Detonation - Caused by excessively high combustion chamber temps or pressures. The mixture is exploding rather than burning/expanding in a controlled way. Leads to even high temps and melted pistons etc
thats strange
my engine runs pretty cool, rarely see ACT's above 35c on boost, also the water temps rarely go above the middle. It gets plenty of fuel via a 5th injector as well.
anyone know which one you can hear and what sort of noise it makes ?
Duncan