I think this would be a good idea, even though its pointless, so we can get all the performance upgrades on the table. Unless you've been living in a hole the past few months here's information on Stage 1 and Stage 2 for the Cobalt SS S/C 2.0L.

The Stage 1 kit includes higher flow injectors and a new PCM calibration. The injectors give the engine enough fuel to rev higher, and the new engine calibration allows it all to happen by raising the rev limiter to 6700rpm. The new calibration also allows full boost instead of limiting it to a 205hp maximum with the stock PCM.
The Stage 2 adds the same injectors and calibration as Stage 1, but also includes a smaller 79mm supercharger pulley which increases boost by 2psi.

So what could be the next step? Well I think it could be a new cylinder head, with performance cams, adjustable cam gears, valves and valve springs. Quiet possibly a tune as well resetting the rev limiter to 7500RPM's. GM is increasing fuel and air into the Ecotec engine in Stages 1 & 2, so I believe improving where both of those are held up most would be the best logical direction for upgrading. What do you guys think?

 

Well, I don't have a Cobalt, But I'm just gonna go with whatever GM puts out, If there is a Stage 3. THat and a Fujita CAI.

 

A new cylinder head w/ proformance cams would be a lot of money to spend. The higher RPMs would be very nice though, especially in first.

 

Well they could do a core charge, unless you want to keep an extra cylinder head around....

 

The GM performance parts article states that LSJ internals are only rated up to 300 horsepower. GM will not take it much farther. All the Cobalt needs is a bigger blower and Injectors and 300 horsepower will come easily.

 

agreed... i wouldn't want over 300 in my cobalt anyways...

 

I thought it was a 350HP limit before swapping it with a higher flowing head.

 

i will be getting a stage 2 for sure...i may get a stage 3 depending on price. Any ideas of how much these will cost roughly?

 

They're probably price it around what DCX has for the SRT4 stage upgrades.

S1 = 399
S2 = 999

 

me personally if i was gm (lol) i would make the stage kits cheap as hell, but then say you voided your warranty with them. hell think about it.... a stage 1 kit, $50 stage 2 kit $150

everyone and their brother would be going to get them and we just saved the company hundreds of thousands in warranty work.

 

Not a chance in hell that they will be that cheap. Pulley itself is 100 dollars, Plus you need the Puller which is another 50 dollars. I think 399 for S1 and 499 for S2 sounds reasonable.

 

I'm definately getting stage 2 with either the fujita or k&n intake, a 3" exhaust, and possible they SCDyne headers or TOG headers. Then i'll be done for performance. Ill move onto some dubs lol jk but a nice pair of 18's, hid's, strobe lights (i like how they look) and maybe the carbon fiber ss hood.

 

Guys pay 800 dollars for Hid kits and thousands of dollars for body kit's so 399 and 499-599 shouldn't be bad for upgrade kits.

 

GRRRR im to impatient....I want GM to release them now!!!!

 

I remember hearing someone saying why they should release a new CAI with stage two. So they aren't then? I want to make sure before I go out and buy one.

 

Somebody posted their visit to the Grand AM Cup race in Ohio awhile back. May have been on ******************?

They had the Performance Redline on display, and the guy took a bunch of pictures. He also posted all the stuff he heard from the GM tech on hand.

He was right about stage 1/2, and from what I remember Stage3 was to be nitrous. It was in the pics, the button was where our cruise control is.

We'll have to wait and see.

 

wow! that would be realy expensive! oh and a cobalt will never rev past 7000rpms, the motor cant handle high revs and FI.

 

A stage upgrade would not "void your warranty" Im not trying to be a jerk but dont word it like that becuase ti confuses people... If you got a stage 3 and your back window leaked... guess what your warranty would still be there NOT VOIDED a warranty is a complex piece by piece thing not one umbrella that can woosh away in 2 seconds...

 

I agree, some people pay to make it look fast then they can't afford to make it fast. I want fast and I already have the wife agreeing to letting me spend $5,000. for stage 3 and other goodies for my toy, likely clutch and flywheel. I have already ordered my header\cai and once I have those I will get the exhaust. Then I will just grind my teeth waiting for GM to take my money.
And I know some will say that I should have just bought something else to begin with. Lets just say that I love my cobalt and have since the first time I saw a picture of it, when we bought our Blazer.

 

I know how you like to argue so I'll let you argue with GM Racing....

 

I read that same article. I cant wait for the Stages to finally come out. I still have yet to buy a CAI because of everyone throwing a code. You would think that GM would come out with their own CAI that would work w/o throwing a code.

 

I would just wait and get your CAI after or when you get the stage kit... Im positive they are going to make the PCMs fault logic much more relaxed with the tune... I think that will eliminate everyones CEL problems.... Also though.... it seems like a lot of peoples CEL have just come from disconnecting the battery...

 

I thought that was for the 2.2

 

yah my friends say to wait til the upgrades any way, cause I believe some of those CAI will probally drop in price.

 

Happy to have till April-ish to watch and buy mods!