I have heard from a few people, one of them works for GM, that in the near future we will be able to buy a GM Performance supercharger at local dealers (for the 2.4 engine). They have also said that it will be covered under the factory warranty if installed by a GM dealership. Has anyone else heard anything along these lines?

 

I havent heard anything like that but it could albsolutely happen, thats basically what they did for the cavi, don't see why they wouldn't do it for the cobalt

 

When I got my Thank-you Call from the lordstown plant I asked the lady and she said a kit is in the works for the 2.4 and 2.2 but no date as of yet.

 

This would be awesome news for those that want to keep our warranty. However, I seriously doubt this news is credible.

For one the torque would easily go over the rated torque of the getrag trans and the auto trans too. But GM did offer a S/C for the 2.4L Twincam....automatic only I think. But then there was no S/C SS version of the Z24.

I wonder if they could just cut back on the warranty time/mileage--like a 1 year/20K KM.
That would be a way around it...maybe.

I'll keep my fingers crossed but I won't hold my breath on this one.

 

im sure the power wouldnt be overwelming on the engine or tranny

 

What is the torque rating for the getrag transmission?

 

have not heard that but it could happen... but then again for the amount you would pay for the supercharger you would of bene better off buying an ss\sc ( thats what i think)

 

http://media.gm.com:8221/us/powertra...6%20MG3%29.pdf

155lbs-ft----looks like its exceeded already

Heres the auto

http://media.gm.com:8221/us/powertra...0%28MN5%29.pdf

205lbs-ft


I wish GM would make a 6 speed Getrag with closer gear ratios and a much higher torque capacity.

 

2.2L Ecotech Supercharger



Wouldnt this work?

Fits:
2003-2005 Cavalier and Sunfire
Also fits certain 2002 Cavalier and Sunfire equiped with Delphi fuel injectors.

The ECOTEC supercharger package was designed by GM to be a true performance bolt on package. When this package is properly installed, it looks like orgianl factory equipment. The fact that the parts have been designed to GM standards ensures a qualit product. All of the fastners required for installation are included in the package. All of the service compoents for the package are available from any GM dealer. The package was designed to retain the use of cruse control, air conditioning and other vehicle options.



Currently, Per GM, Vehicle Free Re-calibration is only valid at the dealer the kit was purchased from . So, For example, if you purchase a supercharger kit from us, Pace Pontiac, and bring your car here, it will be re-flashed for free. If you take the car to another dealer, you are obligated to pay for the re-flash out-of-pocket. Generally 2 hours labor.This policy has been mandated by General Motors.

 

Yeah it does, otherwise the supercharged car would have used the same clutch and manual transmission. The auto definately won't take much more than the 2.4L puts out. That said, GM does have autos that take more power, but I'm not sure of their ability to fit in the car.

 

im pretty sure the auto tranny will handle up to 250hp

 

You guys have to remember the 2.4L engine has higher CR then the normal 2.2L engines do. You can't just throw a Supercharger kit on their and expect it to work, especially a non-intercooled kit which the GM one is. With the LNF Turbocharged ECOTEC in development also I'm pretty sure we're not going to see much of anything for this engine from GM kit wise.

 

im not worried about gm too much id rather go with aftermarket compnays anyway those parts usually make better power

 

well the 2.4 has more power out put then the 2.0 or the 2.2 so if they did come out with a super charger or turbo kit the thinking would be that it would have the capability to put out more power, probly in the 250 range. it would have to be intercooled and i would think some internal work would need to be done. so if gm does it right the 2.4 ss could be one bad ass little car. but gm never does it right.

 

Thats what the aftermarkets for my friend and I think the 2.4 is capable of holding some serious power

 

If your worried about the stresses on the engine being too much, just remember, according to the hearsay, GM would install it for you to get the warranty, im also sure they would make sure it would work in the car and do any other work that's necessary before giving it back to you.

 

aftermarkets can be great for power but factory stuff has an edge in relaibility I think. GM isn't some back door tuner. Alot of testing would go into what ever they make.

 

The Cavaliers and Sunfires had a cable controlled throttle body. The Cobalts, Pursuits, G4, all have drive by wire, so the tune should be different.

 

Exactly my point

 

GM only sells kits for the 2.4L older varient engine (pre-ecotec, which is completely different then the current 2.4L VVT ECOTEC LE5) and the new 2.2L ECOTEC and on that engine only in Cavaliers/Sunfires. GM does not support the use of of either Supercharger kit on any car but those they're designed for and specificaly listed as supporting. A GM dealerhsip wouldn't even install the kit in a Cobalt, let alone GM warranty the work.

GM making a kit for the 2.4L VVT ECOTEC LE5 is pretty much just a pipe dream. GM would realisticaly make a 2.2L ECOTEC Cobalt/G4/Pursuit kit way before they ever made a 2.4L LE5 kit. As mentioned such things as the change to throttle-by-wire alone would require a reworking of the kit, let alone if the engine bay is laid out similar enough to use the same piping or not. A 2.4L LE5 kit would require even more complexity to deal with such as correctly tuning for VVT and dealing with the much higher CR. The current kit does not have an intercooler so it would greatly increase the chances of knock on the stock engine, which already recommends 91+ octane to prevent knock in its NA form.

As Dragonsfire12345 said, if you really wnat to modify the LE5 you're going to need to seriously look at the aftermarket.

 

maybe i mis-understood something or it's because im not too knowlegable, but id imagine if gm made a super charger kit for the 2.4 liters that they use in the cobalts, they would make it to work in the car with no risk of blowing the engine, or hurting it in any way, thats what iw as trying ot say in my previous comment.

 

you DO realize itll most likely be THOUSANDS of dollars...

 

2.4s have forged internals already, just bolt on whatever forced induction you want and don't exceed roughly 8 psi.

 

AFAIK just forged rods and nothing else.