Eco tec 2.2 article shows each step of the way to 800 hp.

[D&dgoblin69]

GM Racing Ecotec Engine - Birth Of The Ultimate Import Fighter? - Turbo Magazine

Check out this heavily modified GM Racing Ecotec Engine designed to take down import racers. - Turbo Magazine

www.motortrend.com

 

[comegetjoe]

Holy details, Batman! Thats a lot of info.

 

[D&dgoblin69]

Holy details, Batman! Thats a lot of info. Yes but the most important for most is the fact that the 2.2 stock internals failed at 283 hp. Stated 250 hp ok. Past that forged rods and pistons

 

[KingChuck24]

That's odd because my donor that I bought, 2.4l with an aftermarket supercharger, was stated to be at around 290 HP on max boost. Obviously he could be lying but this makes me not want to max out the boost. Does the 2.4l have better rods and pistons?

 

[Desert Sasqwatch]

The 2.4 is not a 2.2. The 2.4 was built with forged internals and has a significantly more stout bottom end.

 

[KingChuck24]

The 2.4 is not a 2.2. The 2.4 was built with forged internals and has a significantly more stout bottom end.

Oh great, nice to know that it hopefully wont sling a piston into orbit. I was a little worried about that.

 

[k.rollin]

That's odd because my donor that I bought, 2.4l with an aftermarket supercharger, was stated to be at around 290 HP on max boost. Obviously he could be lying but this makes me not want to max out the boost. Does the 2.4l have better rods and pistons?

The LE5 engines built prior to 2008 had forged steel connecting rods from factory. The newer ones had forged powdered metal connecting rods.