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Registered
Join Date: Jul 2003
Location: Perfidious Albion
Posts: 4,184
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Reactionary attitudes and xenophobia around knock detection on 911s is wide-spread and commonplace- decades after the first guys here fitted one and found they worked. I bought mine in 2010 after reading a 2002 post here from a guy who'd fitted one 10 years and many 1000's of miles prior.
Some say "aircooled motors are too noisy". But the factory not only considered the technology functional, but worth fitting to the 964s onwards. They're not magically any quieter.
At least one of the aftermarket ones is well designed, documented, supported and far easier to set up than ECU-based knock control.
I won't comment on systems I've never used.
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'77 S with '78 930 power and a few other things.
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