Ummm...no...

 

ROFL

he sounds like a cheesy salesman....

 

haha .... you are telling a GM Engineer he is wrong about the learndown feature. priceless.

 

Yeah I think they are forgetting who that is.

 

Ha ha I know...there's been plenty of people that have tuned on the "New OS" on the other platforms this motor is in (Sky RL, Solstice GXP, HHR SS) and the only change is the reading for the 3 bar MAP Sensor instead of the 2 bar MAP currently in it...IT'S STILL AN AIR LOAD BASED SYSTEM... SAME AS THE CURRENT ONE...THUS..You're ECU will target certain parameters and do it's best to meet its settings...so..."Learn Down" as it's known...is still a go.

 

sooooo what if they did something different? I dont know much on the LNF but considering you are not a GM Engineer who has the car I would shut up for now....

 

Here's a General Computer Engineer/Programmer who has dove deep into this ECU...his name is Vince...tuner of Trifecta...read this and then go tell him he's an idiot...

www . lnfperformance . com/forums/showpost.php?p=7820&postcount=10

And if you really think they changed something between how the ECU in the Cobalt tune vs the HHR, Solstice, or Sky works...then you are high as a kite.

 

It has to have some safety parameters in place. GM probly wouldnt warranty it if there werent any.

 

Please dont turn this thread into a bitch fest, Thanks! (nice link BTW)

 

I'm not trying to turn it into anything...I'm simply trying to enlighten people that question the "learn down." And I hate how this site will let you post links about damn near everything except another forum!!!

 

the SS/TC is toned down with its stage 1. The reason for this is GM doesnt want it directly competing with the gxp/rl.

Its kind of like the LS1 camaro vs LS1 corvette. The camaro was given restrictive parts to make it produce less power than the c-vette. Otherwise, they were and performed identically, and that would have left a lot of pissed c-vette owners.

 

Sure it may be tuned down slightly from the RL/GXP...but it's the same OS is what I'm getting at.

 

Im not arguing that. Im just pointing out a fact so everyone knows and doesnt say " well wtf how come the gxp has more whp/wtq? ".

 

I think it's because the Tranny/Clutch combo in the RWD platforms is all-around stronger and they've got warranties to worry about.

 

subd

 

More info from Bill

--------------------------------------------------------------------------------

Quote:
The PSI really depends on weather and temperature because boost pressure is not used to as a calibration control. 22psi is the top I have seen. However it is on a cooler morning. The peak power at 4700 +50 HP at 4700 RPM will be up on GMTunersource.com with a graph by EOD so you can report that.

I asked before i could post this but here is some more info! Quote from Bill!


EOD??? Is that Explosive Ordinance Disposal???

 

Awesome, man! Let us know how everything goes.

 

Can't help you with engine goodies but I've been talking to Enkei Race Wheels and they will be releasing a new wheel the end of September for sale in October. No pictures yet but it will be LIGHTER than the 16# RPF1 in the race wheel line and priced about the same. Only one problem. They haven't decided if they're going to include a 5X110 ( and maybe a 17" thet WILL go over the Bremboss) in the mix. They are CONSIDERING it. I WANT LIGHT WHEELS. Call Enkei, ask for King and tell him you want a light wheel for your Cobalt. It would definately help the cause. The number is 800-875-3100. It won't take much of your time and may get us a MUCH needed lightweight race wheel for our cars.

Maybe if you described how they get rid of it everybody will understand/believe it. There are still a lot of nay-sayers out tthere. Is it the new Operating System that does the trick or was I misinformed?

 

2010, Could it be the year of the KIT and not the year of the car??

 

there will be a 2010 cobalt ss/tc coupe. only the sedan was discontinued.

 

EOD: End of Day

 

Ding, ding, ding! Give the man a prize!

For those who haven't noticed it yet:

http://www.gmtunersource.com/index.p...bo-stage-1-kit

 

The desired airloads and other tables that control boost (Max airload torque and others) cannot be removed by the tune but these settings are simply raised by the stage tune. You cannot remove these controls but you can raise them higher. The GM tune will still keep those desired airloads so as you mod it will add power but not as much as if you tuned on top of the stage tune. Take BartSS's HHR for example he made 287whp 293 with the stage kit and boltons which is approx 30 whp more than a stage tune only HHR made that same day on that dyno. Once he was tuned on top of the stage tune the gains are far better.

 

how about a 2010 cobalt ss/tc for my prize ??

 

Badass, I like that fatter power band, I see very good acceleration coming from this kit! Better trap speed definately. and its top end power is increased by 20 but the rest is juicy!

Most people have a problem with 20hp gain because they only think of it as the top end gain not the mid or bottom end. Mid is where its at, now you can shift sooner than before to be in your power band!