How much HP can hypereutectic pistons handle?

Hypereutectic (Cast) Aluminum Pistons Best suited for up to roughly 600-650 horsepower in normally aspirated engines.

Are hypereutectic pistons stronger than cast?

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.

Are hypereutectic pistons bad?

Hypereutectic pistons have a-lot of silicon in them. The silicon makes them very wear resistant, and very brittle. Having a brittle piston in a boosted engine is not a good idea because they are more prone to cracking if you get any detonation, which is more likely in a boosted engine.

Are forged pistons lighter than Hypereutectic?

Forged pistons are known to “slap” the cylinder at start-up until the temperature rises. Hypereutectics on the other hand are “cast” into molds, and therefore, are more porous,resulting in lighter weight.

What pistons make the most power?

It is true that forged pistons are heavier than cast pistons, but this is counteracted by the ability to provide a high compression ratio inside the engine, enabling the engine to rev higher and produce more power.

What is Hypereutectic alloy?

A hypereutectic alloy is metallic alloy with a composition beyond the eutectic point. A typical alloy may have a substrate and a primary alloying element. The substrate in aluminum-silicon (Al-Si) alloy is aluminum, whereas the primary alloying element is silicon.

Who makes Hypatec?

Street Machine is giving away a 308 that is built using the Hypatec Liquid Forged pistons as well as parts exclusively made by Pression International who make the pistons.

Are hypereutectic pistons lighter?

Registered. Light is usually 400-450 grams for a 4″ bore piston, A Hypereutectic will be lighter than most Forged pistons in its price range.

What’s the difference between hypereutectic and cast pistons?

Hypereutectic pistons (which are also cast) were introduced over a decade ago for OEM engines that required something stronger than an ordinary cast piston. Hypereutectic alloys contain a much higher level of silicon (16.5 to 18 percent versus 8.5 to 10.5 percent in a typical cast piston alloy such as SAE 332 or F-132).

Why are hypereutectic pistons used in Hughes engines?

The KB line of hypereutectic pistons were designed around the 390 alloy. The result is a high performance part intended to give the performance engine builder access to the latest in piston technology. Forgings have long been the mainstay of the performance business and did well in the big cubic inch engines of the 60’s.

How much horsepower can you put in performance pistons?

Beyond 2 horsepower per cubic inch, they would recommend upgrading to forged pistons. The manufacturer also said its hypereutectic performance pistons may be able to handle up to 1,000 horsepower provided the fuel mixture and timing are correct so the engine doesn’t go into detonation or preignition.

What kind of pistons are in late model cars?

Many late model engines today come factory-equipped with hypereutectic pistons. In many instances, the OEM hypereutectic pistons can handle engine modifications that boost power up to 30 percent or more over stock.