Originally Posted by
miller3
Can i ask what sort of garages you have taken it to for inspection? chances are they may not be that in-touch with tuned cars with raised cylinder pressures to comment on the H/G failure? i may be wrong and if so im sorry.
A local mechanic garage and a bmw specialist who does work on performance cars.as stated the comp ratio came back all spot on so the piston is deffintly not to blame and said who ever said a piston to cause hg failure needs to go back to school