Forged pistons for EJ22T

[EurosportRally]

Does anybody know of any company that actually stocks forged pistons for the Ej22T?

Thanks,

Andrew

[vrg3]

I think PAECO makes them. http://www.paeco.com/

[morgie]

you can also ask JE-Pistons to make a set for you

[EurosportRally]

thanks!!!

Does anybody here have any experience with them? Are they good pistons?

The motor is for a rally car, so you can imagine the abuse it will get. We run 22-24 psi.

Thanks,

Andrew

[JasonGrahn]

Andrew, there are many companies that will custom make forged pistons for you. As for stocking them, that may not be the best idea for the duties that your rally car sees.

Here are a couple of links to get you started:
http://www.crower.com
http://www.rosspistons.com
http://www.ariaspistons.com/contact.htm

Also Wiesco, Paeco, and JE as mentioned.

You may want to call each company and discuss your application, your wants, and your needs. They'll probably be able to come back with exactly what you need.

[Yukonart]

Might also want to consider a set of hypereurectic cast pistons.

Subaru now uses these in place of forged pistons in turbo applications (ie. WRX, STi, Forrester XT, etc) and claims 120% strength increase over forged pistons.


I have no idea if they're available for the EJ22 series engines. . . but if you're going to have pistons custom-fabbed, these should be cheaper and stronger than a forged set.

[evolutionmovement]

Hypereutectic pistons contain a higher percentage of silicon (around 16%) than can be fully saturated into the alloy (around 12%) which makes them more wear resistant, but primarily prevents them from expanding as much as a lower silicon content alloy. This allows for tighter piston to cylinder clearances and allows the piston ring to be placed closer to the top of the piston. It's primarily an emissions deal as the closer you can get the ring to the top of the piston, the less room there is for unburned fuel to collect there, which obviously allows the fuel air mixture to burn more completely and, therefore, the engine to run more cleanly. The piston can also be a little lighter with less material required above the rings and the tighter tollerances allow for a reduction in cold start noise. The high silicon content actually makes the piston more prone to fracture upon detonation than a traditional forged piston or low-silicon (eutectic) alloy cast piston.

Steve