Ok I got a question for everyone, is anyone running a turbo on a 2.2 with a piggy back?
How does it actually run with it? hp? any problems? How much would one expect to pay for a system, for a 2007 2.2? how hard are they to install?

 

i think most of us going turbo or sc are waiting for HP tuners, personally i dont want to F around with piggy back, HP is the way to go.

 

HPTUNERS are said their not doing anything for the 2.2 at least for now, best bet is maybe SCT

 

ah ok, the last thing i heard was they were and everyones waiting for it, well thats shitty. hmm i guess probably the garrett full kit or the hahn is where its at.

 

AEM FIC:

http://www.aempower.com/ViewCategory...CategoryID=116

It is so far the best option any of us have seen for the Cobalt specifically. I am considering it myself. And the listed price there is just suggested retail. I have seen it from vendors on this site for much almost a hundred bucks less.

 

so no one has a kit? all inclusive?

 

piggybacks are our best bet right now. You can use a megasquirt for full standalone...

I've used the aem fi/c before on previous turbo installs. I love aem software. The smt doesn't seem too bad either, but I've personally never used it.

you can get the hahn turbo kit and it's a pretty straight forward install with just a reflash for tuning. Problem is you can't make changes without redoing your software. Really it depends on how mechanically inclined you are. To some people it's a cakewalk and to others it might seem like some crazy impossible job.

There are a few people who've actually turboed their cobalts... I'm sure they'll step in soon

 

For the 2007, no. However, if you get the Garrett Tuner kit, which is all the necessary hardware, and then use the AEM unit with some bigger injectors, that would include everything you need.

 

what about the alpine kit for the 2.2? will it work on a 2007?

 

I'm not sure if it would or not. Did a quick search and the add I saw didn't specify years. I'm sure it would bolt up but I don't know if the new ecu they send you comes with sai flashed out or not. That would be the only problem I could think of.

 

The SMT6 has a lot more control over timing and the AEM FIC has better control and features for bigger injectors. The SMT6 cannot replace stock injectors, well it could but im not going to go into the details. The AEM FIC can actually alter the pulse width going to the stock injectors or larger injectors so the car sees no change.

From my experience the smt6 had worked great on my vehicle. I will be keeping it on and running 4 secondary injectors and controlling them via speed density.

 

as far as boost goes I'd rather have the pulse-width control. The aem can pull timing but can't advance... which doesn't really matter because chances are you're not going to advance timing on a boost app anyway. From what I hear about the smt the aem seems more user friendly anyway.

 

lets say the garret kit and the aem, how hard do u think it would be to do?
Could you do it with basic tools?

 

Why are people so scared to use a piggyback with a forced induction setup?

You guys do realize that MANY of higher end cars for YEARS have used piggybacks reliably and still do.

It's all about in the amount of control. You can blow your motor with a standalone, PCM programmer or piggyback but it's in how much control and how well of tuning you're making in the first place.

 

You need a bit more then basic tools. But i wouldnt say it is hard. Just time consuming. The garrett kit comes with instructions and if you follow them to a tee you will be ok. Just dont rush anything. Take your time. Give your self a few good long days to install it and make sure you have a backup car. If you know anyone in your area that has done something like this you may want to ask them for help or find someone that has some mechanical background to help you. Here is a link and a pic to the the aem unit.

AEM Ignition and Fuel Control Unit for the Cobalt

 

the garret alpha comes with tuning... jsut use that it also includes larger injectors.

 

Yes but only for 05-06. hes got an 07

 

ohhh dint realize that

 

depends on what you consider hard and what you consider basic tools. Some people think changing brakes is hard. Then there's people like me that consider 15k in tools to be a "basic" tool set

 

I think you need to be my neighbor =P

 

lol yea. My neighbors love me. I have a lift, MODIS, welder, mandrel bender, just about every hand tool/diag tool you can think of in my basement. needless to say all my friends' cars stay in good working order.

 

megasquirt is what I would probably go with. The tuning software isn't too hard to use, and helps you out quite a bit, and it's on the cheap side since you have to build it yourself (which from what I've heard teaches you a lot about how your car works)

 

You do realize that megasquirt is a end-user built, stand alone system, right? It would replace the stock ECM. And it only controls fuel, not ignition. And if you use a stand alone computer in a Cobalt, that will really screw the car up. A pre-manufactured piggy back unit like the SMT or AEM units are the way to go.

 

Megasquirt is AWESOME for the money and gives you alot of control over the car. The only problem is you're going to throw 2 pages worth of codes. It's not going to effect drivability since the bcm will have no control over the engine... but you'll never pass emmissions with the squirt.

If passing emmisions isn't a problem for you, I say go for it. Megasquirt's the ****

www.rs-autosport.com - buy pre-made wiring harnesses and megasquirts. Makes it so easy

http://www.msefi.com/ -testing, troubleshooting, software, etc. all free

you can control ignition with a squirt...

hell you can set up automatic nitrous retard, launch control, staged nitrous, etc.

I used the squirt on my 03 neon. It was a little trickier though. Had to fabricate a secondary crank trigger wheel on my underdrive pulley so I could read the ign. It shouldn't be a problem on gm products though. Everything with the megasquirt is gm based.

 

Actually you can use it as a fuel/ignition standalone and retain all your stock functions. If you put a 12ohm resister in the injector harness the car thinks the stock injectors are there and you can run the larger ones off the MS. The ignition part is a bit more complicated and not worth it really. i would just use an smt6 to control timing and the ms for fuel.