95COBRA241
New Member
Michael Yount said:Hypers are fine in the right application. They actually stronger than forged -- however, they're not as ductile. So when things go wrong in the chamber -- detonation or lean with nitrous for example -- a forged piston is more forgiving than a hyper. To oversimplify - forged pistons bend - hypers break. Because they're more brittle, when they let go they usually take out a bunch more other stuff. With a forged, you might just push a hole through the piston. With a hyper -- a lot more concomitant damage occurs.
I agree except for one point I've researched. Hypers are so much more brittle that they can break at the first sign of detonation. This is why you have to be careful to get the tune exact when using them with nitrous or forced induction. On the other hand it takes a lot more detonation to melt a forged. So when a forged does finally fail it will cause more damage. The best part of forged is that its more forgiving should the tune not be right.