I've always wondered. What are the big differences between the 2.2L and the 2.4L besides displacement. Are the 2.4L internals stronger? Details please

 

x2!!

 

the L61 uses a 10.0:1 compression ratio and is obviously .2 liters smaller. The LE5 has more displacement, uses a 10.4:1 compression ratio, and has a VVT head. Thats really it. I think the 2.4 uses either stronger pistons or stronger rods, but not both. I can't remember which tho.

 

what he said.

 

The 2.4 also has the Gen II block as well as the oil squirters for the pistons. But i think the 08 2.2's are getting the Gen II block as well.

 

The nitty gritty of it is not only the VVT and displacement but the longer stroke adding additional crank leverage for peak torque at a faster engine speed.

Along with VVT, the 2.4L also has slightly more aggressive cams, higher compression and a more aggressive timing map.

Engine management is vastly different.

GM is now listing somewhat conflicting information about the LE5 connecting rod limitations. LE5 internals were believed to be stronger as evident by GM's powertrain data on their website (forged connecting rods more specifically). However recently published GM Performance data indicates 2.4L connecting rod failure point as the same as the 2.2L which may indicate a misprint on the powertrain website.

 

Witt,

I think you're the smartest man on this forum

 

I agree, he is one of the smartest members on the site.

 

I speak for a group of us. Like the Borg, the Pittsburgh ecotec group is nothing but a collective of information and broken parts.

Srsly tho, I just like to tear **** apart on cars.

 

Witt, you and your group (and they know who they are too) are just way too modest.

You guys have helped many of us far more than we would ever be able to repay! Well cept Area I can do what I can for him, and I know he's just one of the members of your brain trust!

I for one thank you!

 

The 2.4 also has cast rods vs the powdered rods of a 2.2. The 2.4 also has a forged crank I believe.

 

Witt,

Do you have a hot member like 7 of nine?

 

Intake and exhaust manifolds are different - bigger/better flow capability on 2.4.
TB on 2.2 is 60MM
TB on 2.4 is 68MM
Freer flowing exhaust system on 2.4 -- DP/cat-back

2.2 Auto Tranny has 3.63 final drive
2.4 Auto Tranny has 3.91 final drive

 

tuning .. has no one really said that yet

 

remember kids. the spark plugs are only good to 300hp





















yea. don't shoot me. im just the messenger

lawl

 

actually, your like the 4th to say it...so yea....

ive learnded so much!

 

where? i looked again and still dont see it

 

i was kinda exadurating btw, but Witt did mention it lol

 

LE5 does not have a forged crank, it's cast.

Up until 2007, the L61 didn't have a coil-on-plug ignition system like the LE5.

 

Oh wow thanks you! I went back and re-read the GM spec sheet for the 2.4 and your right. The crank is cast nodular iron, its the rods that are forged steel.

Click the link...http://media.gm.com/us/powertrain/en...tec/08_LE5.xls


I'm fighting the flu you'll have to forgive me a mistake or 2, its the meds.

 

Not a problem. Didn't mean it in a mean way. Just wanted to correct it.

 

Oh no dude I know that! I wasn't answering to be a smart ass I was really saying THANK YOU for your help. **** noone can be right 100% of the time, no one! And if you think you are I challange you to walk on water!

 

thats why i like u jack, first time i was on this forum i saw you where wrong on something and you maned up to it insted of calling the dude a jackass

hope you get better from your flu!

 

Thanks man, so do I! And seriously anyone, AND I DO MEAN ANYONE who can't admit to being wrong from time to time is a complete ass!

The only person I know of in history to never be wrong died almost 2000 years ago, since then noone else has walked on water. Well not with out some stupid floaty shoes!

 

Haha... no I was just clarifying before anyone else jumped in and took it the wrong way. Internet = overly sensitive.