my other halfs kr 16v corrado has just had a full head rebuild and polish to fast road spec, but I think its pinking under full load. If you acccelerate gently, say half throttle, nothing, but if on full throttle, once over 4k, there a rattly noise, sounds a bit like a heat sheild is loose, like a tinkling, not super loud, but if you have the window open, you can just hear it! is this pinking?
could be. you'd usually only getting under heavy load conditions. try some higher octane fuel or retard the timing a little and see if it goes away
Its always run on shell optimax or tesco 99 ron super unleaded. Im leaving her my Jetta to use tomorrow so I will have a listen when I use her Corrado for the day
Pinking sounds like a light high pitched metallic tapping.. Crank the the timing back on the distributer as said above.. (Twist it anti-clockwise) a few degrees..
