I still have the old bosch knock sensor, and a loom - I thought it'd be interesting to put it back on and knock up (ah haha) a circuit that would trigger when it detects pinking.
There's a few people about running aftermarket systems that don't have knock sensing, and a fair bit of interest in fiddling with the +ign for best power, but there's no reliable way of knowing when to back it off.
I know pinking is around 15khz - the sensor is going to be resonant around there but will still pick up all sorts of noise from the engine - trick is a reliable way of filtering out the background noise and finding the pinking signal - I know how to do this easy enough - but has anyone got any experience of doing this in a little box of tricks that could be used when mapping.
as already mentioned, TBs aren't the quietest of things, so some other way of doing this would be nice..
anyone else be interested in such a device should I make one ?
lets have some thoughts then..