how much can you spray on top of a pretty stout h/c package (with the rest of the engine stock, besides support mods that help h/c package)???

 

imo, spraying on top of a H/C car with a stock bottom end is just living on borrowed time, at almost any level.

 

what do you mean? mod up the internals to take more spray or its depressing because you dont constantly have that power???

 

Well, give the car too much cylinder pressure and you run the risk of cracking a ringland. These are just Hypereutectic pistons.. personally I wouldn't risk it without forged rods and pistons, but there's a lot of people spraying H/C's on bottom ends and living just fine. The tune would have to be perfect, and even then it's not a guarantee it won't break. Some people are lucky though..