Re: 92 octane disappearing - Saab Performance Bulletin Board - Saabnet.com
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Re: 92 octane disappearing
Posted by jerrit [Email] (more from jerrit) on Tue, 17 Feb 2009 21:26:58
In Reply to: Re: 92 octane disappearing, jerrit, Tue, 17 Feb 2009 21:15:02
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There are many posts on this subject on this board. This one in particular is revealing.
http://saabnet.com/tsn/bb/performance/index.html?bID=107171
"Trionic-7 uses the spark plug gap to measure ionization in the combustion chamber. T-7 uses this to look for detonation, or so I've heard. The water injection system may have altered the resistance across the plug gap, leading the T-7 system to think that detonation was taking place. This will have two effects: (1) retarded timing (2) reduced boost"
I remember reading this stuff back then as well, and decided against this route. I forgot to mention, I have a 2001 viggen, so that's the same t7 and b235 as your 2001 9-5 aero.
posted by 216.239....
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