Exactly the question above however i dont mean on stock internals. My question that I cannot find the answer is how far can you push the block casting itself when you have fully forged internals, head bolts and all that stuff.
For example the new focus RS the blocks start to crack at around 450HP as they are open deck and they get cylinder oscillation which fatigues and cracks down the block between 2 and 3 cylinder.
For example the new focus RS the blocks start to crack at around 450HP as they are open deck and they get cylinder oscillation which fatigues and cracks down the block between 2 and 3 cylinder.