I have having an 'experiment' on how to increase boost at high RPM. Unfortunately I ended up with too much boost (enough to separate the exhaust system). I can't say how much boost the system was generating for sure - because the sensor I use collect boost data for the logger maxes out at 1.5 bar - but I was the needle on the boost gauge was on the 'pin' at 1.7 bar. Anyway I think there is a bit of oil in the coolant. So I am concerned that I have indeed damaged the head gasket (car still seems to run fine...)

ok then.. what is the best way to test to see if you actually have a head gasket problem with these engines? I need to find out for sue before I pull the head off the engine.

Regards, jim.