In a message dated 96-05-20 11:43:47 EDT, 75377.3445@CompuServe.COM (Neil Swanson) writes: >No pinging yet so you know the stock curve is >lame. Stock boost is tripled. I think that what you mean is, no pinging that you can hear. It would be a dangerous and expensive assumption to believe that pre-ignition has to be audible to the driver to be harmful.