Anyone worked with the 16196397 yet?

[RobertISaar]

that's certainly different.

I've patched in 2/3 BAR support for a different mask/PCM, but I just haven't done it yet for the P66 V6 PCM. I think you're only the 3rd or 4th person to ask about it, so it hasn't been a huge priority, but maybe after this weekend, I can see if I can set aside some time to get on it.

[Xnke]

it's been so long since I dabbled in assembly and hex for the 'HC11 I am not sure I could get it back now. Thanks for taking a look at it-I will be ready to fit the engine into the bay in about a month. If boosted support is available by then then I'll just make the headers into a set of turbo headers, it's way easier to do that now than later.

[Xnke]

Definitely gonna go with the M90 blower now. I got to borrow a Frontier M62 and it's just too long to get it on the plenum cover; so I'll be taking the bandsaw to an M90 case soon.

[Xnke]

Any news on 2bar support for this PCM? I have gotten the super chopped down and ready to fit to the intake.

[RobertISaar]

messing around with it now. the oddball 16-bit VE table actually has an advantage here to where I can basically just tack on another table into the positive manifold pressure range without needing to write an airflow multiplier table.

[RobertISaar]

good progress done sporadically throughout the day. noticed that I'm going to end up changing the main spark table as well.... luckily, it is already 17x17 and the MAP scaling is already sufficient(20-100 in 5kPa increments), but spark is 400-4800, 200 RPM increments from 400-2400 and 400 RPM increments above that. I'm going to add in a patch that changes the RPM scaling from 0-6400 in the same space, i'll just have the tables listed next to each other in the XDF with some notes in both to indicate which one should be used. currently making a spreadsheet to allow easily changing from the existing table to the new table scaling(just copy/paste instead of interpolating and extrapolating from existing values).

as-is, I have the code setup for the boost VE and spark tables ready to go from 100-300kPa in 12.5kPa increments, though I'm considering allowing it to go 100-200 in 6.25kPa increments for anyone who wants to use either a 2 or 3 BAR sensor, but doesn't plan on exceeding 200kPa.

also considering changing the existing Main VE table as well.... RPM scaling is fine here(0-6400 in 400RPM incs), but MAP is 15-50kPa in 5kPa increments, then 50-100 in 10kPa increments.... table would have to be relocated though, i'll need to see what kind of space I have to work with after the other stuff is finished.

[Xnke]

That's awesome. Honestly, 10kpA increments from 50-100 is fine. I use similar scales a lot in the Megasquirt world-unless you're running a cam that really doesn't make much vacuum then all your fine tuning is usually under 65kpA or so. Above that, 10 or even 15kpa per increment is perfectly usable, as long as the tables are being interpolated.

I sat down and took a look at re-learning what I'd need to know the other day-would have been january before I felt ready to tackle something like this!

The spark table sounds...odd. But, there really isn't much need to add or remove timing advance past 3000ish RPM in most engines, so I can see why it was done that way.

Whatever you come up with-I am 100% certain it will be perfectly usable. Making this PCM boost-capable opens up a huge window for the Camaro/Firebird folks who want to turbo their car, but don't want to do a complete OBD1 wiring swap. (also Beretta, as the manual trans PCM I have is from a 3100 powered beretta!)