Help please with RODS info

[ozonehostile]

rods snap if they are unable to take the strain of compressing 2.2 bar worth of air and fuel. high rpm wouldn't help the situation either as at 5k+ there's a fair bit of momentum to push them out the bottom. im refraining from revving mine above 4k rpm and no more than 1.5 bar boost until i have forged rods and headstuds in. dont want to destroy my freshly rebuilt engine