The only correction I can make is that most 2.0L VW in-line 4 motors also use knock sensors (I wouldn't exactly call all of them "high performance"). I know my TiiCo motor uses one. I think the main 2 reasons to use a knock sensor are 9:1 and higher compression, and use of forced induction (turbo/supercharger). Most automaker these days are probably using knock sensors just to keep their supposed "high efficiency" (high compression) motors from blowing up when you get a batch of bad gas.
Sean B. '90 V'gon, "Happy Bus", pseudo Wolfy Torrance, CA Join the TiiCo registry at HTTP://www.vgonman.com On Fri, 28 Dec 2001 19:47:43 +0000 Paul Mayfield <paulmayfield@EARTHLINK.NET> writes: > Please correct me if any of this is untrue/incorrect! > <SNIP> > I've heard some high performance > high compression engines have preignition sensors > that adjust to lower power levels when 87 octane is used. > (porsche,corvette?) <SNIP> |
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