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Date: Fri, 15 May 1998 10:26:06 +0100
From: "Tim Ricketts ,Wales, UK ." <rickettsnopsamil.com>
Subject: Re: Looking for info on APC


Jake Russell wrote: > > It's a volkswagen with a 1.6l turbo-diesel engine. You can read all about > it on: > - VW Golf GTD: http://weber.u.washington.edu/~jaker/gtd > > I'd like to get rid of "boost creep" and boost inconsistencies between > gears a conventional wastegate-boost controller can allow. The Saab APC > system may be a great way to get electronically regulated (and adjustable) > boost at an affordable cost. I've heard of a Volvo turbo-diesel owner > using Saab APC (which is a sister engine to the VW-Diesel) > > I've found some good info from previous posts and searches on the web. Can > anyone verify or add? Apparently, the APC system was started on the '83 > 900, they made some changes in '86; or at least the brain was moved from > under rear seat to engine compartment. The components are: "black box" > (brain), wastegate solenoid + air hose plumbing, a couple sensors (intake > manifold pressure sensor and knock sensor are my guesses; are these right?) > > Already found out about the internal "P", "F", and "K" trim-pot adjusters: > "Pressure", "Fallback rate", and "Knock sensitivity" Cool. > > Does anybody know if the unit will function without a knock sensor? (I've > got a diesel which either is not prone to detonation, or thrives off > detonation, depending who you ask ;-) so anyway, I probably would try to > get it working without the knock sensor. > > I suppose if I could find a used donor car that would be ideal; I could > just start examining the system and getting the parts I need. I'm in the > Seattle, WA area, so anyone have any leads send them my way please. > > My other idea was to go to a saab dealer and look at what their parts dept. > lists for the parts, and take notes. I already know of Carter > Volkswagen/Saab in Ballard, WA (they are very helpful there) > > BTW, do the APC solenoids have a lifetime? > > thanks for any help, > Jake > > danj <dannopsamorama.com> wrote in article <6jg2ca$4p8$1nopsamrnews.com>... > > what year is your car? > > dannopsamorama.com > > Jake Russell wrote in message > > <01bd7eee$f7db42e0$3bac8e8cnopsamer.u.washington.edu>... > > >Hey guys, > > > > > >I'm interested in upgrading a mechanically-controlled (wastegate) > > >turbocharged engine with electronic boost management using a Saab APC > > >controller. What years are compatible / benefits of designs of > different > > >years? What parts are required, and how much $ should I expect to pay > for > > >them (if I could find them used)? Should I buy the solenoid new or > used? > > >And anyone know of any junkyards that have Saab in the Seattle, WA area? > > > > > >thanks, > > >Jake The apc won't work without a knock sensor,and where you put it on the engine is crucial to.I'd give up now,and buy a good 900 turbo with apc, it'll be a lot easier! Tim.

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