Can hypereutectic pistons handle nitrous?

Although hypereutectic pistons are still a cast piston, the addition of this extra silicon material gives several benefits over conventional cast pistons. If adding a power adder like nitrous, turbo, or supercharger, we recommend avoiding the use of a cast or hypereutectic piston.

Can you run nitrous with cast pistons?

Cast pistons can with stand nitrous. As long as you keep the shot low, and keep a steady amount of fuel.

Are hypereutectic pistons better than cast?

The point at which silicon is fully and exactly soluble in aluminum at operating temperatures is around 12%. Hypereutectic pistons are stronger than more common cast aluminum pistons and used in many high performance applications. They are not as strong as forged pistons, but are much lower cost due to being cast.

What kind of material is a hypereutectic piston made of?

Hypereutectic piston. Hypereutectic pistons are made of an aluminum alloy which has much more silicon present than is soluble in aluminum at the operating temperature. Hypereutectic aluminum has a lower coefficient of thermal expansion, which allows engine designers to specify much tighter tolerances.

Can a hypereutectic piston survive a detonation?

These pistons can survive mild detonation with less damage than stock pistons. 4032 and hypereutectic alloys have a low coefficient of thermal expansion, allowing tighter piston to cylinder bore fit at assembly temperature. The “2618” performance piston alloy has less than 2% silicon, and could be described as hypo (under) eutectic.

How is rough casting used for hypereutectic pistons?

After the alloy cools and solidifies it is removed from the mold and the rough casting is machined to its final shape. For applications which require stronger pistons, a forging process is used. In the forging process, the rough casting is placed in a die set while it is still hot and semi-solid.

What kind of piston alloy is hypo under eutectic?

The “2618” performance piston alloy has less than 2% silicon, and could be described as hypo (under) eutectic. This alloy is capable of experiencing the most detonation and abuse while suffering the least amount of damage.