I would still like...

The sunshell flaring out or fracturing is pretty much (completely) separate from the # 3 clutch apply check ball digging through the separator plate. Hard 2-1 downshifts are what I'm most concerned...

Another thing occurred to me just now. Having recently immersed myself in the 700r4 / 4l60 / 4l60e for the purpose of building / rebuilding the transmission in my wife's daily driver, I learned one...

Glad things feel better - this makes me think these coils (and possibly all the "D" models) are getting 10-20% more dwell time than they need. Or in other words the dwell limiting which is what my...

Here's the data from the 514a coil I tested

Temp / Volts 8 9 10 11 12 13 14 15 16 17
-20 / -4 n/a n/a n/a n/a n/a n/a n/a n/a ...

Just to more completely explain my position on this, temperature and voltage are variables that primarily (in the case of voltage, strictly) impact the coil's electro-mechancial performance. Another...

I will not be rewriting it to change the indexes used for the dwell and compensation tables lookups. It makes absolutely zero sense to do so because in order to measure each unique coil's thermal and...

Look in the zip for a spreadsheet: Proposed Dwell vs Coil Temp.xlsx This will let you convert milliseconds to timer2 ticks.

The simplest explanation of how it works - it's been a while since I've...

Looks like ECT is more or less in agreement with what the ecu thinks it is. There might be a little noise there but will have to compare to some of my old logs to know if it's an anomaly we need to...

The voltage index is the x axis of the dwell table. Open d514a_dwell.h.

However, you should be safe to use C and V together. Just don't get crazy with the capital letter PIDs because they almost...