by PeteS on Fri Dec 19, 2008 7:16 am
Hello Kemoly
Wow, hole in the piston. Thats no good.
Sounds like a classic case of detonation.
Its likley the engine had an inapropriate amount of ign timing for the conditions it was being operated in.
Detonation could have occured for many different reasons, from simply some incorrect settings in an air temp comp table or particularly poor fuel quality to things like wrong plugs as Ross mentioned.
One feature that is available in the M800 V3 software is a wide open throttle timer.
This can be configured onto both a fuel and ign compensation.
So in the case where you choose to hold the engine under full power for long periods of time, ign timing can be progressively removed, the longer you hold it flat the more timing you can program to come out of the engine, similarly fuel can be added to help cool off combustion chamber temperatures. With this style feature you can run an aggressive ign and fuel map for short bursts of power, but retain safety if you are going to hold it flat.
Ultimately our closed loop knock control system can be calibrated to your engine protecting it from ongoing detonation.
MoTeC Research Centre, Melbourne Australia
fu#%@^g motec !!
