what is the difference between forged and hypereutectic pistons? what are the pros and cons of each? the benefits? thanks.

 

A hyp piston is an alloy with silicon, which is better than a regular cast piston. Forged pistons are stronger than both hyp and cast, yet more expensive. They are recommended when using a blower, turbo or Nitro. People have used a power adder successfully with hyp ones, but it's still taking a risk as far as I'm concerned.

 

Yep, the forged flat tops are the better choice for racing. Take a read HERE

 

Is there some other kind of pistion that is better then a forged pistion?

 

I don't think so, Joe. If you can find one better, let us know.

 

Actually yes there is. It's whats called a "free forged" piston. Its almost the same as a regular forged piston except you dont have to pay for it.

 

Some years back I was reading about some pistion that was over all better.

 

Well, don't stop there, tell us what it is.

 

This is right out of a Tech artical in the Mustang and Ford magazine:

As with connecting rods, we have to ask ourselves how the engine will be used when it comes to cast versus hypereutectic versus forged pistons. Cast and hypereutectic pistons are ideal for engines that witness a lot of street use with the occasional weekend dragstrip visit. Forged pistons are suggested whenever the revs are expected to be high. Forged pistons expand at a different rate than cast and hypereutectic, which means they are sometimes noisy when cold. Cast and hypereutectic pistons are both cast-aluminum pieces. The hypereutectic piston has a higher silicon content for rigidity. It can take a greater pounding than a cast piston and is cheaper than forged.

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Correct me if I'm wrong... but I've been told that you don't want to run a forged piston in a street motor because they have a shorter fatigue life than cast/hyper pistons... I could be wrong, especially when you consider that forged is supposed to have a higher strength than the other two... Mabe it was that it is less resistant to damage due to pinging. Anyone else hear this?