Date: Wed, 28 Jan 1998 07:31:16 GMT From: "Nick Buddenbrock" <bdnbrcknopsamach.com> Subject: Re: Saab 900/9000 chiptrim ??
Here is another SAAB tuning site you may want to look at http://www.iypn.com/autotuning/ Justin VanAbrahams wrote in message <34CE5929.2543nopsamnet>... >Odd Harald Olsen wrote: >> >> Hello fellow Saab-owners. >> >> I currently own a Saab 900 Turbo APC (-84) and I am very satisified with >> the car. Under one of my "surfing"-sessions I came over a site in Sweden >> who offers a chiptrim for turbo engines. By sending these guys your >> APC/Chip-unit (The black-box under back-seat for the 900 ??!) they can >> give an 900 an extra 30 bhp, and 60 bhp for the 9000. >> >> Have anybody actually done this, and if so, what are the results. Any >> dangers to be aware of, like blowing your engine to pieces or something? > >I have never heard of these guys, but what they do is no mystery. >The APC box in a Saab 900/9000 Turbo controls the maximum boost >pressure. From the factory, this is set at somewhere between >10 and 13 psi (~ .7 and .9 bar) which is what Saab considered >to be safe for this car. This "upgraded" APC box is an old >trick, Group6 here in the states, Abbott Racing in the U.K., >and Nordic UHR in Sweden (I think) all do the same thing - they >adjust the APC box to increase the maximum boost pressure >it will allow. Usually, these increases will make the max >boost between 15 and 20psi (1 and 1.4 bar). That should be >good for 30hp or so... > >Quite frankly, I wouldn't pay someone to modify an APC box. >Do a search on The Saab Network or post a message to Turbo! >asking about this and I'm sure someone will be happy to tell >you how to do it yourself, so you can save your money for >rebuilding the transmission. > >In summary: It's an easy thing to do yourself, so paying someone >would be a waste. But, I wouldn't do it unless you've got $$$ >to burn, because more power=earlier replacement of things like >turbos and transmissions... > >-Justin
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