depot boardsRe: And for our Next Trick ... How 'bout a diyTrionic?

[Steven Gorkowski]

I have access to a lab materials to remove most any epoxy from
electronic parts. But can't promise if the unit will work but they work
in 99% of the time.Contact me off line if you want this done.

Steve
kb4mxo at mwt.net

garfield at pilgrimhouse.com wrote:

> Hey Maties.
>
> I been keepin this under me hat for a while, but thot I'd spill the
> beans and max out the fun, now that I have a Lab Rat working. Member
> that thread awhile back about using the post-spark ionization current
> to
> detect detonation and misfires? Well, one of our illustrious members,
> whose initials are Jim Crance (golly, I hope he doesn't mind taking a
> bow), who's also a fellow pilot, got aholdOme and said he had a
> slightly
> marginal Trionic Ignition/Ionization unit from Saab that worked fine
> excpet it hickup'd whenever it was in a deep freeze, and would I like
> to
> have a look? Jim's a Saab (& other Euro's) Mech. So I got the thang
> last
> week before last, along with a nice Saab 9000 manual Jim sent along,
> and
> danged if it don't look feasible to diy.
>
> The assembly's epoxy potted, so limits my snooping to watching it fly
> from the outside (just as well), but like I said before, I figure
> ANYTHING that's being mass deployed in the commercial auto market has
> GOT to be diy'able; otherwise anything twitchy/complicated/sensitive
> isn't gonna make it, and Saab's apparently been using this technology
> since '93!! Does this remind you at all of EGOR?
>
> So, here's the plan. Just like before, instead of 'cheating' and
> looking
> inside, we'll use the same approach as on EGOR, and try to LEARN how
> it
> works, with yous guys help, like before. Now, since I'm not a member
> of
> SAE, and I see they want a $100/yr subscription JUST to search their
> Paper's bibliography, I am soliciting help in locating any/all
> articles/info on this system. I can't imagine Saab not touting it
> upon/in-prep-for it's introduction in '93, so there have GOT to be
> some
> interesting/useful papers available. Soooo, any of yous guys with a
> moment and a membership in SAE, could you start the ball rolling by
> doing a search in the SAE Bibliography for any hits on the following
> known good keywords:
>         Saab  AND Trionic, "Ignition Discharge Module", Ionization,
> etc.
>
> The manual Jim sent me says "The Saab Trionic system was introduced in
>
> 1993 on Saab 9000 models fitted with the B234L engine." The manual
> itself if for '96, and assuming they're still using this Trionic stuff
>
> in '98, that means the thang's been deployed for 5 years. That oughta
> be
> enough to convince anyone it works, I would guess. [Saab sells alot of
>
> them Turbo 9000's, don't it? At any rate I sure see alot of them here
> in
> Calif. A fan of the yuppie crowd, ifyaknowadamean.]
>
> Finally, Fair Use allows us the privilege of posting a few of the key
> pages from the manual to wet your appetite, so I'll scan a couple in
> and
> post them up on the FTP site. This could give ole EGOR a definitive
> challenge to his nascent fameNnotoriety. Now he's gonna have
> competition. Sorta like the Red & Yellow MnM bozos. Heh.
>
> Let's get'er rollin, dudes. Cuz this tech sure looks like it beats the
>
> acoustic knock detection schemes by a Swedish mile! And, unless we get
> a
> total firehose of activity on this and begin to overload the list, how
>
> bout you POST your finds instead of sending them to me privately.
> Might
> encourage the beehive effect, and bring everyone interested up to
> speed
> that much faster. [BTW, didy'all know that this gizmo is even used to
> "commute" the spark/injection, by replacing the cam sensor? Yeah, it
> detects which "other" pair of plugs is firing via ionization current,
> and combined with the crank sensor for the "intersecting pair",
> determines which cylinder is at TDC on it's power stroke. Cool, eh?]
>
> Cheers maties; if we pull THIS one off, we'll have to think seriously
> about holding some kinda party or sumpin, eh? Could be fun.
>
> Gar